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sfs_umn_251009

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Reviewed-by: Miskanin, Jan <jan.miskanin@t-systems.com>
Co-authored-by: lizaoxu <lizaoxu@huawei.com>
Co-committed-by: lizaoxu <lizaoxu@huawei.com>
This commit is contained in:
Zaoxu, Li
2025-12-12 13:31:36 +00:00
committed by zuul
parent 53f94d774d
commit 8341d19ec6
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<h1 class="topictitle1">What Is SFS?</h1>
<div id="body1469764805159"><div class="section" id="en-us_topic_0034428718__section2059192116103"><h4 class="sectiontitle">Overview</h4><p id="en-us_topic_0034428718__p4897627821237">Scalable File Service (SFS) provides scalable, high-performance (NAS) file storage. With SFS, you can enjoy shared file access spanning multiple Elastic Cloud Servers (ECSs), Bare Metal Servers (BMSs), and containers created on Cloud Container Engine (CCE). See <a href="#en-us_topic_0034428718__fig1762807410259">Figure 1</a>.</p>
<div class="fignone" id="en-us_topic_0034428718__fig1762807410259"><a name="en-us_topic_0034428718__fig1762807410259"></a><a name="fig1762807410259"></a><span class="figcap"><b>Figure 1 </b>Accessing SFS</span><br><span><img id="en-us_topic_0034428718__image99261148174814" src="en-us_image_0259710043.png" height="411.96750000000003" width="523.6875" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="en-us_topic_0034428718__fig1762807410259"><a name="en-us_topic_0034428718__fig1762807410259"></a><a name="fig1762807410259"></a><span class="figcap"><b>Figure 1 </b>Accessing SFS</span><br><span><img id="en-us_topic_0034428718__image99261148174814" src="en-us_image_0259710043.png" title="Click to enlarge" class="imgResize"></span></div>
<p id="en-us_topic_0034428718__p156381134201917"></p>
<p id="en-us_topic_0034428718__p8490406145"></p>
<div class="p" id="en-us_topic_0034428718__p9856144531015">Compared with traditional file sharing storage, SFS has the following advantages:<ul id="en-us_topic_0034428718__ul6856245171013"><li id="en-us_topic_0034428718__en-us_topic_0059757418_li42363120164311">File sharing<p id="en-us_topic_0034428718__en-us_topic_0059757418_p5170663164322"><a name="en-us_topic_0034428718__en-us_topic_0059757418_li42363120164311"></a><a name="en-us_topic_0059757418_li42363120164311"></a>Servers in multiple availability zones (AZs) of a same region can access the same file system concurrently and share files.</p>
</li><li id="en-us_topic_0034428718__en-us_topic_0059757418_li3575400164325">Elastic scaling<p id="en-us_topic_0034428718__p6421105621437"><a name="en-us_topic_0034428718__en-us_topic_0059757418_li3575400164325"></a><a name="en-us_topic_0059757418_li3575400164325"></a>Storage can be scaled up or down on demand to dynamically adapt to service changes without interrupting applications. You can complete resizing with a few clicks.</p>
</li><li id="en-us_topic_0034428718__en-us_topic_0059757418_li10245495164653">Superior performance<p id="en-us_topic_0034428718__p66109542214337"><a name="en-us_topic_0034428718__en-us_topic_0059757418_li10245495164653"></a><a name="en-us_topic_0059757418_li10245495164653"></a>SFS enables file system performance to increase as capacity grows, and it delivers a high data durability to support rapid service growth.</p>
<p id="en-us_topic_0034428718__p8547884414">The backend storage system supports both HDD and SSD storage media. It adopts a distributed architecture and uses full redundant design for modules, which eliminate single-node faults.</p>
<p id="en-us_topic_0034428718__p8547884414">The backend storage system supports HDD and SSD storage media. It adopts a distributed architecture and uses full redundant design for modules, eliminating single-node faults.</p>
</li><li id="en-us_topic_0034428718__en-us_topic_0059757418_li48777570165450">Seamless integration<p id="en-us_topic_0034428718__en-us_topic_0059757418_p48915676104816"><a name="en-us_topic_0034428718__en-us_topic_0059757418_li48777570165450"></a><a name="en-us_topic_0059757418_li48777570165450"></a>SFS supports Network File System (NFS). With this standard protocol, a broad range of mainstream applications can read and write data in the file system.</p>
</li><li id="en-us_topic_0034428718__li20856445181014">Easy operation<p id="en-us_topic_0034428718__p6856645161013"><a name="en-us_topic_0034428718__li20856445181014"></a><a name="li20856445181014"></a>In an intuitive graphical user interface (GUI), you can create and manage file systems with ease. </p>
</li></ul>
</div>
</div>
<div class="section" id="en-us_topic_0034428718__section85195351870"><h4 class="sectiontitle">Accessing SFS</h4><p id="en-us_topic_0034428718__p87556854319">You can access SFS on the management console or via APIs by sending HTTPS requests.</p>
<div class="section" id="en-us_topic_0034428718__section85195351870"><h4 class="sectiontitle">Accessing SFS</h4><p id="en-us_topic_0034428718__p87556854319">You can access SFS on the management console or through APIs by sending HTTPS requests.</p>
<ul id="en-us_topic_0034428718__ul147560817436"><li id="en-us_topic_0034428718__li87561681438">APIs<p id="en-us_topic_0034428718__p375613824311"><a name="en-us_topic_0034428718__li87561681438"></a><a name="li87561681438"></a>Use APIs if you need to integrate SFS into a third-party system for secondary development. For detailed operations, see <a href="https://docs.otc.t-systems.com/en-us/api/sfs/sfs_02_0001.html" target="_blank" rel="noopener noreferrer">Scalable File Service API Reference</a>.</p>
</li><li id="en-us_topic_0034428718__li1275610874315">Management console<p id="en-us_topic_0034428718__p3756118114319"><a name="en-us_topic_0034428718__li1275610874315"></a><a name="li1275610874315"></a>Use the console if you prefer a web-based UI to perform operations.</p>
</li></ul>

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<a name="en-us_topic_0105224109"></a><a name="en-us_topic_0105224109"></a>
<h1 class="topictitle1">Mounting an NFS File System to ECSs (Windows)</h1>
<div id="body1522759750532"><p id="en-us_topic_0105224109__p1357216251518">After creating a file system, you need to mount the file system to servers so that they can share the file system.</p>
<div id="body1522759750532"><p id="en-us_topic_0105224109__p1357216251518">After creating a file system, you need to mount the file system to cloud servers so that they can share the file system.</p>
<p id="en-us_topic_0105224109__p20048610145728">This section uses Windows Server 2012 as the example OS to describe how to mount an NFS file system. For other versions, perform the steps based on the actual situation.</p>
<p id="en-us_topic_0105224109__p14583144511397">In this section, ECSs are used as example servers. Operations on BMSs and containers (CCE) are the same as those on ECSs.</p>
<div class="section" id="en-us_topic_0105224109__section27225646153519"><h4 class="sectiontitle">Prerequisites</h4><ul id="en-us_topic_0105224109__ul22392394151035"><li id="en-us_topic_0105224109__li36708344151035">You have created a file system and have obtained the mount point of the file system.</li><li id="en-us_topic_0105224109__li41791988151146">At least one ECS that belongs to the same VPC as the file system exists.</li><li id="en-us_topic_0105224109__li56264424717">The IP address of the DNS server for resolving the domain names of the file systems has been configured on the ECS. For details, see <a href="sfs_01_0038.html">Configuring DNS</a>. SFS Turbo file systems do not require domain name resolution.</li></ul>
<div class="section" id="en-us_topic_0105224109__section27225646153519"><h4 class="sectiontitle">Prerequisites</h4><ul id="en-us_topic_0105224109__ul22392394151035"><li id="en-us_topic_0105224109__li36708344151035">You have created a file system and have obtained the mount point of the file system.</li><li id="en-us_topic_0105224109__li41791988151146">At least one ECS that is in the same VPC as the file system is available.</li><li id="en-us_topic_0105224109__li56264424717">The IP address of the DNS server for resolving the file system domain name has been configured on the ECS. For details, see <a href="sfs_01_0038.html">Configuring DNS</a>. SFS Turbo file systems do not require domain name resolution.</li></ul>
</div>
<div class="section" id="en-us_topic_0105224109__section1506173612291"><h4 class="sectiontitle">Limitations and Constraints</h4><p id="en-us_topic_0105224109__p1346011418488">SFS Turbo file systems cannot be mounted to Windows ECSs.</p>
<p id="en-us_topic_0105224109__p22157184377">General purpose file systems cannot be mounted to Windows ECSs.</p>
<div class="section" id="en-us_topic_0105224109__section1506173612291"><h4 class="sectiontitle">Constraints</h4><p id="en-us_topic_0105224109__p1346011418488">SFS Turbo file systems cannot be mounted to Windows ECSs.</p>
<p id="en-us_topic_0105224109__p22157184377">General purpose file systems cannot be mounted to Windows servers.</p>
</div>
<div class="section" id="en-us_topic_0105224109__section62423454145852"><h4 class="sectiontitle">Procedure</h4><ol id="en-us_topic_0105224109__ol41878263153942"><li id="en-us_topic_0105224109__li54621311946"><span>Log in to the management console using a cloud account.</span><p><ol type="a" id="en-us_topic_0105224109__ol1253112432049"><li id="en-us_topic_0105224109__li194621111413">Log in to the management console and select a region and a project.</li><li id="en-us_topic_0105224109__li1446216114413">Under <strong id="en-us_topic_0105224109__b1718619923010">Computing</strong>, click <strong id="en-us_topic_0105224109__b12191199153015">Elastic Cloud Server</strong> to switch to the ECS console.</li></ol>
</p></li><li id="en-us_topic_0105224109__li19554357153942"><span>Go to the ECS console and log in to the ECS running Windows Server 2012.</span></li><li id="en-us_topic_0105224109__li141987337144"><span>Install the NFS client.</span><p><ol type="a" id="en-us_topic_0105224109__ol398883644518"><li id="en-us_topic_0105224109__li1988163664519">Click <span class="uicontrol" id="en-us_topic_0105224109__uicontrol743494129145156"><b>Server Manager</b></span> in the lower left corner. The <span class="wintitle" id="en-us_topic_0105224109__wintitle269177511145225"><b>Server Manager</b></span> window is displayed, as shown in <a href="#en-us_topic_0105224109__fig5988173610457">Figure 1</a>.<div class="fignone" id="en-us_topic_0105224109__fig5988173610457"><a name="en-us_topic_0105224109__fig5988173610457"></a><a name="fig5988173610457"></a><span class="figcap"><b>Figure 1 </b>Server Manager</span><br><span><img id="en-us_topic_0105224109__image898817360457" src="en-us_image_0105365714.png" height="294.56667100000004" width="437.90250000000003" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="en-us_topic_0105224109__li9988193618453">Click <span class="uicontrol" id="en-us_topic_0105224109__uicontrol740474249145319"><b>Add Roles and Features</b></span>. See <a href="#en-us_topic_0105224109__fig598816362459">Figure 2</a>.<div class="fignone" id="en-us_topic_0105224109__fig598816362459"><a name="en-us_topic_0105224109__fig598816362459"></a><a name="fig598816362459"></a><span class="figcap"><b>Figure 2 </b>Wizard for adding roles and features</span><br><span><img id="en-us_topic_0105224109__image1698820364451" src="en-us_image_0105366557.png" height="311.652915" width="441.89250000000004" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="en-us_topic_0105224109__li1298873616453">Click <span class="uicontrol" id="en-us_topic_0105224109__uicontrol1211189454145535"><b>Next</b></span> as prompted. On the <span class="parmname" id="en-us_topic_0105224109__parmname601807044203711"><b>Server Roles</b></span> page, select <span class="parmname" id="en-us_topic_0105224109__parmname451318574203722"><b>Server for NFS</b></span>, as shown in <a href="#en-us_topic_0105224109__fig1998863615458">Figure 3</a>.<div class="fignone" id="en-us_topic_0105224109__fig1998863615458"><a name="en-us_topic_0105224109__fig1998863615458"></a><a name="fig1998863615458"></a><span class="figcap"><b>Figure 3 </b>Selecting the server for NFS</span><br><span><img id="en-us_topic_0105224109__image79889368450" src="en-us_image_0105369597.png" height="309.88135500000004" width="437.90250000000003" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="en-us_topic_0105224109__li15988163616458">Click <span class="uicontrol" id="en-us_topic_0105224109__uicontrol20638155020383"><b>Next</b></span>. In the <strong id="en-us_topic_0105224109__b0638175012380">Features</strong> page, select <span class="parmvalue" id="en-us_topic_0105224109__parmvalue186383506388"><b>Client for NFS</b></span> and click <span class="uicontrol" id="en-us_topic_0105224109__uicontrol46391950183810"><b>Next</b></span>, as shown in <a href="#en-us_topic_0105224109__fig398666640">Figure 4</a>. Confirm the settings and then click <span class="uicontrol" id="en-us_topic_0105224109__uicontrol149881936154519"><b>Install</b></span>. If you install the NFS client for the first time, after the installation is complete, restart the client and log in to the ECS again as prompted.<div class="fignone" id="en-us_topic_0105224109__fig398666640"><a name="en-us_topic_0105224109__fig398666640"></a><a name="fig398666640"></a><span class="figcap"><b>Figure 4 </b>Selecting the NFS client</span><br><span><img id="en-us_topic_0105224109__image181761358135715" src="en-us_image_0132330932.png" height="309.920989" width="438.5675" title="Click to enlarge" class="imgResize"></span></div>
<div class="section" id="en-us_topic_0105224109__section62423454145852"><h4 class="sectiontitle">Procedure</h4><ol id="en-us_topic_0105224109__ol41878263153942"><li id="en-us_topic_0105224109__li54621311946"><span>Log in to the management console using a cloud account.</span><p><ol type="a" id="en-us_topic_0105224109__ol1253112432049"><li id="en-us_topic_0105224109__li194621111413">Log in to the management console and select a region and a project.</li><li id="en-us_topic_0105224109__li1446216114413">Choose <strong id="en-us_topic_0105224109__b1693465041516">Compute</strong> &gt; <strong id="en-us_topic_0105224109__b59341950121515">Elastic Cloud Server</strong> to go to the ECS console.</li></ol>
</p></li><li id="en-us_topic_0105224109__li19554357153942"><span>On the ECS console, log in to the ECS running Windows Server 2012.</span></li><li id="en-us_topic_0105224109__li141987337144"><span>Install the NFS client.</span><p><ol type="a" id="en-us_topic_0105224109__ol398883644518"><li id="en-us_topic_0105224109__li1988163664519">Click <span class="uicontrol" id="en-us_topic_0105224109__uicontrol743494129145156"><b>Server Manager</b></span> in the lower left corner. The <span class="wintitle" id="en-us_topic_0105224109__wintitle269177511145225"><b>Server Manager</b></span> window is displayed, as shown in <a href="#en-us_topic_0105224109__fig5988173610457">Figure 1</a>.<div class="fignone" id="en-us_topic_0105224109__fig5988173610457"><a name="en-us_topic_0105224109__fig5988173610457"></a><a name="fig5988173610457"></a><span class="figcap"><b>Figure 1 </b>Server Manager</span><br><span><img id="en-us_topic_0105224109__image898817360457" src="en-us_image_0105365714.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="en-us_topic_0105224109__li9988193618453">Click <span class="uicontrol" id="en-us_topic_0105224109__uicontrol740474249145319"><b>Add Roles and Features</b></span>. See <a href="#en-us_topic_0105224109__fig598816362459">Figure 2</a>.<div class="fignone" id="en-us_topic_0105224109__fig598816362459"><a name="en-us_topic_0105224109__fig598816362459"></a><a name="fig598816362459"></a><span class="figcap"><b>Figure 2 </b>Wizard for adding roles and features</span><br><span><img id="en-us_topic_0105224109__image1698820364451" src="en-us_image_0105366557.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="en-us_topic_0105224109__li1298873616453">Click <span class="uicontrol" id="en-us_topic_0105224109__uicontrol1211189454145535"><b>Next</b></span> as prompted. On the <span class="parmname" id="en-us_topic_0105224109__parmname601807044203711"><b>Server Roles</b></span> page, select <span class="parmname" id="en-us_topic_0105224109__parmname451318574203722"><b>Server for NFS</b></span>, as shown in <a href="#en-us_topic_0105224109__fig1998863615458">Figure 3</a>.<div class="fignone" id="en-us_topic_0105224109__fig1998863615458"><a name="en-us_topic_0105224109__fig1998863615458"></a><a name="fig1998863615458"></a><span class="figcap"><b>Figure 3 </b>Selecting the server for NFS</span><br><span><img id="en-us_topic_0105224109__image79889368450" src="en-us_image_0105369597.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="en-us_topic_0105224109__li15988163616458">Click <span class="uicontrol" id="en-us_topic_0105224109__uicontrol20638155020383"><b>Next</b></span>. In the <strong id="en-us_topic_0105224109__b0638175012380">Features</strong> page, select <span class="parmvalue" id="en-us_topic_0105224109__parmvalue186383506388"><b>Client for NFS</b></span> and click <span class="uicontrol" id="en-us_topic_0105224109__uicontrol46391950183810"><b>Next</b></span>, as shown in <a href="#en-us_topic_0105224109__fig398666640">Figure 4</a>. Confirm the settings and then click <span class="uicontrol" id="en-us_topic_0105224109__uicontrol149881936154519"><b>Install</b></span>. If you install the NFS client for the first time, after the installation is complete, restart the client and log in to the ECS again as prompted.<div class="fignone" id="en-us_topic_0105224109__fig398666640"><a name="en-us_topic_0105224109__fig398666640"></a><a name="fig398666640"></a><span class="figcap"><b>Figure 4 </b>Selecting the NFS client</span><br><span><img id="en-us_topic_0105224109__image181761358135715" src="en-us_image_0132330932.png" title="Click to enlarge" class="imgResize"></span></div>
</li></ol>
</p></li><li id="en-us_topic_0105224109__li1511843716152"><span>Modify the NFS transfer protocol.</span><p><ol type="a" id="en-us_topic_0105224109__ol173894415454"><li id="en-us_topic_0105224109__li1873824454520">Choose <span class="menucascade" id="en-us_topic_0105224109__menucascade886066273203826"><b><span class="uicontrol" id="en-us_topic_0105224109__uicontrol1279895233203826">Control Panel &gt; System and Security &gt; Administrative Tools &gt; Services for Network File System (NFS)</span></b></span>, as shown in <a href="#en-us_topic_0105224109__fig773834418456">Figure 5</a>.<div class="fignone" id="en-us_topic_0105224109__fig773834418456"><a name="en-us_topic_0105224109__fig773834418456"></a><a name="fig773834418456"></a><span class="figcap"><b>Figure 5 </b>Administrative tools</span><br><span><img id="en-us_topic_0105224109__image7738944134520" src="en-us_image_0105371941.png" height="329.01141" width="470.82000000000005" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="en-us_topic_0105224109__li19738944194515">Right-click <strong id="en-us_topic_0105224109__b842352706151017">Client for NFS</strong>, choose <span class="parmvalue" id="en-us_topic_0105224109__parmvalue590719518151028"><b>Properties</b></span>, change the transport protocol to <span class="uicontrol" id="en-us_topic_0105224109__uicontrol1845173629151115"><b>TCP</b></span>, and select <span class="parmvalue" id="en-us_topic_0105224109__parmvalue2027339231151141"><b>Use hard mounts</b></span>, as shown in <a href="#en-us_topic_0105224109__fig47381445453">Figure 6</a> and <a href="#en-us_topic_0105224109__fig8738344144513">Figure 7</a>.<div class="fignone" id="en-us_topic_0105224109__fig47381445453"><a name="en-us_topic_0105224109__fig47381445453"></a><a name="fig47381445453"></a><span class="figcap"><b>Figure 6 </b>Services for NFS</span><br><span><img id="en-us_topic_0105224109__image273834424517" src="en-us_image_0105373154.png" height="148.33224" width="464.83500000000004" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="en-us_topic_0105224109__fig8738344144513"><a name="en-us_topic_0105224109__fig8738344144513"></a><a name="fig8738344144513"></a><span class="figcap"><b>Figure 7 </b>Client for NFS properties</span><br><span><img id="en-us_topic_0105224109__image12738164418459" src="en-us_image_0105374234.png" width="388.02750000000003" height="490.90765500000003" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="en-us_topic_0105224109__li1511843716152"><span>Modify the NFS transfer protocol.</span><p><ol type="a" id="en-us_topic_0105224109__ol173894415454"><li id="en-us_topic_0105224109__li1873824454520">Choose <span class="menucascade" id="en-us_topic_0105224109__menucascade886066273203826"><b><span class="uicontrol" id="en-us_topic_0105224109__uicontrol1279895233203826">Control Panel &gt; System and Security &gt; Administrative Tools &gt; Services for Network File System (NFS)</span></b></span>, as shown in <a href="#en-us_topic_0105224109__fig773834418456">Figure 5</a>.<div class="fignone" id="en-us_topic_0105224109__fig773834418456"><a name="en-us_topic_0105224109__fig773834418456"></a><a name="fig773834418456"></a><span class="figcap"><b>Figure 5 </b>Administrative tools</span><br><span><img id="en-us_topic_0105224109__image7738944134520" src="en-us_image_0105371941.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="en-us_topic_0105224109__li19738944194515">Right-click <strong id="en-us_topic_0105224109__b842352706151017">Client for NFS</strong>, choose <span class="parmvalue" id="en-us_topic_0105224109__parmvalue590719518151028"><b>Properties</b></span>, change the transport protocol to <span class="uicontrol" id="en-us_topic_0105224109__uicontrol1845173629151115"><b>TCP</b></span>, and select <span class="parmvalue" id="en-us_topic_0105224109__parmvalue2027339231151141"><b>Use hard mounts</b></span>, as shown in <a href="#en-us_topic_0105224109__fig47381445453">Figure 6</a> and <a href="#en-us_topic_0105224109__fig8738344144513">Figure 7</a>.<div class="fignone" id="en-us_topic_0105224109__fig47381445453"><a name="en-us_topic_0105224109__fig47381445453"></a><a name="fig47381445453"></a><span class="figcap"><b>Figure 6 </b>Services for NFS</span><br><span><img id="en-us_topic_0105224109__image273834424517" src="en-us_image_0105373154.png" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="en-us_topic_0105224109__fig8738344144513"><a name="en-us_topic_0105224109__fig8738344144513"></a><a name="fig8738344144513"></a><span class="figcap"><b>Figure 7 </b>Client for NFS properties</span><br><span><img id="en-us_topic_0105224109__image12738164418459" src="en-us_image_0105374234.png" title="Click to enlarge" class="imgResize"></span></div>
</li></ol>
</p></li><li id="en-us_topic_0105224109__li11799368404"><span>Check that the IP address of the DNS server for resolving the domain names of the file systems has been configured on the ECS before mounting the file system. For details, see <a href="sfs_01_0038.html">Configuring DNS</a>. SFS Turbo file systems do not require domain name resolution.</span></li><li id="en-us_topic_0105224109__li2998141114418"><span>Run the following command in the Command Prompt of the Windows Server 2012 (<strong id="en-us_topic_0105224109__b842352706163048">X</strong> is the drive letter of the free disk). Select the ECS that belongs to the same VPC as the file system to mount the file system.</span><p><p id="en-us_topic_0105224109__p118411845448">For SFS Capacity-Oriented file systems: <strong id="en-us_topic_0105224109__b1789818474289">mount -o nolock</strong> <i><span class="varname" id="en-us_topic_0105224109__varname1561544174314">mount point</span></i> <strong id="en-us_topic_0105224109__b26851335204411">X:</strong></p>
</p></li><li id="en-us_topic_0105224109__li11799368404"><span>Check that the IP address of the DNS server for resolving the domain names of the file systems has been configured on the ECS before mounting the file system. For details, see <a href="sfs_01_0038.html">Configuring DNS</a>. SFS Turbo file systems do not require domain name resolution.</span></li><li id="en-us_topic_0105224109__li2998141114418"><span>Run the following command in the Command Prompt of the Windows Server 2012 (<strong id="en-us_topic_0105224109__b842352706163048">X</strong> is the drive letter of the free disk). Select the ECS that is in the same VPC as the file system to mount the file system.</span><p><p id="en-us_topic_0105224109__p118411845448">For SFS Capacity-Oriented file systems: <strong id="en-us_topic_0105224109__b1789818474289">mount -o nolock</strong> <i><span class="varname" id="en-us_topic_0105224109__varname1561544174314">Mount point</span></i> <strong id="en-us_topic_0105224109__b26851335204411">X:</strong></p>
<div class="note" id="en-us_topic_0105224109__note1263265145716"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="en-us_topic_0105224109__ul11123328183619"><li id="en-us_topic_0105224109__li10123928123619">Free drive letter of the disk: A drive letter that is not in use, such as drive letter E or X.</li></ul>
</div></div>
<p id="en-us_topic_0105224109__p56717517433">You can move the cursor to the mount point and click <span><img id="en-us_topic_0105224109__image11547176344" src="en-us_image_0110722360.png"></span> next to the mount point to copy the mount point. For details, see <a href="#en-us_topic_0105224109__fig212663513297">Figure 8</a>. If the information shown in <a href="#en-us_topic_0105224109__fig13957194774517">Figure 9</a> is displayed, the mounting is successful.</p>
<div class="p" id="en-us_topic_0105224109__p176289615151"><div class="fignone" id="en-us_topic_0105224109__fig212663513297"><a name="en-us_topic_0105224109__fig212663513297"></a><a name="fig212663513297"></a><span class="figcap"><b>Figure 8 </b>Mount point</span><br><span><img id="en-us_topic_0105224109__image21661376449" src="en-us_image_0251323172.png" width="515.7075" height="24.434627000000003" title="Click to enlarge" class="imgResize"></span></div>
<p id="en-us_topic_0105224109__p56717517433">You can move the cursor to the mount point and click <span><img id="en-us_topic_0105224109__image272182511495" src="en-us_image_0110722360.png"></span> next to the mount point to copy it. For details, see <a href="#en-us_topic_0105224109__fig212663513297">Figure 8</a>. If the information shown in <a href="#en-us_topic_0105224109__fig13957194774517">Figure 9</a> is displayed, the mount is successful.</p>
<div class="p" id="en-us_topic_0105224109__p176289615151"><div class="fignone" id="en-us_topic_0105224109__fig212663513297"><a name="en-us_topic_0105224109__fig212663513297"></a><a name="fig212663513297"></a><span class="figcap"><b>Figure 8 </b>Mount point</span><br><span><img id="en-us_topic_0105224109__image21661376449" src="en-us_image_0251323172.png" title="Click to enlarge" class="imgResize"></span></div>
</div>
<div class="p" id="en-us_topic_0105224109__p777545651710"><div class="fignone" id="en-us_topic_0105224109__fig13957194774517"><a name="en-us_topic_0105224109__fig13957194774517"></a><a name="fig13957194774517"></a><span class="figcap"><b>Figure 9 </b>Running the command</span><br><span><img id="en-us_topic_0105224109__image108015531742" src="en-us_image_0105396156.png" height="156.706186" width="500.745" title="Click to enlarge" class="imgResize"></span></div>
<div class="p" id="en-us_topic_0105224109__p777545651710"><div class="fignone" id="en-us_topic_0105224109__fig13957194774517"><a name="en-us_topic_0105224109__fig13957194774517"></a><a name="fig13957194774517"></a><span class="figcap"><b>Figure 9 </b>Running the command</span><br><span><img id="en-us_topic_0105224109__image108015531742" src="en-us_image_0105396156.png" title="Click to enlarge" class="imgResize"></span></div>
</div>
<p id="en-us_topic_0105224109__p19670155261716"></p>
</p></li><li id="en-us_topic_0105224109__li15113154510119"><span>After the file system is mounted successfully, you can view the mounted file system on the <strong id="en-us_topic_0105224109__b842352706204058">This PC</strong> window, as shown in <a href="#en-us_topic_0105224109__fig1120010188467">Figure 10</a>.</span><p><p id="en-us_topic_0105224109__p1455315205445">If the mounting fails or times out, rectify the fault by referring to <a href="sfs_01_0056.html">Troubleshooting</a>.</p>
<div class="fignone" id="en-us_topic_0105224109__fig1120010188467"><a name="en-us_topic_0105224109__fig1120010188467"></a><a name="fig1120010188467"></a><span class="figcap"><b>Figure 10 </b>Successful mounting</span><br><span><img id="en-us_topic_0105224109__image17200141815461" src="en-us_image_0108360730.png" height="371.93077600000004" width="496.75500000000005" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="en-us_topic_0105224109__fig1120010188467"><a name="en-us_topic_0105224109__fig1120010188467"></a><a name="fig1120010188467"></a><span class="figcap"><b>Figure 10 </b>Successful mounting</span><br><span><img id="en-us_topic_0105224109__image17200141815461" src="en-us_image_0108360730.png" title="Click to enlarge" class="imgResize"></span></div>
<div class="note" id="en-us_topic_0105224109__note152733591863"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="en-us_topic_0105224109__p5273195910614">To distinguish different file systems mounted on an ECS, you can rename file systems by right-clicking a file system and choose <strong id="en-us_topic_0105224109__b19899115013453">Rename</strong>.</p>
</div></div>
</p></li></ol>
</div>
<div class="section" id="en-us_topic_0105224109__section20621820194812"><h4 class="sectiontitle">Troubleshooting</h4><p id="en-us_topic_0105224109__p9531232282">If a file system is mounted to a Linux ECS and a Windows ECS, on the Windows ECS, data cannot be written to the files created by the Linux ECS. To address this problem, modify the registry and change both UID and GID values to <strong id="en-us_topic_0105224109__b88161611191519">0</strong> for NFS accesses from Windows. This section uses Windows Server 2012 as an example. Do as follows:</p>
<ol id="en-us_topic_0105224109__ol72411939145517"><li id="en-us_topic_0105224109__li20433184204620"><span>Choose <strong id="en-us_topic_0105224109__b67171946141716">Start</strong> &gt; <strong id="en-us_topic_0105224109__b16515549171720">Run</strong> and enter <strong id="en-us_topic_0105224109__b10829185771713">regedit</strong> to open the registry.</span></li><li id="en-us_topic_0105224109__li1043314194613"><span>Enter the <strong id="en-us_topic_0105224109__b09006111198">HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ClientForNFS\CurrentVersion\Default</strong> directory. See <a href="#en-us_topic_0105224109__fig103481655182917">Figure 11</a>.</span><p><div class="fignone" id="en-us_topic_0105224109__fig103481655182917"><a name="en-us_topic_0105224109__fig103481655182917"></a><a name="fig103481655182917"></a><span class="figcap"><b>Figure 11 </b>Entering the directory</span><br><span><img id="en-us_topic_0105224109__image20363185511292" src="en-us_image_0132187564.png" height="372.0675" width="523.6875" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="en-us_topic_0105224109__li174331745467"><span>Right-click the blank area and choose <strong id="en-us_topic_0105224109__b1724322342312">New</strong> &gt; <strong id="en-us_topic_0105224109__b1138016269234">DWORD Value</strong> from the shortcut menu. Set <strong id="en-us_topic_0105224109__b8136113715239">AnonymousUid</strong> and <strong id="en-us_topic_0105224109__b7964240182315">AnonymousGid</strong> to <strong id="en-us_topic_0105224109__b11352161619813">0</strong>. <a href="#en-us_topic_0105224109__fig56963212379">Figure 12</a> shows a successful operation.</span><p><div class="fignone" id="en-us_topic_0105224109__fig56963212379"><a name="en-us_topic_0105224109__fig56963212379"></a><a name="fig56963212379"></a><span class="figcap"><b>Figure 12 </b>Adding values</span><br><span><img id="en-us_topic_0105224109__image136943293716" src="en-us_image_0132187573.png" width="NaN" height="NaN"></span></div>
<div class="section" id="en-us_topic_0105224109__section20621820194812"><h4 class="sectiontitle">Troubleshooting</h4><p id="en-us_topic_0105224109__p9531232282">If a file system is mounted to a Linux ECS and a Windows ECS, on the Windows ECS, you cannot write data to the files created by the Linux ECS. To address this problem, modify the registry and change both UID and GID values to <strong id="en-us_topic_0105224109__b88161611191519">0</strong> for NFS accesses from Windows. This section uses Windows Server 2012 as an example. Do as follows:</p>
<ol id="en-us_topic_0105224109__ol72411939145517"><li id="en-us_topic_0105224109__li20433184204620"><span>Choose <strong id="en-us_topic_0105224109__b67171946141716">Start</strong> &gt; <strong id="en-us_topic_0105224109__b16515549171720">Run</strong> and enter <strong id="en-us_topic_0105224109__b10829185771713">regedit</strong> to open the registry.</span></li><li id="en-us_topic_0105224109__li1043314194613"><span>Enter the <strong id="en-us_topic_0105224109__b09006111198">HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ClientForNFS\CurrentVersion\Default</strong> directory. See <a href="#en-us_topic_0105224109__fig103481655182917">Figure 11</a>.</span><p><div class="fignone" id="en-us_topic_0105224109__fig103481655182917"><a name="en-us_topic_0105224109__fig103481655182917"></a><a name="fig103481655182917"></a><span class="figcap"><b>Figure 11 </b>Entering the directory</span><br><span><img id="en-us_topic_0105224109__image20363185511292" src="en-us_image_0132187564.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="en-us_topic_0105224109__li174331745467"><span>Right-click the blank area and choose <strong id="en-us_topic_0105224109__b1724322342312">New</strong> &gt; <strong id="en-us_topic_0105224109__b1138016269234">DWORD Value</strong> from the shortcut menu. Set <strong id="en-us_topic_0105224109__b8136113715239">AnonymousUid</strong> and <strong id="en-us_topic_0105224109__b7964240182315">AnonymousGid</strong> to <strong id="en-us_topic_0105224109__b11352161619813">0</strong>. <a href="#en-us_topic_0105224109__fig56963212379">Figure 12</a> shows a successful operation.</span><p><div class="fignone" id="en-us_topic_0105224109__fig56963212379"><a name="en-us_topic_0105224109__fig56963212379"></a><a name="fig56963212379"></a><span class="figcap"><b>Figure 12 </b>Adding values</span><br><span><img id="en-us_topic_0105224109__image136943293716" src="en-us_image_0132187573.png"></span></div>
</p></li><li id="en-us_topic_0105224109__li1164115551812"><span>After modifying the registry, restart the server for the modification to take effect.</span></li></ol>
</div>
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<p id="sfs_01_0002__en-us_topic_0184026189_p1479174514614"><a href="#sfs_01_0002__en-us_topic_0184026189_fig8747114281212">Figure 1</a> shows the relationship between regions and AZs.</p>
<div class="fignone" id="sfs_01_0002__en-us_topic_0184026189_fig8747114281212"><a name="sfs_01_0002__en-us_topic_0184026189_fig8747114281212"></a><a name="en-us_topic_0184026189_fig8747114281212"></a><span class="figcap"><b>Figure 1 </b>Regions and AZs</span><br><span><img class="vsd" id="sfs_01_0002__en-us_topic_0184026189_image12748194211128" src="en-us_image_0184026531.png"></span></div>
</div>
<div class="section" id="sfs_01_0002__en-us_topic_0184026189_section67281149192216"><h4 class="sectiontitle">Selecting a Region</h4><p id="sfs_01_0002__en-us_topic_0184026189_p68521454132212">Select a region closest to your target users for lower network latency and quick access.</p>
<div class="section" id="sfs_01_0002__en-us_topic_0184026189_section67281149192216"><h4 class="sectiontitle">Selecting a Region</h4><p id="sfs_01_0002__en-us_topic_0184026189_p68521454132212">You are advised to select a region close to you or your target users. This helps ensure low access latency.</p>
</div>
<div class="section" id="sfs_01_0002__en-us_topic_0184026189_section193971112578"><h4 class="sectiontitle">Selecting an AZ</h4><p id="sfs_01_0002__en-us_topic_0184026189_p859161416717">When deploying resources, consider your applications' requirements on disaster recovery (DR) and network latency.</p>
<ul id="sfs_01_0002__en-us_topic_0184026189_ul157203571473"><li id="sfs_01_0002__en-us_topic_0184026189_li7720175710711">For high DR capability, deploy resources in different AZs within the same region.</li><li id="sfs_01_0002__en-us_topic_0184026189_li109763595719">For lower network latency, deploy resources in the same AZ.</li></ul>

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</li></ul>
</div>
<div class="section" id="sfs_01_0004__section7918205164811"><h4 class="sectiontitle">SFS Turbo</h4><p id="sfs_01_0004__p155636921919">Expandable to 32 TB, SFS Turbo provides fully hosted shared file storage. It features high availability and durability to support massive small files and applications requiring low latency and high IOPS. SFS Turbo is perfect to scenarios such as high-performance websites, log storage, compression and decompression, DevOps, enterprise offices, and container applications.</p>
<ul id="sfs_01_0004__ul167202016223"><li id="sfs_01_0004__li1842223822214">High-performance websites<p id="sfs_01_0004__p9631399225"><a name="sfs_01_0004__li1842223822214"></a><a name="li1842223822214"></a>For I/O-intensive website services, SFS Turbo can provide shared website source code directories for multiple web servers, enabling low-latency and high-IOPS concurrent share access.</p>
<ul id="sfs_01_0004__ul167202016223"><li id="sfs_01_0004__li1842223822214">High-performance websites<p id="sfs_01_0004__p9631399225"><a name="sfs_01_0004__li1842223822214"></a><a name="li1842223822214"></a>For I/O-intensive website services, SFS Turbo can provide shared website source code directories for multiple web servers, enabling low-latency and high-IOPS concurrent shared access.</p>
</li></ul>
<ul id="sfs_01_0004__ul17968161819221"><li id="sfs_01_0004__li19391233182217">Log storage<p id="sfs_01_0004__p1392293414225"><a name="sfs_01_0004__li19391233182217"></a><a name="li19391233182217"></a>SFS Turbo can provide multiple service nodes for shared log output directories, facilitating log collection and management of distributed applications.</p>
<ul id="sfs_01_0004__ul17968161819221"><li id="sfs_01_0004__li19391233182217">Log storage<p id="sfs_01_0004__p1392293414225"><a name="sfs_01_0004__li19391233182217"></a><a name="li19391233182217"></a>SFS Turbo can provide shared log output directories for multiple service nodes, facilitating log collection and management of distributed applications.</p>
</li></ul>
<ul id="sfs_01_0004__ul49854235221"><li id="sfs_01_0004__li4203204216226">DevOps<p id="sfs_01_0004__p106401642112219"><a name="sfs_01_0004__li4203204216226"></a><a name="li4203204216226"></a>The development directory can be shared to multiple VMs or containers, simplifying the configuration process and improving R&amp;D experience.</p>
<ul id="sfs_01_0004__ul49854235221"><li id="sfs_01_0004__li4203204216226">DevOps<p id="sfs_01_0004__p106401642112219"><a name="sfs_01_0004__li4203204216226"></a><a name="li4203204216226"></a>The development directory can be shared with multiple VMs or containers, which simplifies the configuration process and improves R&amp;D experience.</p>
</li></ul>
<ul id="sfs_01_0004__ul7859192522215"><li id="sfs_01_0004__li6471468222">Enterprise offices<p id="sfs_01_0004__p1931194782219"><a name="sfs_01_0004__li6471468222"></a><a name="li6471468222"></a>Office documents of enterprises or organizations can be saved in an SFS Turbo file system for high-performance shared access.</p>
<ul id="sfs_01_0004__ul7859192522215"><li id="sfs_01_0004__li6471468222">Enterprise OA<p id="sfs_01_0004__p1931194782219"><a name="sfs_01_0004__li6471468222"></a><a name="li6471468222"></a>Office documents of enterprises or organizations can be saved in an SFS Turbo file system for high-performance shared access.</p>
</li></ul>
</div>
</div>

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<td class="cellrowborder" valign="top" width="65.53999999999999%" headers="mcps1.3.3.2.2.3.1.2 "><p id="sfs_01_0005__p87792023162215">Large capacity, high bandwidth, and low cost</p>
</td>
</tr>
<tr id="sfs_01_0005__row1568483211153"><td class="cellrowborder" valign="top" width="34.46%" headers="mcps1.3.3.2.2.3.1.1 "><p id="sfs_01_0005__p146848329151">Application Scenarios</p>
<tr id="sfs_01_0005__row1568483211153"><td class="cellrowborder" valign="top" width="34.46%" headers="mcps1.3.3.2.2.3.1.1 "><p id="sfs_01_0005__p146848329151">Application scenarios</p>
</td>
<td class="cellrowborder" valign="top" width="65.53999999999999%" headers="mcps1.3.3.2.2.3.1.2 "><p id="sfs_01_0005__p577912322218">Cost-sensitive workloads which require large-capacity scalability, such as media processing, file sharing, HPC, and data backup. For workloads dealing with massive small files, SFS Turbo is recommended.</p>
</td>
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<td class="cellrowborder" valign="top" width="67.36%" headers="mcps1.3.4.2.2.3.1.2 "><p id="sfs_01_0005__p8639141923413">Large capacity, high bandwidth, and low cost</p>
</td>
</tr>
<tr id="sfs_01_0005__row1563971910343"><td class="cellrowborder" valign="top" width="32.64%" headers="mcps1.3.4.2.2.3.1.1 "><p id="sfs_01_0005__p196392192349">Application Scenarios</p>
<tr id="sfs_01_0005__row1563971910343"><td class="cellrowborder" valign="top" width="32.64%" headers="mcps1.3.4.2.2.3.1.1 "><p id="sfs_01_0005__p196392192349">Application scenarios</p>
</td>
<td class="cellrowborder" valign="top" width="67.36%" headers="mcps1.3.4.2.2.3.1.2 "><p id="sfs_01_0005__p3640141923417">Cost-sensitive workloads which require large-capacity scalability, such as media processing, file sharing, high-performance computing, and data backup. For workloads dealing with massive small files, SFS Turbo is recommended.</p>
</td>
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<div class="section" id="sfs_01_0005__section159614873412"><h4 class="sectiontitle">SFS Turbo</h4>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="sfs_01_0005__table18896921124011" frame="border" border="1" rules="all"><caption><b>Table 3 </b>SFS Turbo file systems</caption><tbody><tr id="sfs_01_0005__row15896202118403"><td class="cellrowborder" valign="top" width="14.2985701429857%"><p id="sfs_01_0005__p389732120408"><strong id="sfs_01_0005__b98110524180">Parameter</strong></p>
</td>
<td class="cellrowborder" valign="top" width="17.078292170782923%"><p id="sfs_01_0005__p10897142110409"><strong id="sfs_01_0005__b18848191922711">20 MB/s/TiB</strong></p>
<td class="cellrowborder" valign="top" width="17.078292170782923%"><p id="sfs_01_0005__p10897142110409"><strong id="sfs_01_0005__b1310289929">20 MB/s/TiB</strong></p>
</td>
<td class="cellrowborder" valign="top" width="21.047895210478952%"><p id="sfs_01_0005__p138971721204014"><strong id="sfs_01_0005__b87710328489">40 MB/s/TiB</strong></p>
<td class="cellrowborder" valign="top" width="21.047895210478952%"><p id="sfs_01_0005__p138971721204014"><strong id="sfs_01_0005__b596618023">40 MB/s/TiB</strong></p>
</td>
<td class="cellrowborder" valign="top" width="25.11748825117488%"><p id="sfs_01_0005__p7897132117405"><strong id="sfs_01_0005__b113461256193410">125 MB/s/TiB</strong></p>
<td class="cellrowborder" valign="top" width="25.11748825117488%"><p id="sfs_01_0005__p7897132117405"><strong id="sfs_01_0005__b499755399">125 MB/s/TiB</strong></p>
</td>
<td class="cellrowborder" valign="top" width="22.457754224577542%"><p id="sfs_01_0005__p108971621154020"><strong id="sfs_01_0005__b15822102322716">250 MB/s/TiB</strong></p>
</td>
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<td class="cellrowborder" valign="top" width="22.457754224577542%"><p id="sfs_01_0005__p85154816357">1 million</p>
</td>
</tr>
<tr id="sfs_01_0005__row1689913212408"><td class="cellrowborder" valign="top" width="14.2985701429857%"><p id="sfs_01_0005__p1989962119405">Single-queue, 4 KB latency</p>
<tr id="sfs_01_0005__row1689913212408"><td class="cellrowborder" valign="top" width="14.2985701429857%"><p id="sfs_01_0005__p1989962119405">Single-queue, 4 KiB latency</p>
</td>
<td class="cellrowborder" valign="top" width="17.078292170782923%"><p id="sfs_01_0005__p1526817578351">2–5 ms</p>
</td>
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</table>
</div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="sfs_01_0005__table1097186343" frame="border" border="1" rules="all"><caption><b>Table 4 </b>Previous-generation SFS Turbo file systems</caption><tbody><tr id="sfs_01_0005__row139813813345"><td class="cellrowborder" valign="top" width="14.469999999999999%"><p id="sfs_01_0005__p79815815349"><strong id="sfs_01_0005__b156078490">Parameter</strong></p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="sfs_01_0005__table1097186343" frame="border" border="1" rules="all"><caption><b>Table 4 </b>Previous-generation SFS Turbo file systems</caption><tbody><tr id="sfs_01_0005__row139813813345"><td class="cellrowborder" valign="top" width="14.469999999999999%"><p id="sfs_01_0005__p79815815349"><strong id="sfs_01_0005__b97286475196">Parameter</strong></p>
</td>
<td class="cellrowborder" valign="top" width="17.32%"><p id="sfs_01_0005__p1468353311201"><strong id="sfs_01_0005__b1275955683">Standard</strong></p>
<td class="cellrowborder" valign="top" width="17.32%"><p id="sfs_01_0005__p1468353311201"><strong id="sfs_01_0005__b7664498195">Standard</strong></p>
</td>
<td class="cellrowborder" valign="top" width="20.830000000000002%"><p id="sfs_01_0005__p568383319207"><strong id="sfs_01_0005__b270685239">Standard-Enhanced</strong></p>
<td class="cellrowborder" valign="top" width="20.830000000000002%"><p id="sfs_01_0005__p568383319207"><strong id="sfs_01_0005__b33595011913">Standard-Enhanced</strong></p>
</td>
<td class="cellrowborder" valign="top" width="25.06%"><p id="sfs_01_0005__p1368373302017"><strong id="sfs_01_0005__b1129154929">Performance</strong></p>
<td class="cellrowborder" valign="top" width="25.06%"><p id="sfs_01_0005__p1368373302017"><strong id="sfs_01_0005__b130351141914">Performance</strong></p>
</td>
<td class="cellrowborder" valign="top" width="22.32%"><p id="sfs_01_0005__p106831333172014"><strong id="sfs_01_0005__b999372369">Performance-Enhanced</strong></p>
<td class="cellrowborder" valign="top" width="22.32%"><p id="sfs_01_0005__p106831333172014"><strong id="sfs_01_0005__b135035281910">Performance-Enhanced</strong></p>
</td>
</tr>
<tr id="sfs_01_0005__row9981880344"><td class="cellrowborder" valign="top" width="14.469999999999999%"><p id="sfs_01_0005__p159819810344">Max. bandwidth</p>
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<td class="cellrowborder" valign="top" width="22.32%"><p id="sfs_01_0005__p11741135623514">100,000</p>
</td>
</tr>
<tr id="sfs_01_0005__row29814843410"><td class="cellrowborder" valign="top" width="14.469999999999999%"><p id="sfs_01_0005__p18981813346">Single-queue, 4 KB latency</p>
<tr id="sfs_01_0005__row29814843410"><td class="cellrowborder" valign="top" width="14.469999999999999%"><p id="sfs_01_0005__p18981813346">Single-queue, 4 KiB latency</p>
</td>
<td class="cellrowborder" valign="top" width="17.32%"><p id="sfs_01_0005__p20573145365116">2–5 ms</p>
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<a name="sfs_01_0006"></a><a name="sfs_01_0006"></a>
<h1 class="topictitle1">File System Encryption</h1>
<div id="body1524470302967"><p id="sfs_01_0006__p9523869317">SFS provides you with the encryption function. You can encrypt data on the new file systems if needed.</p>
<p id="sfs_01_0006__p20892053222931">Keys for encrypting file systems are provided by Key Management Service (KMS), which is secure and convenient. You do not need to establish and maintain key management infrastructure. If you want to use your own key material, use the key import function on the KMS console to create a custom key whose key material is empty and import the key material to the custom key. For details, see section "Importing Key Materials" in <i><cite id="sfs_01_0006__cite1583013510512">Key Management Service User Guide</cite></i>.</p>
<div id="body1524470302967"><p id="sfs_01_0006__p9523869317">SFS provides you with the encryption function. You can encrypt data on newly created file systems if needed.</p>
<p id="sfs_01_0006__p20892053222931">Keys for encrypting file systems are provided by Key Management Service (KMS), which is secure and convenient. You do not need to establish and maintain key management infrastructure. If you want to use your own key material, use the key import function on the KMS console to create a custom key whose key material is empty and import the key material to the custom key. For details, see section "Importing Key Materials" in <i><cite id="sfs_01_0006__cite56651322183514">Key Management Service User Guide</cite></i>.</p>
<p id="sfs_01_0006__p15712723111414">To use the file system encryption function, you need to authorize SFS Capacity-Oriented to access KMS when creating an SFS Capacity-Oriented file system. SFS Turbo file systems do not need authorization.</p>
<div class="section" id="sfs_01_0006__section17331463223115"><h4 class="sectiontitle">Encryption Key</h4><p id="sfs_01_0006__p44297599103525">Keys provided by KMS for encrypting SFS Capacity-Oriented file systems include a default key and custom keys.</p>
<ul id="sfs_01_0006__ul45608657103527"><li id="sfs_01_0006__li8932708103730">Default key: SFS automatically creates a default key and names it <strong id="sfs_01_0006__b842352706131228">sfs/default</strong>.<p id="sfs_01_0006__p57444550103731">The default key cannot be disabled and does not support scheduled deletion.</p>

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</td>
<td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.1.2.2.4.1.2 "><p id="sfs_01_0007__p1783219820302">Elastic Cloud Server (ECS)</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.2.2.4.1.3 "><p id="sfs_01_0007__p119861917519"><a href="sfs_01_1001.html">Mounting an NFS File System to ECSs (Linux)</a></p>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.1.2.2.4.1.3 "><p id="sfs_01_0007__p119861917519"><a href="en-us_topic_0034428728.html">Mounting an NFS File System to ECSs (Linux)</a></p>
<p id="sfs_01_0007__p12439185014525"><a href="en-us_topic_0105224109.html">Mounting an NFS File System to ECSs (Windows)</a></p>
</td>
</tr>
<tr id="sfs_01_0007__row0832484307"><td class="cellrowborder" valign="top" width="49%" headers="mcps1.3.1.2.2.4.1.1 "><p id="sfs_01_0007__p1520012484238">VPC provisions an isolated virtual network environment defined and managed by yourself, improving the security of cloud resources and simplifying network deployment.</p>
<p id="sfs_01_0007__p840082141914">A server cannot access file systems in a different VPC. Before using SFS, assign the file system and the servers to the same VPC.</p>
<tr id="sfs_01_0007__row0832484307"><td class="cellrowborder" valign="top" width="49%" headers="mcps1.3.1.2.2.4.1.1 "><p id="sfs_01_0007__p1520012484238">A VPC enables you to provision logically isolated, configurable, and manageable virtual networks for ECSs, improving the security of cloud resources and simplifying network deployment.</p>
<p id="sfs_01_0007__p840082141914">A server cannot access file systems in a different VPC. Before using SFS, ensure that the file system and the servers are in the same VPC.</p>
</td>
<td class="cellrowborder" valign="top" width="26%" headers="mcps1.3.1.2.2.4.1.2 "><p id="sfs_01_0007__p148328863017">Virtual Private Cloud (VPC)</p>
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<div class="section" id="sfs_01_0011__section9992175114314"><h4 class="sectiontitle">SFS Capacity-Oriented</h4><ul id="sfs_01_0011__ul628417420569"><li id="sfs_01_0011__li18568161752215">SFS Capacity-Oriented can be accessed only on the intranet and used only on the cloud.</li></ul>
<ul id="sfs_01_0011__ul1190751720222"><li id="sfs_01_0011__li17907717192212">Only NFSv3 is supported (NFSv4 is not supported).</li><li id="sfs_01_0011__li17908717112212">A maximum of 10,000 compute nodes can be mounted to and access a single file system at the same time.</li><li id="sfs_01_0011__li760312110239">The maximum capacity of a single file system is 2 PB, and that of a single file is 240 TB.</li><li id="sfs_01_0011__li7939101010100">Multi-VPC access is supported. You can add a maximum of 20 VPCs for one file system and create a maximum of 400 ACL rules for all added VPCs.</li></ul>
</div>
<div class="section" id="sfs_01_0011__section97401714195316"><h4 class="sectiontitle">General Purpose File System</h4><ul id="sfs_01_0011__ul574021445312"><li id="sfs_01_0011__li27401214165310">Only the NFSv3 protocol is supported (NFSv4 is not supported).</li><li id="sfs_01_0011__li18110748145115">General purpose file systems do not support file system encryption.</li><li id="sfs_01_0011__li27402014115318">General purpose file systems can only be accessed over the intranet.</li><li id="sfs_01_0011__li67401014155313">A single directory can contain a maximum of 30 million files.</li><li id="sfs_01_0011__li71101458637">General purpose file systems cannot be mounted to 32-bit Linux ECSs.</li><li id="sfs_01_0011__li158372151054">The name of a general purpose file system must be globally unique. It cannot be the same as any existing general purpose file system name or one created by any other user. And it cannot be changed after the file system is created.</li><li id="sfs_01_0011__li15235918171311">If a general purpose file system is deleted, you can create a new file system with the same name as the deleted one 30 minutes after that file system has been deleted.</li><li id="sfs_01_0011__li12244201110455">General purpose file systems cannot be mounted to Windows ECSs.</li><li id="sfs_01_0011__li2574201265315">Root directory permissions of general purpose file systems cannot be changed.</li><li id="sfs_01_0011__li9514130105617">When General Purpose File System is used as the storage backend of CCE or CCI, you need to empty the in-use file systems before deleting any PVCs or PVs. If you directly delete the PVCs or PVs, the file systems may fail to be deleted. Check whether the file systems are deleted on the General Purpose File System console.<p id="sfs_01_0011__p19872120563"><a name="sfs_01_0011__li9514130105617"></a><a name="li9514130105617"></a>Deleting PVCs or PVs takes some time. The billing ends until the corresponding file systems are deleted from the General Purpose File System console.</p>
<div class="section" id="sfs_01_0011__section97401714195316"><h4 class="sectiontitle">General Purpose File System</h4><ul id="sfs_01_0011__ul574021445312"><li id="sfs_01_0011__li27401214165310">Only the NFSv3 protocol is supported (NFSv4 is not supported).</li><li id="sfs_01_0011__li18110748145115">General purpose file systems do not support file system encryption.</li><li id="sfs_01_0011__li27402014115318">General purpose file systems can only be accessed over the intranet.</li><li id="sfs_01_0011__li67401014155313">A single directory can contain a maximum of 30 million files.</li><li id="sfs_01_0011__li71101458637">General purpose file systems cannot be mounted to 32-bit Linux servers.</li><li id="sfs_01_0011__li158372151054">The name of a general purpose file system must be globally unique. It cannot be the same as the name of any existing general purpose file system or one created by any other user. And it cannot be changed after the file system is created.</li><li id="sfs_01_0011__li15235918171311">If a general purpose file system is deleted, you can only create a general purpose file system with the same name as the deleted one 30 minutes after that file system has been deleted.</li><li id="sfs_01_0011__li12244201110455">General purpose file systems cannot be mounted to Windows servers.</li><li id="sfs_01_0011__li2574201265315">General purpose file systems' root directory permissions cannot be changed.</li><li id="sfs_01_0011__li9514130105617">When general purpose file systems are used as the storage backend of CCE or CCI, you need to empty the file systems before you can delete any PVCs or PVs. If you directly delete the PVCs or PVs, the file systems may fail to be deleted. Check whether the file systems are deleted on the General Purpose File System console.<p id="sfs_01_0011__p19872120563"><a name="sfs_01_0011__li9514130105617"></a><a name="li9514130105617"></a>Deleting PVCs or PVs takes some time. The billing ends until the corresponding general purpose file systems are deleted.</p>
</li></ul>
</div>
<div class="section" id="sfs_01_0011__section1379914103219"><h4 class="sectiontitle">SFS Turbo</h4><ul id="sfs_01_0011__ul12454202111514"><li id="sfs_01_0011__li18218172231811">Only the NFSv3 protocol is supported (NFSv4 is not supported).</li><li id="sfs_01_0011__li36674591451">A maximum of 500 compute nodes can be mounted to and access a single file system at the same time.</li><li id="sfs_01_0011__li1191911396">The maximum capacity of a single file system is 32 TB, and the maximum size of a single file allowed is 320 TB.</li><li id="sfs_01_0011__li1711124484111">Maximum number of files supported by a single file system = Capacity/16. For example, the maximum number of files supported by a 500 GB file system is 32,768,000 (500 GB/16 KB = 500 x 1024 x 1024/16).</li><li id="sfs_01_0011__li0241194671010">By default, a single directory can contain a maximum of 20 million files.<div class="note" id="sfs_01_0011__note141279464011"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="sfs_01_0011__p212818462018">If you need to execute the <strong id="sfs_01_0011__b179776234820">ls</strong>, <strong id="sfs_01_0011__b193941555481">du</strong>, <strong id="sfs_01_0011__b1565111717485">cp</strong>, <strong id="sfs_01_0011__b35661497482">chmod</strong>, or <strong id="sfs_01_0011__b868441254813">chown</strong> command on a directory, you are advised to place no more than 500,000 files or subdirectories in that directory. Otherwise, requests may take long times as the NFS protocol sends a large number of requests to traverse directory files and requests are queueing up.</p>
<div class="section" id="sfs_01_0011__section1379914103219"><h4 class="sectiontitle">SFS Turbo</h4><ul id="sfs_01_0011__ul12454202111514"><li id="sfs_01_0011__li18218172231811">Only the NFSv3 protocol is supported (NFSv4 is not supported).</li><li id="sfs_01_0011__li36674591451">A maximum of 500 compute nodes can be mounted to and access a single file system at the same time.</li><li id="sfs_01_0011__li1191911396">The maximum capacity of a single file system is 32 TB, and the maximum size of a single file allowed is 320 TB.</li><li id="sfs_01_0011__li1711124484111">Maximum number of files supported by a single file system = Capacity/16. For example, the maximum number of files supported by a 500 GB file system is 32,768,000 (500 GB/16 KB = 500 x 1024 x 1024/16).</li><li id="sfs_01_0011__li0241194671010">By default, a single directory can contain a maximum of 20 million files.<div class="note" id="sfs_01_0011__note141279464011"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="sfs_01_0011__p212818462018">If you need to execute the <strong id="sfs_01_0011__b179776234820">ls</strong>, <strong id="sfs_01_0011__b193941555481">du</strong>, <strong id="sfs_01_0011__b1565111717485">cp</strong>, <strong id="sfs_01_0011__b35661497482">chmod</strong>, or <strong id="sfs_01_0011__b868441254813">chown</strong> command on a directory, you are advised to place no more than 500,000 files or subdirectories in that directory. Otherwise, requests may take long times as the NFS protocol sends a large number of requests to traverse directory files and requests are queuing up.</p>
</div></div>
</li><li id="sfs_01_0011__li02371832141118">The maximum full path is 4,096 bytes, and the maximum file name length is 255 bytes.</li><li id="sfs_01_0011__li1777615249129">The maximum soft link length is 1,024 bytes.</li><li id="sfs_01_0011__li17258742171413">The maximum number of hard links is 255.</li><li id="sfs_01_0011__li1762301931519">The maximum directory depth is 100 layers.</li></ul>
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</tr>
<tr id="sfs_01_0013__row1215733111017"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.5.6.2.2.5.1.1 "><p id="sfs_01_0013__p815733151016">SFS Turbo ReadOnlyAccess</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.5.6.2.2.5.1.2 "><p id="sfs_01_0013__p715743181013">Read-only permissions for SFS Turbo. Users granted these permissions can only view SFS Turbo file system data.</p>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.5.6.2.2.5.1.2 "><p id="sfs_01_0013__p715743181013">Read-only permissions for SFS Turbo. Users with these permissions can only view SFS Turbo file system data.</p>
</td>
<td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.5.6.2.2.5.1.3 "><p id="sfs_01_0013__p19157131191014">System-defined policy</p>
</td>

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<div id="body0000001268122689"></div>
<div>
<ul class="ullinks">
<li class="ulchildlink"><strong><a href="sfs_01_1001.html">Mounting an NFS File System to ECSs (Linux)</a></strong><br>
<li class="ulchildlink"><strong><a href="en-us_topic_0034428728.html">Mounting an NFS File System to ECSs (Linux)</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="en-us_topic_0105224109.html">Mounting an NFS File System to ECSs (Windows)</a></strong><br>
</li>

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<a name="sfs_01_0025"></a><a name="sfs_01_0025"></a>
<h1 class="topictitle1">Mounting a File System Automatically</h1>
<div id="body1502855176563"><p id="sfs_01_0025__p10530934111010">File system mounting information may be lost after a server is restarted. You can configure automatic mounting for the server to avoid the mounting information loss.</p>
<div class="section" id="sfs_01_0025__section133730912414"><h4 class="sectiontitle">Restrictions</h4><p id="sfs_01_0025__p54703111441">Because the service startup sequences in different operating systems vary, some servers running CentOS may not support the following automatic mounting schemes. In this case, manually mount the file system.</p>
<div id="body1502855176563"><p id="sfs_01_0025__p10530934111010">File system mount information may be lost after a server is restarted. You can configure auto mount on the server to avoid losing the mount information.</p>
<div class="section" id="sfs_01_0025__section133730912414"><h4 class="sectiontitle">Restrictions</h4><p id="sfs_01_0025__p54703111441">Because service startup sequences in different OSs vary, some servers running CentOS may not support the following auto mount plan. In this case, manually mount the file system.</p>
</div>
<div class="section" id="sfs_01_0025__section38954620214447"><h4 class="sectiontitle">Procedure (Linux)</h4><ol id="sfs_01_0025__ol31052151214457"><li id="sfs_01_0025__li54621311946"><span>Log in to the management console using a cloud account.</span><p><ol type="a" id="sfs_01_0025__ol1253112432049"><li id="sfs_01_0025__li194621111413">Log in to the management console and select a region and a project.</li><li id="sfs_01_0025__li1446216114413">Under <strong id="sfs_01_0025__b23022058143013">Computing</strong>, click <strong id="sfs_01_0025__b17307858123013">Elastic Cloud Server</strong> to switch to the ECS console.</li></ol>
<div class="section" id="sfs_01_0025__section38954620214447"><h4 class="sectiontitle">Procedure (Linux)</h4><ol id="sfs_01_0025__ol31052151214457"><li id="sfs_01_0025__li54621311946"><span>Log in to the management console using a cloud account.</span><p><ol type="a" id="sfs_01_0025__ol1253112432049"><li id="sfs_01_0025__li194621111413">Log in to the management console and select a region and a project.</li><li id="sfs_01_0025__li1446216114413">Choose <strong id="sfs_01_0025__b10257105014211">Compute</strong> &gt; <strong id="sfs_01_0025__b22574501821">Elastic Cloud Server</strong> to go to the ECS console.</li></ol>
</p></li><li id="sfs_01_0025__li21358386214457"><span>Log in to the ECS as user <strong id="sfs_01_0025__sfs_01_0038_b84235270611308">root</strong>.</span></li><li id="sfs_01_0025__li40717767214526"><span>Run the <strong id="sfs_01_0025__b10997558110433">vi /etc/fstab</strong> command to edit the <strong id="sfs_01_0025__b84235270615915">/etc/fstab</strong> file.</span><p><div class="p" id="sfs_01_0025__p4652476311356">At the end of the file, add the file system information, for example:<pre class="screen" id="sfs_01_0025__screen25662203111850"><em id="sfs_01_0025__i148372111482">Mount point /local_path</em> nfs vers=3,timeo=600,nolock 0 0</pre>
</div>
<p id="sfs_01_0025__p37506451114016">Replace <em id="sfs_01_0025__i855927408111621">Mount point</em> and <em id="sfs_01_0025__i1313917117111625">/local_path</em> with actual values. You can obtain the mount point from the <strong id="sfs_01_0025__b689345616314">Mount Address</strong> column of the file system. Each record in the <strong id="sfs_01_0025__b842352706111648">/etc/fstab</strong> file corresponds to a mount. Each record has six fields, as described in <a href="#sfs_01_0025__section241009011643">Field Description</a>.</p>
<div class="notice" id="sfs_01_0025__note5180087211526"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><p id="sfs_01_0025__p6355466411526">For optimal system performance, configure file system information based on the previous example configuration. If needed, you can customize part of mount parameters. However, the customization may affect system performance.</p>
</div></div>
</p></li><li id="sfs_01_0025__li33930135215718"><span>Press <strong id="sfs_01_0025__b51116037112652">Esc</strong>, input <strong id="sfs_01_0025__b58164000112657">:wq</strong>, and press <strong id="sfs_01_0025__b6357507311271">Enter</strong> to save and exit.</span><p><p id="sfs_01_0025__p5181592022449">After the preceding configurations are complete, the system reads mounting information from the <strong id="sfs_01_0025__b10680175154916">/etc/fstab</strong> file to automatically mount the file system when the ECS restarts.</p>
</p></li><li id="sfs_01_0025__li33930135215718"><span>Press <strong id="sfs_01_0025__b51116037112652">Esc</strong>, input <strong id="sfs_01_0025__b58164000112657">:wq</strong>, and press <strong id="sfs_01_0025__b6357507311271">Enter</strong> to save and exit.</span><p><p id="sfs_01_0025__p5181592022449">After the preceding configurations are complete, the system reads mount information from the <strong id="sfs_01_0025__b10680175154916">/etc/fstab</strong> file to automatically mount the file system when the ECS restarts.</p>
</p></li><li id="sfs_01_0025__li22181757215748"><span>(Optional) Run the following command to view the updated content of the <strong id="sfs_01_0025__b131626211310463">/etc/fstab</strong> file:</span><p><p id="sfs_01_0025__sfs_01_0038_p346907151042"><strong id="sfs_01_0025__b45693947215832">cat /etc/fstab</strong></p>
<p id="sfs_01_0025__p4203030122844"><a href="#sfs_01_0025__fig1023252822220">Figure 1</a> shows the updated file content.</p>
<div class="fignone" id="sfs_01_0025__fig1023252822220"><a name="sfs_01_0025__fig1023252822220"></a><a name="fig1023252822220"></a><span class="figcap"><b>Figure 1 </b>Updated file content</span><br><span><img id="sfs_01_0025__image1863205519406" src="en-us_image_0072283477.png" height="99.746143" width="452.865" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0025__fig1023252822220"><a name="sfs_01_0025__fig1023252822220"></a><a name="fig1023252822220"></a><span class="figcap"><b>Figure 1 </b>Updated file content</span><br><span><img id="sfs_01_0025__image1863205519406" src="en-us_image_0072283477.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0025__li63633710915"><span>If auto mount fails due to a network issue, add the <strong id="sfs_01_0025__b654021211819">sleep</strong> option and a time in front of the mount command in the <strong id="sfs_01_0025__b10541112131815">rc.local</strong> file, and mount the file system after the NFS service is started.</span><p><pre class="screen" id="sfs_01_0025__screen47845481655"><strong id="sfs_01_0025__b198625422120">sleep 10s &amp;&amp; sudo</strong> mount -t nfs -o vers=3,timeo=600,noresvport,nolock,tcp <em id="sfs_01_0025__i1985411385228">Mount point</em>/<em id="sfs_01_0025__i107423336226">local_path</em></pre>
</p></li></ol>
</div>
@ -27,17 +27,17 @@
</thead>
<tbody><tr id="sfs_01_0025__sfs_01_0025_row3037087111206"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.3.2.3.1.1 "><p id="sfs_01_0025__sfs_01_0025_p4412150111206"><em id="sfs_01_0025__i2092314171365">Mount point</em></p>
</td>
<td class="cellrowborder" valign="top" width="80%" headers="mcps1.3.4.3.2.3.1.2 "><p id="sfs_01_0025__sfs_01_0025_p1707183511206">Mount object, that is, the mount point of the file system to be mounted. Set this parameter to the mount point in the <strong id="sfs_01_0025__b173934555816">mount</strong> command that is used in <a href="sfs_01_1001.html">Mounting an NFS File System to ECSs (Linux)</a>.</p>
<td class="cellrowborder" valign="top" width="80%" headers="mcps1.3.4.3.2.3.1.2 "><p id="sfs_01_0025__sfs_01_0025_p1707183511206">The mount point of the file system to be mounted. Set it to the mount point in the <strong id="sfs_01_0025__b134231742164812">mount</strong> command in <a href="en-us_topic_0034428728.html">Mounting an NFS File System to ECSs (Linux)</a>.</p>
</td>
</tr>
<tr id="sfs_01_0025__sfs_01_0025_row3259701211206"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.3.2.3.1.1 "><p id="sfs_01_0025__sfs_01_0025_p2311233111206"><em id="sfs_01_0025__i272352251490">/local_path</em></p>
</td>
<td class="cellrowborder" valign="top" width="80%" headers="mcps1.3.4.3.2.3.1.2 "><p id="sfs_01_0025__sfs_01_0025_p6015955111206">Mount point, that is, the directory created on the ECS for mounting the file system. Set this parameter to the local path in the <strong id="sfs_01_0025__b1463681911119">mount</strong> command that is used in <a href="sfs_01_1001.html">Mounting an NFS File System to ECSs (Linux)</a>.</p>
<td class="cellrowborder" valign="top" width="80%" headers="mcps1.3.4.3.2.3.1.2 "><p id="sfs_01_0025__sfs_01_0025_p6015955111206">A directory created on the ECS used to mount the file system. Set it to the local path in the <strong id="sfs_01_0025__b18126173719493">mount</strong> command in <a href="en-us_topic_0034428728.html">Mounting an NFS File System to ECSs (Linux)</a>.</p>
</td>
</tr>
<tr id="sfs_01_0025__sfs_01_0025_row2074966211206"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.3.2.3.1.1 "><p id="sfs_01_0025__sfs_01_0025_p300108911206">nfs</p>
</td>
<td class="cellrowborder" valign="top" width="80%" headers="mcps1.3.4.3.2.3.1.2 "><p id="sfs_01_0025__sfs_01_0025_p4176163611206">Mount type, that is, file system or partition type. Set it to <strong id="sfs_01_0025__b842352706112326">nfs</strong>.</p>
<td class="cellrowborder" valign="top" width="80%" headers="mcps1.3.4.3.2.3.1.2 "><p id="sfs_01_0025__sfs_01_0025_p4176163611206">The file system or partition mount type. Set it to <strong id="sfs_01_0025__b842352706112326">nfs</strong>.</p>
</td>
</tr>
<tr id="sfs_01_0025__sfs_01_0025_row4391735511206"><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.3.2.3.1.1 "><p id="sfs_01_0025__p34504224917">vers=3,timeo=600,nolock</p>
@ -63,16 +63,16 @@
</div>
</div>
<div class="section" id="sfs_01_0025__section6323162217518"><h4 class="sectiontitle">Procedure (Windows)</h4><p id="sfs_01_0025__p2550830134315">Ensure that an NFS client has been installed on the target server before mounting. This section uses Windows Server 2012 as an example to describe how to mount a file system.</p>
<ol id="sfs_01_0025__ol19422114384212"><li id="sfs_01_0025__li151862291180"><span>Log in to the management console using a cloud account.</span><p><ol type="a" id="sfs_01_0025__ol17186629985"><li id="sfs_01_0025__li41861629885">Log in to the management console and select a region and a project.</li><li id="sfs_01_0025__li2186162917812">Under <strong id="sfs_01_0025__b147288147312">Computing</strong>, click <strong id="sfs_01_0025__b11733141420317">Elastic Cloud Server</strong> to switch to the ECS console.</li></ol>
<ol id="sfs_01_0025__ol19422114384212"><li id="sfs_01_0025__li151862291180"><span>Log in to the management console using a cloud account.</span><p><ol type="a" id="sfs_01_0025__ol17186629985"><li id="sfs_01_0025__li41861629885">Log in to the management console and select a region and a project.</li><li id="sfs_01_0025__li2186162917812">Choose <strong id="sfs_01_0025__b15481143915210">Compute</strong> &gt; <strong id="sfs_01_0025__b1648119395217">Elastic Cloud Server</strong> to go to the ECS console.</li></ol>
</p></li><li id="sfs_01_0025__li1794418553818"><span>Log in to the ECS.</span></li><li id="sfs_01_0025__li1042224313429"><span>Before mounting the file system, create a script named <strong id="sfs_01_0025__b14361753133312">auto_mount.bat</strong>, save the script to a local host, and record the save path. The script contains the following content:</span><p><pre class="screen" id="sfs_01_0025__screen19780739141315">mount -o nolock <em id="sfs_01_0025__i2720731222">mount point</em> <em id="sfs_01_0025__i838063616216">corresponding drive letter</em></pre>
<div class="fignone" id="sfs_01_0025__fig16219105811227"><span class="figcap"><b>Figure 2 </b>Saving the script</span><br><span><img id="sfs_01_0025__image9219185822215" src="en-us_image_0000001171982484.png" height="386.57274600000005" width="521.36" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0025__fig16219105811227"><span class="figcap"><b>Figure 2 </b>Saving the script</span><br><span><img id="sfs_01_0025__image9219185822215" src="en-us_image_0000001171982484.png" title="Click to enlarge" class="imgResize"></span></div>
<p id="sfs_01_0025__p598813910337">For example, the <strong id="sfs_01_0025__b1949524564414">auto_mount.bat</strong> script of a file system contains the following content:</p>
<p id="sfs_01_0025__p118411845448">For SFS Capacity-Oriented file systems: <strong id="sfs_01_0025__b1279744214423">mount -o nolock</strong> <i><span class="varname" id="sfs_01_0025__varname1679884216429">mount point</span></i> <strong id="sfs_01_0025__b579811428428">X:</strong></p>
<p id="sfs_01_0025__p118411845448">For SFS Capacity-Oriented file systems: <strong id="sfs_01_0025__b5161447611">mount -o nolock</strong> <i><span class="varname" id="sfs_01_0025__varname1216116479110">Mount point</span></i> <strong id="sfs_01_0025__b316244718119">X:</strong></p>
<div class="note" id="sfs_01_0025__note12279133834418"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="sfs_01_0025__ul085211314379"><li id="sfs_01_0025__li1185219314376">You can copy the mount command of the file system from the console.</li><li id="sfs_01_0025__li085263113710">After the script is created, manually run the script in the Command Prompt to ensure that the script can be executed successfully. If you can view the file system in <strong id="sfs_01_0025__b9147653192710">This PC</strong> after the script execution, the script can be executed properly.</li><li id="sfs_01_0025__li38524353712">This .bat script cannot be stored in the same path in <a href="#sfs_01_0025__li1575462317355">4</a> that stores the .vbs file. In this example, the .bat script is stored in <strong id="sfs_01_0025__b13417152942919">C:\test\</strong>.</li></ul>
</div></div>
</p></li><li id="sfs_01_0025__li1575462317355"><a name="sfs_01_0025__li1575462317355"></a><a name="li1575462317355"></a><span>Create a .txt file whose name is <em id="sfs_01_0025__i487814181336">XXX</em><strong id="sfs_01_0025__b38441523531">.vbs</strong> and save the file to the directory <strong id="sfs_01_0025__b14560102615121">C:\Users\Administrator\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup</strong>. The file contains the following content: </span><p><pre class="screen" id="sfs_01_0025__screen4819104568">set ws=WScript.CreateObject("WScript.Shell")
ws.Run "<em id="sfs_01_0025__i131717571986">Local path and script name of the auto_mount.bat script</em> /start", 0</pre>
<div class="fignone" id="sfs_01_0025__fig1231574312415"><span class="figcap"><b>Figure 3 </b>Creating .vbs file</span><br><span><img id="sfs_01_0025__image13151443172416" src="en-us_image_0000001217262463.png" height="392.39083100000005" width="521.36" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0025__fig1231574312415"><span class="figcap"><b>Figure 3 </b>Creating .vbs file</span><br><span><img id="sfs_01_0025__image13151443172416" src="en-us_image_0000001217262463.png" title="Click to enlarge" class="imgResize"></span></div>
<div class="note" id="sfs_01_0025__note112153387250"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="sfs_01_0025__p15215038122510">In this example, the local path of the <strong id="sfs_01_0025__b18423145103118">auto_mount.bat</strong> script is <strong id="sfs_01_0025__b11230111553118">C:\test\</strong>. Therefore, the content in the .vbs file is as follows:</p>
<pre class="screen" id="sfs_01_0025__screen766321617269">set ws=WScript.CreateObject("WScript.Shell")
ws.Run "C:\test\auto_mount.bat /start",0</pre>

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<div id="body0000001268123317"><p id="sfs_01_0026__p77411225133519">If a file system is no longer used and needs to be deleted, you are advised to unmount the file system and then delete it.</p>
<div class="section" id="sfs_01_0026__section02521113114"><h4 class="sectiontitle">Prerequisites</h4><p id="sfs_01_0026__p162641610113">Before unmounting a file system, stop the process and read/write operations.</p>
</div>
<div class="section" id="sfs_01_0026__section1462012210545"><h4 class="sectiontitle">Linux OS</h4><ol id="sfs_01_0026__ol20314121985016"><li id="sfs_01_0026__li54621311946"><span>Log in to the management console using a cloud account.</span><p><ol type="a" id="sfs_01_0026__ol1253112432049"><li id="sfs_01_0026__li194621111413">Log in to the management console and select a region and a project.</li><li id="sfs_01_0026__li1446216114413">Under <strong id="sfs_01_0026__b546110551012">Computing</strong>, click <strong id="sfs_01_0026__b446275191018">Elastic Cloud Server</strong> to go to the ECS console.</li></ol>
<div class="section" id="sfs_01_0026__section1462012210545"><h4 class="sectiontitle">Linux OS</h4><ol id="sfs_01_0026__ol20314121985016"><li id="sfs_01_0026__li54621311946"><span>Log in to the management console using a cloud account.</span><p><ol type="a" id="sfs_01_0026__ol1253112432049"><li id="sfs_01_0026__li194621111413">Log in to the management console and select a region and a project.</li><li id="sfs_01_0026__li1446216114413">Choose <strong id="sfs_01_0026__b21385271520">Compute</strong> &gt; <strong id="sfs_01_0026__b2013862712211">Elastic Cloud Server</strong> to go to the ECS console.</li></ol>
</p></li><li id="sfs_01_0026__li1677145895116"><span>Log in to the ECS.</span></li><li id="sfs_01_0026__li131341334125316"><span>Run the following command:</span><p><p id="sfs_01_0026__p2889143515319"><strong id="sfs_01_0026__b2669639181113">umount</strong> <i><span class="varname" id="sfs_01_0026__varname666973931115">Local path</span></i></p>
<p id="sfs_01_0026__p342554411568"><i><span class="varname" id="sfs_01_0026__varname721164514118">Local path</span></i>: An ECS local directory where the file system is mounted, for example, <span class="filepath" id="sfs_01_0026__filepath10211145131119"><b>/local_path</b></span>.</p>
<div class="note" id="sfs_01_0026__note1230163845711"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="sfs_01_0026__p0323386576">Before running the <strong id="sfs_01_0026__b92618419124">umount</strong> command, stop all read and write operations related to the file system and exit from the local path. Or, the unmounting will fail.</p>
</div></div>
</p></li></ol>
</div>
<div class="section" id="sfs_01_0026__section1362092225415"><h4 class="sectiontitle">Windows OS</h4><ol id="sfs_01_0026__ol25641832145110"><li id="sfs_01_0026__li155421393913"><span>Log in to the management console using a cloud account.</span><p><ol type="a" id="sfs_01_0026__ol4542597914"><li id="sfs_01_0026__li254279791">Log in to the management console and select a region and a project.</li><li id="sfs_01_0026__li4542189799">Under <strong id="sfs_01_0026__b537411226137">Computing</strong>, click <strong id="sfs_01_0026__b0374172291314">Elastic Cloud Server</strong> to go to the ECS console.</li></ol>
</p></li><li id="sfs_01_0026__li3564153219512"><span>Log in to the ECS.</span></li><li id="sfs_01_0026__li78693311522"><span>Right-click the file system to be unmounted and choose <strong id="sfs_01_0026__b07861834131917">Disconnect</strong>.</span><p><div class="fignone" id="sfs_01_0026__fig19882142215105"><span class="figcap"><b>Figure 1 </b>Unmounting</span><br><span><img id="sfs_01_0026__image198839226106" src="en-us_image_0000001268123369.png" height="392.01750000000004" width="523.6875" title="Click to enlarge" class="imgResize"></span></div>
<div class="section" id="sfs_01_0026__section1362092225415"><h4 class="sectiontitle">Windows OS</h4><ol id="sfs_01_0026__ol25641832145110"><li id="sfs_01_0026__li155421393913"><span>Log in to the management console using a cloud account.</span><p><ol type="a" id="sfs_01_0026__ol4542597914"><li id="sfs_01_0026__li254279791">Log in to the management console and select a region and a project.</li><li id="sfs_01_0026__li4542189799">Choose <strong id="sfs_01_0026__b8982163215141">Compute</strong> &gt; <strong id="sfs_01_0026__b129821932131419">Elastic Cloud Server</strong> to go to the ECS console.</li></ol>
</p></li><li id="sfs_01_0026__li3564153219512"><span>Log in to the ECS.</span></li><li id="sfs_01_0026__li78693311522"><span>Right-click the file system to be unmounted and choose <strong id="sfs_01_0026__b07861834131917">Disconnect</strong>.</span><p><div class="fignone" id="sfs_01_0026__fig19882142215105"><span class="figcap"><b>Figure 1 </b>Unmounting</span><br><span><img id="sfs_01_0026__image198839226106" src="en-us_image_0000001268123369.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0026__li1346214363135"><span>If the file system disappears from the network location, it has been unmounted.</span></li></ol>
</div>
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<div id="body1505701992588"><p id="sfs_01_0027__p8060118">This section explains how to enable or add a software repository in CentOS, SUSE, and Ubuntu.</p>
<div class="section" id="sfs_01_0027__section5187641210364"><h4 class="sectiontitle">CentOS</h4><ol id="sfs_01_0027__ol38838178103618"><li id="sfs_01_0027__li5411239103618"><span>Run the following command to check whether a software repository has been enabled.</span><p><p id="sfs_01_0027__p658292610370"><strong id="sfs_01_0027__b22174884103728">yum repolist all</strong></p>
<p id="sfs_01_0027__p54138586104353">If <strong id="sfs_01_0027__b842352706143021">status</strong> is <strong id="sfs_01_0027__b842352706143024">disabled</strong>, as shown in <a href="#sfs_01_0027__fig50710110103819">Figure 1</a>, no software repository has been enabled. Proceed to the next step.</p>
<div class="fignone" id="sfs_01_0027__fig50710110103819"><a name="sfs_01_0027__fig50710110103819"></a><a name="fig50710110103819"></a><span class="figcap"><b>Figure 1 </b>Checking software repositories</span><br><span><img id="sfs_01_0027__image13878235103819" src="en-us_image_0077173267.png" height="85.836991809382" width="494.76000000000005" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0027__fig50710110103819"><a name="sfs_01_0027__fig50710110103819"></a><a name="fig50710110103819"></a><span class="figcap"><b>Figure 1 </b>Checking software repositories</span><br><span><img id="sfs_01_0027__image13878235103819" src="en-us_image_0077173267.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0027__li67025606103946"><span>Run the following command to enable a software repository. This step uses <strong id="sfs_01_0027__b1271608998143122">Public-OTC-CentOS-7-Base</strong> as an example.</span><p><p id="sfs_01_0027__p41217152104022"><strong id="sfs_01_0027__b36244950174932">yum-config-manager --enable Public-OTC-CentOS-7-Base</strong></p>
<div class="fignone" id="sfs_01_0027__fig14720407104057"><span class="figcap"><b>Figure 2 </b>Enabling a software repository</span><br><span><img id="sfs_01_0027__image51502279104057" src="en-us_image_0077173268.png" height="181.59061371841173" width="494.76000000000005" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0027__fig14720407104057"><span class="figcap"><b>Figure 2 </b>Enabling a software repository</span><br><span><img id="sfs_01_0027__image51502279104057" src="en-us_image_0077173268.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0027__li52678992105456"><span>Run the following command to check whether the software repository described in step 2 has been enabled.</span><p><p id="sfs_01_0027__p38475237105458"><strong id="sfs_01_0027__b3392259110479">yum repolist all</strong></p>
<div class="p" id="sfs_01_0027__p174375710552">If <strong id="sfs_01_0027__b2093593792">status</strong> is <strong id="sfs_01_0027__b825022212">enabled</strong>, as shown in <a href="#sfs_01_0027__fig33842796104733">Figure 3</a>, the software repository has been enabled.<div class="fignone" id="sfs_01_0027__fig33842796104733"><a name="sfs_01_0027__fig33842796104733"></a><a name="fig33842796104733"></a><span class="figcap"><b>Figure 3 </b>Checking whether the software repository has been enabled</span><br><span><img id="sfs_01_0027__image56911918104733" src="en-us_image_0077173489.png" height="78.52748137108799" width="494.76000000000005" title="Click to enlarge" class="imgResize"></span></div>
<div class="p" id="sfs_01_0027__p174375710552">If <strong id="sfs_01_0027__b2093593792">status</strong> is <strong id="sfs_01_0027__b825022212">enabled</strong>, as shown in <a href="#sfs_01_0027__fig33842796104733">Figure 3</a>, the software repository has been enabled.<div class="fignone" id="sfs_01_0027__fig33842796104733"><a name="sfs_01_0027__fig33842796104733"></a><a name="fig33842796104733"></a><span class="figcap"><b>Figure 3 </b>Checking whether the software repository has been enabled</span><br><span><img id="sfs_01_0027__image56911918104733" src="en-us_image_0077173489.png" title="Click to enlarge" class="imgResize"></span></div>
</div>
</p></li></ol>
</div>
<div class="section" id="sfs_01_0027__section2416343611520"><h4 class="sectiontitle">SUSE</h4><ol id="sfs_01_0027__ol4735433711527"><li id="sfs_01_0027__li2170698811527"><span>Run the following command to check whether a software repository has been enabled.</span><p><p id="sfs_01_0027__sfs_01_0027_p46402639105726"><strong id="sfs_01_0027__sfs_01_0027_b14970570105726">zypper lr</strong></p>
<p id="sfs_01_0027__sfs_01_0027_sfs_01_0027_p54138586104353">If no software repository is detected, as shown in <a href="#sfs_01_0027__sfs_01_0027_sfs_01_0027_fig50710110103819">Figure 4</a>, proceed to the next step.</p>
<div class="fignone" id="sfs_01_0027__sfs_01_0027_sfs_01_0027_fig50710110103819"><a name="sfs_01_0027__sfs_01_0027_sfs_01_0027_fig50710110103819"></a><a name="sfs_01_0027_sfs_01_0027_fig50710110103819"></a><span class="figcap"><b>Figure 4 </b>Checking software repositories</span><br><span><img id="sfs_01_0027__image836909211751" src="en-us_image_0077181786.png" height="65.42727868852457" width="494.76000000000005" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0027__li14466870214458"><span>Run the following command to add a software repository. This step uses <strong id="sfs_01_0027__b8423527061057">opensuse12.2</strong> as an example.</span><p><div class="p" id="sfs_01_0027__p46144407112734"><strong id="sfs_01_0027__b15695774112244">zypper addrepo http://download.opensuse.org/distribution/12.2/repo/oss/ opensuse-main</strong><div class="fignone" id="sfs_01_0027__fig18983675112352"><span class="figcap"><b>Figure 5 </b>Adding a software repository</span><br><span><img id="sfs_01_0027__image61282683112352" src="en-us_image_0077185561.png" height="104.37504504504535" width="494.76000000000005" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0027__sfs_01_0027_sfs_01_0027_fig50710110103819"><a name="sfs_01_0027__sfs_01_0027_sfs_01_0027_fig50710110103819"></a><a name="sfs_01_0027_sfs_01_0027_fig50710110103819"></a><span class="figcap"><b>Figure 4 </b>Checking software repositories</span><br><span><img id="sfs_01_0027__image836909211751" src="en-us_image_0077181786.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0027__li14466870214458"><span>Run the following command to add a software repository. This step uses <strong id="sfs_01_0027__b8423527061057">opensuse12.2</strong> as an example.</span><p><div class="p" id="sfs_01_0027__p46144407112734"><strong id="sfs_01_0027__b15695774112244">zypper addrepo http://download.opensuse.org/distribution/12.2/repo/oss/ opensuse-main</strong><div class="fignone" id="sfs_01_0027__fig18983675112352"><span class="figcap"><b>Figure 5 </b>Adding a software repository</span><br><span><img id="sfs_01_0027__image61282683112352" src="en-us_image_0077185561.png" title="Click to enlarge" class="imgResize"></span></div>
</div>
</p></li><li id="sfs_01_0027__li25739503112419"><span>Run the following command to update and add software repositories.</span><p><p id="sfs_01_0027__sfs_01_0027_p1552707811327"><strong id="sfs_01_0027__sfs_01_0027_b552597511327">zypper refresh</strong></p>
<div class="fignone" id="sfs_01_0027__fig1390229711259"><span class="figcap"><b>Figure 6 </b>Updating and adding repositories</span><br><span><img id="sfs_01_0027__image5234431011259" src="en-us_image_0077185562.png" height="147.39107784431124" width="494.76000000000005" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0027__fig1390229711259"><span class="figcap"><b>Figure 6 </b>Updating and adding repositories</span><br><span><img id="sfs_01_0027__image5234431011259" src="en-us_image_0077185562.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0027__li59443011112547"><span>Run the following command to check whether the software repository described in step 2 has been enabled.</span><p><p id="sfs_01_0027__sfs_01_0027_p4308377711412"><strong id="sfs_01_0027__sfs_01_0027_b5220967311412">zypper lr</strong></p>
<div class="p" id="sfs_01_0027__sfs_01_0027_sfs_01_0027_p174375710552">If <strong id="sfs_01_0027__b1119250797">Enabled</strong> is <strong id="sfs_01_0027__b1698327664">Yes</strong>, as shown in <a href="#sfs_01_0027__sfs_01_0027_sfs_01_0027_fig33842796104733">Figure 7</a>, the software repository has been enabled.<div class="fignone" id="sfs_01_0027__sfs_01_0027_sfs_01_0027_fig33842796104733"><a name="sfs_01_0027__sfs_01_0027_sfs_01_0027_fig33842796104733"></a><a name="sfs_01_0027_sfs_01_0027_fig33842796104733"></a><span class="figcap"><b>Figure 7 </b>Checking whether the software repository has been enabled</span><br><span><img id="sfs_01_0027__sfs_01_0027_image2230840711443" src="en-us_image_0077186364.png" height="95.47290269828291" width="494.76000000000005" title="Click to enlarge" class="imgResize"></span></div>
<div class="p" id="sfs_01_0027__sfs_01_0027_sfs_01_0027_p174375710552">If <strong id="sfs_01_0027__b1119250797">Enabled</strong> is <strong id="sfs_01_0027__b1698327664">Yes</strong>, as shown in <a href="#sfs_01_0027__sfs_01_0027_sfs_01_0027_fig33842796104733">Figure 7</a>, the software repository has been enabled.<div class="fignone" id="sfs_01_0027__sfs_01_0027_sfs_01_0027_fig33842796104733"><a name="sfs_01_0027__sfs_01_0027_sfs_01_0027_fig33842796104733"></a><a name="sfs_01_0027_sfs_01_0027_fig33842796104733"></a><span class="figcap"><b>Figure 7 </b>Checking whether the software repository has been enabled</span><br><span><img id="sfs_01_0027__sfs_01_0027_image2230840711443" src="en-us_image_0077186364.png" title="Click to enlarge" class="imgResize"></span></div>
</div>
</p></li></ol>
</div>
<div class="section" id="sfs_01_0027__section16938692113347"><h4 class="sectiontitle">Ubuntu</h4><ol id="sfs_01_0027__ol321682511344"><li id="sfs_01_0027__li5342128111344"><span>Run the following command to add a software repository.</span><p><div class="p" id="sfs_01_0027__p60451486113545"><strong id="sfs_01_0027__b7192463113545">apt-add-repository http://archive.canonical.com/ubuntu</strong><div class="fignone" id="sfs_01_0027__sfs_01_0027_sfs_01_0027_fig18983675112352"><span class="figcap"><b>Figure 8 </b>Adding a software repository</span><br><span><img id="sfs_01_0027__image46753030113640" src="en-us_image_0077187391.png" height="29.66035714285719" width="494.76000000000005" title="Click to enlarge" class="imgResize"></span></div>
<div class="section" id="sfs_01_0027__section16938692113347"><h4 class="sectiontitle">Ubuntu</h4><ol id="sfs_01_0027__ol321682511344"><li id="sfs_01_0027__li5342128111344"><span>Run the following command to add a software repository.</span><p><div class="p" id="sfs_01_0027__p60451486113545"><strong id="sfs_01_0027__b7192463113545">apt-add-repository http://archive.canonical.com/ubuntu</strong><div class="fignone" id="sfs_01_0027__sfs_01_0027_sfs_01_0027_fig18983675112352"><span class="figcap"><b>Figure 8 </b>Adding a software repository</span><br><span><img id="sfs_01_0027__image46753030113640" src="en-us_image_0077187391.png" title="Click to enlarge" class="imgResize"></span></div>
</div>
</p></li><li id="sfs_01_0027__li11378450113434"><span>Run the following command to update and add software repositories.</span><p><p id="sfs_01_0027__sfs_01_0027_p45571175113234"><strong id="sfs_01_0027__sfs_01_0027_b7487395113234">apt-get update</strong></p>
<div class="fignone" id="sfs_01_0027__sfs_01_0027_sfs_01_0027_fig1390229711259"><span class="figcap"><b>Figure 9 </b>Updating and adding repositories</span><br><span><img id="sfs_01_0027__image2171857211379" src="en-us_image_0077187392.png" height="129.5209227683045" width="494.76000000000005" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0027__sfs_01_0027_sfs_01_0027_fig1390229711259"><span class="figcap"><b>Figure 9 </b>Updating and adding repositories</span><br><span><img id="sfs_01_0027__image2171857211379" src="en-us_image_0077187392.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li></ol>
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<div id="body1559035268439"><p id="sfs_01_0032__p16362181233">This chapter describes how to use IAM to implement fine-grained permissions control for your SFS resources. With IAM, you can:</p>
<ul id="sfs_01_0032__ul737218182317"><li id="sfs_01_0032__li11371918152317">Create IAM users for employees based on your enterprise's organizational structure. Each IAM user will have their own security credentials for accessing SFS resources.</li><li id="sfs_01_0032__li7372018132315">Grant only the permissions required for users to perform a specific task.</li></ul>
<p id="sfs_01_0032__p6381818172311">If your cloud account does not require individual IAM users, skip this section.</p>
<p id="sfs_01_0032__p05785215594">This section describes the procedure for granting permissions (see <a href="#sfs_01_0032__fig625610403530">Figure 1</a>).</p>
<p id="sfs_01_0032__p05785215594">This section describes the procedure for granting permissions (see <a href="#sfs_01_0032__en-us_topic_0000001489537442_fig1351611812271">Figure 1</a>).</p>
<div class="section" id="sfs_01_0032__section19578184675710"><h4 class="sectiontitle">Prerequisites</h4><p id="sfs_01_0032__p57824185467">Learn about the permissions (see <a href="sfs_01_0013.html">Permissions</a>) supported by SFS and choose policies or roles according to your requirements. </p>
</div>
<div class="section" id="sfs_01_0032__section1016916187178"><h4 class="sectiontitle">Restrictions</h4><ul id="sfs_01_0032__ul741218591550"><li id="sfs_01_0032__li104126598554">Both system-defined policies and custom policies are supported in SFS Turbo file systems.</li></ul>
<div class="section" id="sfs_01_0032__section1016916187178"><h4 class="sectiontitle">Constraints</h4><ul id="sfs_01_0032__ul741218591550"><li id="sfs_01_0032__li104126598554">Both system-defined policies and custom policies are supported in SFS Turbo file systems.</li></ul>
</div>
<div class="section" id="sfs_01_0032__section142281352125915"><h4 class="sectiontitle">Process Flow</h4><div class="fignone" id="sfs_01_0032__fig625610403530"><a name="sfs_01_0032__fig625610403530"></a><a name="fig625610403530"></a><span class="figcap"><b>Figure 1 </b>Process for granting SFS permissions</span><br><span><img class="vsd" id="sfs_01_0032__image8257840115317" src="en-us_image_0221089836.png"></span></div>
<div class="section" id="sfs_01_0032__section142281352125915"><h4 class="sectiontitle">Process Flow</h4><div class="fignone" id="sfs_01_0032__en-us_topic_0000001489537442_fig1351611812271"><a name="sfs_01_0032__en-us_topic_0000001489537442_fig1351611812271"></a><a name="en-us_topic_0000001489537442_fig1351611812271"></a><span class="figcap"><b>Figure 1 </b>Process of granting SFS Turbo permissions</span><br><span><img id="sfs_01_0032__en-us_topic_0000001489537442_image35161382273" src="en-us_image_0000002419860586.png" title="Click to enlarge" class="imgResize"></span></div>
<ol id="sfs_01_0032__ol23988231126"><li id="sfs_01_0032__li539812235120"><a name="sfs_01_0032__li539812235120"></a><a name="li539812235120"></a>Create a user group and assign permissions to it.<p id="sfs_01_0032__p2028474791210"><a name="sfs_01_0032__li539812235120"></a><a name="li539812235120"></a>Create a user group on the IAM console, and attach the <strong id="sfs_01_0032__b19815317202">SFS Turbo ReadOnlyAccess</strong> policy to the group.</p>
</li><li id="sfs_01_0032__li214515333122">Create a user and add it to a user group.<p id="sfs_01_0032__p164319500123"><a name="sfs_01_0032__li214515333122"></a><a name="li214515333122"></a>Create a user on the IAM console and add the user to the group created in <a href="#sfs_01_0032__li539812235120">1</a>.</p>
</li><li id="sfs_01_0032__li1084136121217">Log in and verify permissions.<p id="sfs_01_0032__p865613303275"><a name="sfs_01_0032__li1084136121217"></a><a name="li1084136121217"></a>Log in to the SFS console using the created user, and verify that the user only has read permissions for SFS.</p>
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<a name="sfs_01_0033"></a><a name="sfs_01_0033"></a>
<h1 class="topictitle1">Creating a Custom Policy</h1>
<div id="body1559035268440"><p id="sfs_01_0033__p88206116530">Custom policies can be created to supplement the system-defined policies of SFS. For the actions supported for custom policies, see section "Permissions Policies and Supported Actions" in the <em id="sfs_01_0033__i18102191922413">Scalable File Service API Reference</em>.</p>
<div id="body1559035268440"><p id="sfs_01_0033__p88206116530">Custom policies can be created to supplement the system-defined policies of SFS. For the actions supported for custom policies, see section "Permissions Policies and Supported Actions" in the <em id="sfs_01_0033__i41901881547">Scalable File Service API Reference</em>.</p>
<p id="sfs_01_0033__p2079563182513">You can create custom policies in either of the following two ways:</p>
<ul id="sfs_01_0033__ul379563122510"><li id="sfs_01_0033__li18795123142512">Visual editor: Select cloud services, actions, resources, and request conditions. This does not require knowledge of policy syntax.</li><li id="sfs_01_0033__li294510932511">JSON: Edit JSON policies from scratch or based on an existing policy.</li></ul>
<p id="sfs_01_0033__p8060118">This section provides examples of common custom SFS policies.</p>

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<a name="sfs_01_0036"></a><a name="sfs_01_0036"></a>
<h1 class="topictitle1">Configuring Multi-VPC Access</h1>
<div id="body1521721681680"><p id="sfs_01_0036__p1144235913116">VPC provisions an isolated virtual network environment defined and managed by yourself, improving the security of cloud resources and simplifying network deployment. When using SFS, a file system and the associated ECSs need to belong to the same VPC for file sharing.</p>
<div id="body1521721681680"><p id="sfs_01_0036__p1144235913116">A VPC enables you to provision logically isolated, configurable, and manageable virtual networks for ECSs, improving the security of cloud resources and simplifying network deployment. When using SFS to share files, a file system and the ECSs need to be in the same VPC.</p>
<p id="sfs_01_0036__p694313172198">In addition, VPC can use network access control lists (ACLs) to implement access control. A network ACL is an access control policy system for one or more subnets. Based on inbound and outbound rules, it determines whether data packets are allowed in or out of any associated subnet. In the VPC list of a file system, each time an authorized address is added and corresponding permissions are set, a network ACL is created.</p>
<p id="sfs_01_0036__p85972038153720">For more information about VPC, see the <em id="sfs_01_0036__i98899183816">Virtual Private Cloud User Guide</em>.</p>
<div class="section" id="sfs_01_0036__section89101543712"><h4 class="sectiontitle">Scenarios</h4><p id="sfs_01_0036__p11815182495217">Multi-VPC access can be configured for an SFS Capacity-Oriented or a general purpose file system so that ECSs in different VPCs can share the same file system, as long as the VPCs that the ECSs belong to are added as authorized VPCs of the file system or the ECS IP addresses are added as authorized IP addresses of the VPCs.</p>
<p id="sfs_01_0036__p2790419134817">This section describes how to configure multi-VPC access for an SFS Capacity-Oriented or a general purpose file system.</p>
<div class="section" id="sfs_01_0036__section89101543712"><h4 class="sectiontitle">Scenarios</h4><p id="sfs_01_0036__p11815182495217">You can configure multiple VPCs for an SFS Capacity-Oriented or general purpose file system so that ECSs in different VPCs can share the same file system, as long as the VPCs are added as authorized VPCs or the ECS IP addresses are added as authorized IP addresses of the VPC.</p>
<p id="sfs_01_0036__p2790419134817">This section describes how to configure multi-VPC access for an SFS Capacity-Oriented, or a general purpose file system.</p>
</div>
<div class="section" id="sfs_01_0036__section1888617013249"><h4 class="sectiontitle">Restrictions</h4><ul id="sfs_01_0036__ul4452192218241"><li id="sfs_01_0036__li1145242219242">You can add a maximum of 20 VPCs for each file system. A maximum of 400 ACL rules for added VPCs can be created. When adding a VPC, the default IP address 0.0.0.0/0 is automatically added.</li><li id="sfs_01_0036__li3452622182415">If a VPC added to a file system has been deleted from the VPC console, the IP addresses or IP address ranges of this VPC can still be seen as activated in the file system's VPC list. But this VPC can no longer be used and you are advised to delete it from the list.</li><li id="sfs_01_0036__li376319163355">You need to configure a VPC endpoint for each VPC you want to create the general purpose file system. Or, the file system will fail to be mounted.</li></ul>
<div class="section" id="sfs_01_0036__section1888617013249"><h4 class="sectiontitle">Constraints</h4><ul id="sfs_01_0036__ul4452192218241"><li id="sfs_01_0036__li1145242219242">You can add a maximum of 20 VPCs for each file system. A maximum of 400 ACL rules for added VPCs can be created. When adding a VPC, the default IP address 0.0.0.0/0 is automatically added.</li><li id="sfs_01_0036__li3452622182415">If a VPC added to a file system has been deleted from the VPC console, the IP addresses or IP address ranges of this VPC can still be seen as active in the file system's VPC list. But this VPC can no longer be used and you are advised to delete it from the list.</li><li id="sfs_01_0036__li376319163355">You need to configure a VPC endpoint for each VPC you want to add as an authorized VPC of a general purpose file system. Or, the file system will fail to be mounted.</li></ul>
</div>
<div class="section" id="sfs_01_0036__section696112185365"><h4 class="sectiontitle">Procedure for SFS Capacity-Oriented</h4><ol id="sfs_01_0036__ol129571239183614"><li id="sfs_01_0036__li430994684419"><span>Log in to the SFS console.</span></li><li id="sfs_01_0036__li24762113720"><span>In the file system list, click the name of the target file system. On the displayed page, locate the <strong id="sfs_01_0036__b233916151456">Authorizations</strong> area.</span></li><li id="sfs_01_0036__li850502324818"><span>If no VPCs are available, create one. You can add multiple VPCs for a file system. Click <span class="uicontrol" id="sfs_01_0036__uicontrol14522195763120"><b>Add Authorized VPC</b></span> and the <span class="wintitle" id="sfs_01_0036__wintitle4726126183019"><b>Add Authorized VPC</b></span> dialog box is displayed. See <a href="#sfs_01_0036__fig8892193084618">Figure 1</a>.</span><p><p id="sfs_01_0036__p598710161333">You can select multiple VPCs from the drop-down list.</p>
<div class="fignone" id="sfs_01_0036__fig8892193084618"><a name="sfs_01_0036__fig8892193084618"></a><a name="fig8892193084618"></a><span class="figcap"><b>Figure 1 </b>Adding VPCs</span><br><span><img id="sfs_01_0036__image6568125384015" src="en-us_image_0251350300.png" width="424.935" height="183.820364" title="Click to enlarge" class="imgResize"></span></div>
<div class="section" id="sfs_01_0036__section696112185365"><h4 class="sectiontitle">Procedure for SFS Capacity-Oriented</h4><ol id="sfs_01_0036__ol129571239183614"><li id="sfs_01_0036__li430994684419"><span>Log in to the SFS console.</span></li><li id="sfs_01_0036__li24762113720"><span>In the file system list, click the name of the target file system. On the displayed page, locate the <strong id="sfs_01_0036__b233916151456">Authorizations</strong> area.</span></li><li id="sfs_01_0036__li850502324818"><span>If no VPCs are available, create one. You can add multiple VPCs for a file system. Click <span class="uicontrol" id="sfs_01_0036__uicontrol768218136426"><b>Add Authorized VPC</b></span> to open the <span class="wintitle" id="sfs_01_0036__wintitle136831913134211"><b>Add Authorized VPC</b></span> dialog box, as shown in <a href="#sfs_01_0036__fig8892193084618">Figure 1</a>.</span><p><p id="sfs_01_0036__p598710161333">You can select multiple VPCs from the drop-down list.</p>
<div class="fignone" id="sfs_01_0036__fig8892193084618"><a name="sfs_01_0036__fig8892193084618"></a><a name="fig8892193084618"></a><span class="figcap"><b>Figure 1 </b>Adding VPCs</span><br><span><img id="sfs_01_0036__image6568125384015" src="en-us_image_0251350300.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0036__li1375034443414"><span>Click <span class="uicontrol" id="sfs_01_0036__uicontrol1672354401102455"><b>OK</b></span>. A successfully added VPC is displayed in the list. When adding a VPC, the default IP address <strong id="sfs_01_0036__b191582019999">0.0.0.0/0</strong> is automatically added. The default read/write permission is <strong id="sfs_01_0036__b1323805420918">Read-write</strong>, the default user permission is <strong id="sfs_01_0036__b9232101121015">no_all_squash</strong>, and the default root permission is <strong id="sfs_01_0036__b887187131017">no_root_squash</strong>.</span></li><li id="sfs_01_0036__li172115388229"><span>View the VPC information in the VPC list. For details about the parameters, see <a href="#sfs_01_0036__table99851739124510">Table 1</a>.</span><p>
<div class="tablenoborder"><a name="sfs_01_0036__table99851739124510"></a><a name="table99851739124510"></a><table cellpadding="4" cellspacing="0" summary="" id="sfs_01_0036__table99851739124510" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Parameter description</caption><thead align="left"><tr id="sfs_01_0036__row18986439164514"><th align="left" class="cellrowborder" valign="top" width="50%" id="mcps1.3.6.2.5.2.1.2.3.1.1"><p id="sfs_01_0036__p13986133914512">Parameter</p>
</th>
@ -36,7 +36,7 @@
</tbody>
</table>
</div>
</p></li><li id="sfs_01_0036__li1592219953017"><span>Click <span><img id="sfs_01_0036__image444354516361" src="en-us_image_0222409582.png"></span> on the left of the VPC name to view details about the IP addresses/segments added to this VPC. You can add, edit, or delete IP addresses/segments. In the <span class="parmname" id="sfs_01_0036__parmname298195713010"><b>Operation</b></span> column of the target VPC, click <span class="uicontrol" id="sfs_01_0036__uicontrol20982185753017"><b>Add</b></span>. The <span class="uicontrol" id="sfs_01_0036__uicontrol1857612373316"><b>Add Authorized Address/Segment</b></span> dialog box is displayed. See <a href="#sfs_01_0036__fig3912714184914">Figure 2</a>. <a href="#sfs_01_0036__table1242824684814">Table 2</a> describes the parameters to be configured.</span><p><div class="fignone" id="sfs_01_0036__fig3912714184914"><a name="sfs_01_0036__fig3912714184914"></a><a name="fig3912714184914"></a><span class="figcap"><b>Figure 2 </b>Adding an authorized address or segment</span><br><span><img id="sfs_01_0036__image189820251427" src="en-us_image_0251351310.png" width="491.76750000000004" height="182.672175" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0036__li1592219953017"><span>Click <span><img id="sfs_01_0036__image444354516361" src="en-us_image_0222409582.png"></span> on the left of the VPC name to view details about the IP addresses/segments added to this VPC. You can add, edit, or delete IP addresses/segments. In the <span class="parmname" id="sfs_01_0036__parmname298195713010"><b>Operation</b></span> column of the target VPC, click <span class="uicontrol" id="sfs_01_0036__uicontrol20982185753017"><b>Add</b></span>. The <span class="uicontrol" id="sfs_01_0036__uicontrol1857612373316"><b>Add Authorized Address/Segment</b></span> dialog box is displayed, as shown in <a href="#sfs_01_0036__fig3912714184914">Figure 2</a>. <a href="#sfs_01_0036__table1242824684814">Table 2</a> describes the parameters to be configured.</span><p><div class="fignone" id="sfs_01_0036__fig3912714184914"><a name="sfs_01_0036__fig3912714184914"></a><a name="fig3912714184914"></a><span class="figcap"><b>Figure 2 </b>Adding an authorized address or segment</span><br><span><img id="sfs_01_0036__image189820251427" src="en-us_image_0251351310.png" title="Click to enlarge" class="imgResize"></span></div>
<div class="tablenoborder"><a name="sfs_01_0036__table1242824684814"></a><a name="table1242824684814"></a><table cellpadding="4" cellspacing="0" summary="" id="sfs_01_0036__table1242824684814" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Parameter description</caption><thead align="left"><tr id="sfs_01_0036__row18428154644810"><th align="left" class="cellrowborder" valign="top" width="25%" id="mcps1.3.6.2.6.2.2.2.3.1.1"><p id="sfs_01_0036__p842884615488">Parameter</p>
</th>
@ -46,7 +46,7 @@
</thead>
<tbody><tr id="sfs_01_0036__row242814617489"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.6.2.6.2.2.2.3.1.1 "><p id="sfs_01_0036__p11428104616485">Authorized Address/Segment</p>
</td>
<td class="cellrowborder" valign="top" width="75%" headers="mcps1.3.6.2.6.2.2.2.3.1.2 "><ul id="sfs_01_0036__ul13324116192216"><li id="sfs_01_0036__li1261189122212">Enter one IPv4 address or address segment at a time.</li><li id="sfs_01_0036__li357151522214">The entered IPv4 address or address segment must be valid and cannot be one starting with 0 except 0.0.0.0/0. If you add <strong id="sfs_01_0036__b24422010192617">0.0.0.0/0</strong>, any IP address within this VPC will be authorized for accessing the file system. Class D and class E IP addresses are not supported. Therefore, do not enter an IP address or address segment starting with any number ranging from 224 to 255, for example 224.0.0.1 or 255.255.255.255. IP addresses or address segments starting with 127 are also not supported. If an invalid IP address or address segment is used, the access rule may fail to be added or the added access rule cannot take effect.</li><li id="sfs_01_0036__li49791420172214">Do not enter multiple IP addresses (separated using commas) at a time. For example, do not enter 10.0.1.32,10.5.5.10.</li><li id="sfs_01_0036__li1832413612223">If you enter an IP address segment, enter it in the format of <em id="sfs_01_0036__i39008571274">IP address/mask</em>. For example, enter 192.168.1.0/24. Do not enter in the format of 192.168.1.0-255 or 192.168.1.0-192.168.1.255. The number of bits in a subnet mask must be an integer ranging from 0 to 31, and mask value <strong id="sfs_01_0036__b18561934112812">0</strong> is valid only in 0.0.0.0/0.</li></ul>
<td class="cellrowborder" valign="top" width="75%" headers="mcps1.3.6.2.6.2.2.2.3.1.2 "><ul id="sfs_01_0036__ul13324116192216"><li id="sfs_01_0036__li1261189122212">Enter one IPv4 address or range in each line.</li><li id="sfs_01_0036__li357151522214">Enter a valid IPv4 address or range that is not starting with 0 except 0.0.0.0/0. If you add <strong id="sfs_01_0036__b687402073512">0.0.0.0/0</strong>, any IP address within this VPC will be authorized to access the file system. Do not enter an IP address or IP address range starting with any number ranging from 224 to 255, for example 224.0.0.1 or 255.255.255.255, because class D and class E IP addresses are not supported. IP addresses starting with 127 are also not supported. If you enter an invalid IP address or IP address range, the permission rule may fail to be added, or the authorization will not work.</li><li id="sfs_01_0036__li49791420172214">Do not enter multiple IP addresses (separated using commas) at a time. For example, do not enter 10.0.1.32,10.5.5.10.</li><li id="sfs_01_0036__li1832413612223">If you enter an IP address range, enter it in the format of <em id="sfs_01_0036__i1830420127450">IP address/mask</em>. For example, enter 192.168.1.0/24. Do not use the following format:192.168.1.0-255 or 192.168.1.0-192.168.1.255. The number of bits in a subnet mask must be an integer ranging from 0 to 31, and mask value <strong id="sfs_01_0036__b18561934112812">0</strong> is valid only in 0.0.0.0/0.</li></ul>
</td>
</tr>
<tr id="sfs_01_0036__row144285465480"><td class="cellrowborder" valign="top" width="25%" headers="mcps1.3.6.2.6.2.2.2.3.1.1 "><p id="sfs_01_0036__p4428946144813">Read-Write Permission</p>
@ -75,11 +75,11 @@
</tbody>
</table>
</div>
<div class="note" id="sfs_01_0036__note3469176175419"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="sfs_01_0036__p446936195411">For an ECS in VPC A, its IP address can be added to the authorized IP address list of VPC B, but the file system of VPC B cannot be mounted to this ECS. The VPC of the ECS and the file system must be the same.</p>
<div class="note" id="sfs_01_0036__note3469176175419"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="sfs_01_0036__p446936195411">For an ECS in VPC A, its IP address can be added as an authorized IP address of VPC B, but the file system in VPC B cannot be mounted to this ECS. The VPC used by the ECS and the file system must be the same.</p>
</div></div>
</p></li></ol>
</div>
<div class="section" id="sfs_01_0036__section11759422154916"><h4 class="sectiontitle"><strong id="sfs_01_0036__b19852168154713">Procedure for General Purpose File System</strong></h4><ol id="sfs_01_0036__ol1721117576498"><li id="sfs_01_0036__li11301235507"><span>Log in to the SFS console.</span></li><li id="sfs_01_0036__li14302375013"><span>In the file system list, click the name of the target file system. On the displayed page, locate the permissions list.</span></li><li id="sfs_01_0036__li63014314501"><span>If no VPCs are available, create one. Click <strong id="sfs_01_0036__b19318171304518">Add VPC</strong>. </span><p><div class="p" id="sfs_01_0036__p152538151797"><a href="#sfs_01_0036__table334110121292">Table 3</a> describes the parameters.<div class="fignone" id="sfs_01_0036__fig417519435173"><span class="figcap"><b>Figure 3 </b>Add VPC</span><br><span><img id="sfs_01_0036__image161759436179" src="en-us_image_0000001921916500.png" width="NaN" height="NaN"></span></div>
<div class="section" id="sfs_01_0036__section11759422154916"><h4 class="sectiontitle">Procedure for General Purpose File System</h4><ol id="sfs_01_0036__ol1721117576498"><li id="sfs_01_0036__li11301235507"><span>Log in to the SFS console.</span></li><li id="sfs_01_0036__li14302375013"><span>In the file system list, click the name of the target file system. On the displayed page, locate the permissions list.</span></li><li id="sfs_01_0036__li63014314501"><span>If no VPCs are available, create one. Click <strong id="sfs_01_0036__b19318171304518">Add VPC</strong>. </span><p><div class="p" id="sfs_01_0036__p152538151797"><a href="#sfs_01_0036__table334110121292">Table 3</a> describes the parameters.<div class="fignone" id="sfs_01_0036__fig417519435173"><span class="figcap"><b>Figure 3 </b>Add VPC</span><br><span><img id="sfs_01_0036__image161759436179" src="en-us_image_0000001921916500.png"></span></div>
<div class="tablenoborder"><a name="sfs_01_0036__table334110121292"></a><a name="table334110121292"></a><table cellpadding="4" cellspacing="0" summary="" id="sfs_01_0036__table334110121292" frame="border" border="1" rules="all"><caption><b>Table 3 </b>Parameter description</caption><thead align="left"><tr id="sfs_01_0036__row203413125913"><th align="left" class="cellrowborder" valign="top" width="32.34%" id="mcps1.3.7.2.3.2.1.3.2.3.1.1"><p id="sfs_01_0036__p193411612190">Parameter</p>
</th>
@ -94,7 +94,7 @@
</tr>
<tr id="sfs_01_0036__row73414121913"><td class="cellrowborder" valign="top" width="32.34%" headers="mcps1.3.7.2.3.2.1.3.2.3.1.1 "><p id="sfs_01_0036__p934114121995">Authorizations</p>
</td>
<td class="cellrowborder" valign="top" width="67.66%" headers="mcps1.3.7.2.3.2.1.3.2.3.1.2 "><p id="sfs_01_0036__p23417121190">The value can be <strong id="sfs_01_0036__b206066643">Read/Write</strong> or <strong id="sfs_01_0036__b775133490">Read-only</strong>. The default value is <strong id="sfs_01_0036__b263533520479">Read/Write</strong>.</p>
<td class="cellrowborder" valign="top" width="67.66%" headers="mcps1.3.7.2.3.2.1.3.2.3.1.2 "><p id="sfs_01_0036__p23417121190">The value can be <strong id="sfs_01_0036__b937018681">Read/Write</strong> or <strong id="sfs_01_0036__b1037635588">Read-only</strong>. The default value is <strong id="sfs_01_0036__b263533520479">Read/Write</strong>.</p>
</td>
</tr>
</tbody>
@ -102,7 +102,7 @@
</div>
</div>
</p></li><li id="sfs_01_0036__li17791163513554"><span>Click <strong id="sfs_01_0036__b13596140164819">OK</strong>. The added VPC will be displayed in the list.</span></li><li id="sfs_01_0036__li750448103019"><span>On the <strong id="sfs_01_0036__sfs_01_0134_b17960015173018">VPC Endpoints</strong> page, click <strong id="sfs_01_0036__sfs_01_0134_b105501445613">Create VPC Endpoint</strong>.</span><p><p id="sfs_01_0036__sfs_01_0134_p1697810301514">The <strong id="sfs_01_0036__sfs_01_0134_b820862917715">Create VPC Endpoint</strong> page is displayed.</p>
<div class="fignone" id="sfs_01_0036__sfs_01_0134_fig6144253519"><span class="figcap"><b>Figure 4 </b>Create VPC Endpoint</span><br><span><img id="sfs_01_0036__sfs_01_0134_image61415251057" src="en-us_image_0000001310873016.png" height="215.46" width="523.6875" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0036__sfs_01_0134_fig6144253519"><span class="figcap"><b>Figure 4 </b>Create VPC Endpoint</span><br><span><img id="sfs_01_0036__sfs_01_0134_image61415251057" src="en-us_image_0000001310873016.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0036__li46931240153215"><span>Set the parameters as prompted.</span><p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="sfs_01_0036__table82532035135015" frame="border" border="1" rules="all"><caption><b>Table 4 </b>Parameters for purchasing an endpoint</caption><thead align="left"><tr id="sfs_01_0036__row192531335115014"><th align="left" class="cellrowborder" valign="top" width="22.46%" id="mcps1.3.7.2.6.2.1.2.3.1.1"><p id="sfs_01_0036__p925311354506">Parameter</p>
</th>
@ -134,7 +134,7 @@
<p id="sfs_01_0036__p969362495911">VPC endpoint tags. Each tag consists of a key and a value. </p>
<p id="sfs_01_0036__p16931524195910">Tag keys and values must meet the requirements listed in <a href="#sfs_01_0036__table191162312815">Table 5</a>.</p>
<div class="note" id="sfs_01_0036__note42271850205911"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="sfs_01_0036__p19693924165914">If a predefined tag has been created in TMS, you can select the corresponding tag key and value.</p>
<p id="sfs_01_0036__p3133195515919">For details about predefined tags, see section "Predefined Tag Overview" in the <em id="sfs_01_0036__i14684646141617">Tag Management Service User Guide</em>.</p>
<p id="sfs_01_0036__p3133195515919">For details about predefined tags, see section "Predefined Tag Overview" in the <em id="sfs_01_0036__i1404615171519">Tag Management Service User Guide</em>.</p>
</div></div>
</td>
</tr>

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docs/sfs/umn/sfs_01_0038.html
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@ -2,29 +2,29 @@
<h1 class="topictitle1">Configuring DNS</h1>
<div id="body1490759105013"><p id="sfs_01_0038__p10375093214127">A DNS server is used to resolve domain names of file systems. The DNS server IP address is 100.125.4.25.</p>
<div class="section" id="sfs_01_0038__section101013319538"><h4 class="sectiontitle">Scenarios</h4><p id="sfs_01_0038__p55316600215729">By default, the IP address of the DNS server used to resolve domain names of file systems is automatically configured on ECSs when creating ECSs. No manual configuration is needed except when the resolution fails due to a change in the DNS server IP address.</p>
<div class="section" id="sfs_01_0038__section101013319538"><h4 class="sectiontitle">Scenarios</h4><p id="sfs_01_0038__p55316600215729">By default, the IP address of the DNS server used to resolve domain names of file systems is automatically configured on ECSs when they are created. No manual configuration is needed except when the resolution fails due to a change in the DNS server IP address.</p>
<p id="sfs_01_0038__p11909337165010">Windows Server 2012 is used as an example in the operation procedures for Windows.</p>
</div>
<div class="section" id="sfs_01_0038__section60237810114859"><h4 class="sectiontitle">Procedure (Linux)</h4><ol id="sfs_01_0038__ol1581081114912"><li id="sfs_01_0038__li45338061114912"><span>Log in to the ECS as user <strong id="sfs_01_0038__b84235270611308">root</strong>.</span></li><li id="sfs_01_0038__li13553756203149"><a name="sfs_01_0038__li13553756203149"></a><a name="li13553756203149"></a><span>Run the <strong id="sfs_01_0038__b18140232181594">vi /etc/resolv.conf</strong> command to edit the <strong id="sfs_01_0038__b84235270615915">/etc/resolv.conf</strong> file. Add the DNS server IP address above the existing nameserver information. See <a href="#sfs_01_0038__fig3735131720121">Figure 1</a>.</span><p><div class="fignone" id="sfs_01_0038__fig3735131720121"><a name="sfs_01_0038__fig3735131720121"></a><a name="fig3735131720121"></a><span class="figcap"><b>Figure 1 </b>Configuring DNS</span><br><span><img id="sfs_01_0038__image64563695201246" src="en-us_image_0078780345.png" width="NaN" height="NaN"></span></div>
<div class="section" id="sfs_01_0038__section60237810114859"><h4 class="sectiontitle">Procedure (Linux)</h4><ol id="sfs_01_0038__ol1581081114912"><li id="sfs_01_0038__li45338061114912"><span>Log in to the ECS as user <strong id="sfs_01_0038__b84235270611308">root</strong>.</span></li><li id="sfs_01_0038__li13553756203149"><a name="sfs_01_0038__li13553756203149"></a><a name="li13553756203149"></a><span>Run the <strong id="sfs_01_0038__b18140232181594">vi /etc/resolv.conf</strong> command to edit the <strong id="sfs_01_0038__b84235270615915">/etc/resolv.conf</strong> file. Add the DNS server IP address above the existing nameserver information. See <a href="#sfs_01_0038__fig3735131720121">Figure 1</a>.</span><p><div class="fignone" id="sfs_01_0038__fig3735131720121"><a name="sfs_01_0038__fig3735131720121"></a><a name="fig3735131720121"></a><span class="figcap"><b>Figure 1 </b>Configuring DNS</span><br><span><img id="sfs_01_0038__image64563695201246" src="en-us_image_0078780345.png"></span></div>
<div class="p" id="sfs_01_0038__p22406822201147">The format is as follows:<pre class="screen" id="sfs_01_0038__screen1852931020934">nameserver 100.125.4.25</pre>
</div>
</p></li><li id="sfs_01_0038__li54437320151016"><span>Press <strong id="sfs_01_0038__b51116037112652">Esc</strong>, input <strong id="sfs_01_0038__b58164000112657">:wq</strong>, and press <strong id="sfs_01_0038__b6357507311271">Enter</strong> to save the changes and exit the vi editor.</span></li><li id="sfs_01_0038__li46763803151028"><span>Run the following command to check whether the IP address is successfully added:</span><p><p id="sfs_01_0038__p346907151042"><strong id="sfs_01_0038__b3122170151042">cat /etc/resolv.conf</strong></p>
</p></li><li id="sfs_01_0038__li912842151110"><span>Run the following command to check whether an IP address can be resolved from the file system domain name:</span><p><p id="sfs_01_0038__p8215585151110"><strong id="sfs_01_0038__b1941612618151321">nslookup </strong><i><span class="varname" id="sfs_01_0038__varname1981592207151321">File system domain name</span></i></p>
<div class="note" id="sfs_01_0038__note1244325016745"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="sfs_01_0038__p4488038816745">Obtain the file system domain name from the file system mount point.</p>
</div></div>
</p></li><li id="sfs_01_0038__li58551120151138"><span>(Optional) In a network environment of the DHCP server, edit the <strong id="sfs_01_0038__b842352706151353">/etc/resolv.conf</strong> file to prevent the file from being automatically modified upon an ECS startup, and prevent the DNS server IP address added in <a href="#sfs_01_0038__li13553756203149">2</a> from being reset.</span><p><ol type="a" id="sfs_01_0038__ol45020311151138"><li id="sfs_01_0038__li2529615151138">Run the following command to lock the file:<div class="litext" id="sfs_01_0038__p22766537151138"><a name="sfs_01_0038__li2529615151138"></a><a name="li2529615151138"></a><strong id="sfs_01_0038__b1195616215467">chattr +i /etc/resolv.conf</strong><div class="note" id="sfs_01_0038__note642232411748"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="sfs_01_0038__p5780092011748">Run the <strong id="sfs_01_0038__b1677135565142529">chattr -i /etc/resolv.conf</strong> command to unlock the file if needed.</p>
</p></li><li id="sfs_01_0038__li58551120151138"><span>(Optional) In a network environment that uses the DHCP server, edit the <strong id="sfs_01_0038__b842352706151353">/etc/resolv.conf</strong> file to prevent the file from being automatically modified upon an ECS restart, and prevent the DNS server IP address added in <a href="#sfs_01_0038__li13553756203149">2</a> from being reset.</span><p><ol type="a" id="sfs_01_0038__ol45020311151138"><li id="sfs_01_0038__li2529615151138">Run the following command to lock the file:<div class="litext" id="sfs_01_0038__p22766537151138"><a name="sfs_01_0038__li2529615151138"></a><a name="li2529615151138"></a><strong id="sfs_01_0038__b1195616215467">chattr +i /etc/resolv.conf</strong><div class="note" id="sfs_01_0038__note642232411748"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="sfs_01_0038__p5780092011748">Run the <strong id="sfs_01_0038__b1677135565142529">chattr -i /etc/resolv.conf</strong> command to unlock the file if needed.</p>
</div></div>
</div>
</li><li id="sfs_01_0038__li32150224151138">Run the following command to check whether the editing is successful:<p id="sfs_01_0038__p20916567151138"><a name="sfs_01_0038__li32150224151138"></a><a name="li32150224151138"></a><strong id="sfs_01_0038__b54031380151138">lsattr /etc/resolv.conf</strong></p>
<p id="sfs_01_0038__p44716069155023">If the information shown in <a href="#sfs_01_0038__fig46855620155120">Figure 2</a> is displayed, the file is locked.</p>
<div class="fignone" id="sfs_01_0038__fig46855620155120"><a name="sfs_01_0038__fig46855620155120"></a><a name="fig46855620155120"></a><span class="figcap"><b>Figure 2 </b>A locked file</span><br><span><img id="sfs_01_0038__image42821016155223" src="en-us_image_0058331748.png" width="NaN" height="NaN"></span></div>
<div class="fignone" id="sfs_01_0038__fig46855620155120"><a name="sfs_01_0038__fig46855620155120"></a><a name="fig46855620155120"></a><span class="figcap"><b>Figure 2 </b>A locked file</span><br><span><img id="sfs_01_0038__image42821016155223" src="en-us_image_0058331748.png"></span></div>
</li></ol>
</p></li></ol>
</div>
<div class="section" id="sfs_01_0038__section75976550455"><h4 class="sectiontitle">Procedure (Windows)</h4><ol id="sfs_01_0038__ol74047905217"><li id="sfs_01_0038__li7010700104255"><span>Go to the ECS console and log in to the ECS running Windows Server 2012.</span></li><li id="sfs_01_0038__li47653636104358"><span>Click <span class="uicontrol" id="sfs_01_0038__uicontrol1189257975174532"><b>This PC</b></span> in the lower left corner.</span></li><li id="sfs_01_0038__li25395292416"><span>On the page that is displayed, right-click <span class="uicontrol" id="sfs_01_0038__uicontrol71018140217462"><b>Network</b></span> and choose <span class="uicontrol" id="sfs_01_0038__uicontrol1148255606174622"><b>Properties</b></span> from the drop-down list. The <strong id="sfs_01_0038__b842352706174656">Network and Sharing Center</strong> page is displayed, as shown in <a href="#sfs_01_0038__fig11811485719">Figure 3</a>. Click <span class="uicontrol" id="sfs_01_0038__uicontrol843515849174726"><b>Local Area Connection</b></span>.</span><p><div class="fignone" id="sfs_01_0038__fig11811485719"><a name="sfs_01_0038__fig11811485719"></a><a name="fig11811485719"></a><span class="figcap"><b>Figure 3 </b>Page for network and sharing center</span><br><span><img id="sfs_01_0038__image1152618144612" src="en-us_image_0110762886.png" height="163.33769900000001" width="446.88" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0038__li520013499581"><span>In the <span class="wintitle" id="sfs_01_0038__wintitle1810118853174842"><b>Activity</b></span> area, select <span class="uicontrol" id="sfs_01_0038__uicontrol1585015777174833"><b>Properties</b></span>. See <a href="#sfs_01_0038__fig18980173031015">Figure 4</a>.</span><p><div class="fignone" id="sfs_01_0038__fig18980173031015"><a name="sfs_01_0038__fig18980173031015"></a><a name="fig18980173031015"></a><span class="figcap"><b>Figure 4 </b>Local area connection</span><br><span><img id="sfs_01_0038__image29442016151614" src="en-us_image_0110763434.png" width="385.035" height="233.707334" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0038__li20775101391119"><span>In the <span class="wintitle" id="sfs_01_0038__wintitle2066108848174929"><b>Local Area Connection Properties</b></span> dialog box that is displayed, select <span class="uicontrol" id="sfs_01_0038__uicontrol37060007017501"><b>Internet Protocol Version 4 (TCP/IPv4)</b></span> and click <span class="uicontrol" id="sfs_01_0038__uicontrol494093555175027"><b>Properties</b></span>. See <a href="#sfs_01_0038__fig146301518171620">Figure 5</a>.</span><p><div class="fignone" id="sfs_01_0038__fig146301518171620"><a name="sfs_01_0038__fig146301518171620"></a><a name="fig146301518171620"></a><span class="figcap"><b>Figure 5 </b>Local area connection properties</span><br><span><img id="sfs_01_0038__image6853722141814" src="en-us_image_0110764366.png" width="346.1325" height="481.855276" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0038__li153671321182211"><span>In the dialog box that is displayed, select <span class="uicontrol" id="sfs_01_0038__uicontrol4277293817528"><b>Use the following DNS server addresses:</b></span> and configure DNS, as shown in <a href="#sfs_01_0038__fig82464042713">Figure 6</a>. The DNS server IP address is 100.125.4.25. After completing the configuration, click <span class="uicontrol" id="sfs_01_0038__uicontrol1792211319376"><b>OK</b></span>.</span><p><div class="fignone" id="sfs_01_0038__fig82464042713"><a name="sfs_01_0038__fig82464042713"></a><a name="fig82464042713"></a><span class="figcap"><b>Figure 6 </b>Configuring DNS on Windows</span><br><span><img id="sfs_01_0038__image1554312562167" src="en-us_image_0110765557.png" width="394.01250000000005" height="210.305984" title="Click to enlarge" class="imgResize"></span></div>
<div class="section" id="sfs_01_0038__section75976550455"><h4 class="sectiontitle">Procedure (Windows)</h4><ol id="sfs_01_0038__ol74047905217"><li id="sfs_01_0038__li7010700104255"><span>Go to the ECS console and log in to the ECS running Windows Server 2012.</span></li><li id="sfs_01_0038__li47653636104358"><span>Click <span class="uicontrol" id="sfs_01_0038__uicontrol1189257975174532"><b>This PC</b></span> in the lower left corner.</span></li><li id="sfs_01_0038__li25395292416"><span>On the page that is displayed, right-click <span class="uicontrol" id="sfs_01_0038__uicontrol71018140217462"><b>Network</b></span> and choose <span class="uicontrol" id="sfs_01_0038__uicontrol1148255606174622"><b>Properties</b></span> from the drop-down list. The <strong id="sfs_01_0038__b842352706174656">Network and Sharing Center</strong> page is displayed, as shown in <a href="#sfs_01_0038__fig11811485719">Figure 3</a>. Click <span class="uicontrol" id="sfs_01_0038__uicontrol843515849174726"><b>Local Area Connection</b></span>.</span><p><div class="fignone" id="sfs_01_0038__fig11811485719"><a name="sfs_01_0038__fig11811485719"></a><a name="fig11811485719"></a><span class="figcap"><b>Figure 3 </b>Page for network and sharing center</span><br><span><img id="sfs_01_0038__image1152618144612" src="en-us_image_0110762886.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0038__li520013499581"><span>In the <span class="wintitle" id="sfs_01_0038__wintitle1810118853174842"><b>Activity</b></span> area, select <span class="uicontrol" id="sfs_01_0038__uicontrol1585015777174833"><b>Properties</b></span>. See <a href="#sfs_01_0038__fig18980173031015">Figure 4</a>.</span><p><div class="fignone" id="sfs_01_0038__fig18980173031015"><a name="sfs_01_0038__fig18980173031015"></a><a name="fig18980173031015"></a><span class="figcap"><b>Figure 4 </b>Local area connection</span><br><span><img id="sfs_01_0038__image29442016151614" src="en-us_image_0110763434.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0038__li20775101391119"><span>In the <span class="wintitle" id="sfs_01_0038__wintitle2066108848174929"><b>Local Area Connection Properties</b></span> dialog box that is displayed, select <span class="uicontrol" id="sfs_01_0038__uicontrol37060007017501"><b>Internet Protocol Version 4 (TCP/IPv4)</b></span> and click <span class="uicontrol" id="sfs_01_0038__uicontrol494093555175027"><b>Properties</b></span>. See <a href="#sfs_01_0038__fig146301518171620">Figure 5</a>.</span><p><div class="fignone" id="sfs_01_0038__fig146301518171620"><a name="sfs_01_0038__fig146301518171620"></a><a name="fig146301518171620"></a><span class="figcap"><b>Figure 5 </b>Local area connection properties</span><br><span><img id="sfs_01_0038__image6853722141814" src="en-us_image_0110764366.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0038__li153671321182211"><span>In the dialog box that is displayed, select <span class="uicontrol" id="sfs_01_0038__uicontrol4277293817528"><b>Use the following DNS server addresses:</b></span> and configure DNS, as shown in <a href="#sfs_01_0038__fig82464042713">Figure 6</a>. The DNS server IP address is 100.125.4.25. After completing the configuration, click <span class="uicontrol" id="sfs_01_0038__uicontrol1792211319376"><b>OK</b></span>.</span><p><div class="fignone" id="sfs_01_0038__fig82464042713"><a name="sfs_01_0038__fig82464042713"></a><a name="fig82464042713"></a><span class="figcap"><b>Figure 6 </b>Configuring DNS on Windows</span><br><span><img id="sfs_01_0038__image1554312562167" src="en-us_image_0110765557.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li></ol>
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<h1 class="topictitle1">File System Resizing</h1>
<div id="body1495785080630"><div class="section" id="sfs_01_0039__section146683055320"><h4 class="sectiontitle">Scenarios</h4><p id="sfs_01_0039__p1981134615317">You can expand or shrink the capacity of a file system when needed.</p>
</div>
<div class="section" id="sfs_01_0039__section105160593533"><h4 class="sectiontitle">Constraints</h4><p id="sfs_01_0039__p119614380549">SFS Turbo file systems can only have their capacities expanded, not reduced. And only <strong id="sfs_01_0039__b11217101910309">In-use</strong> file systems can be expanded.</p>
<p id="sfs_01_0039__p14584185652417">SFS Capacity-Oriented file systems support resizing, during which services are not affected. Only <strong id="sfs_01_0039__b18544125143013">In-use</strong> file systems can be expanded.</p>
<p id="sfs_01_0039__p14678559113312">SFS Turbo file systems support online capacity expansion, during which mounting a file system may fail and the connection being used for mounting will experience about a 30-second (max. 3 minutes) I/O delay. So you are advised to expand capacity during off-peak hours. Note that only <strong id="sfs_01_0039__b20455627133015">In-use</strong> file systems can be expanded. </p>
<div class="section" id="sfs_01_0039__section105160593533"><h4 class="sectiontitle">Constraints</h4><p id="sfs_01_0039__p119614380549">SFS Turbo file systems can only have their capacities expanded, not reduced. And only in-use file systems can be expanded.</p>
<p id="sfs_01_0039__p14584185652417">SFS Capacity-Oriented file systems support resizing, during which services are not affected. Only in-use file systems can be expanded.</p>
<p id="sfs_01_0039__p14678559113312">SFS Turbo file systems support online capacity expansion, during which mounting a file system may fail and the connection being used for mounting will experience about a 30-second (max. 3 minutes) I/O delay. So you are advised to expand capacity during off-peak hours. Note that only in-use file systems can be expanded. </p>
<p id="sfs_01_0039__p185713597511">General purpose file systems have no capacity limit and do not support resizing.</p>
</div>
<div class="section" id="sfs_01_0039__section20105436211757"><h4 class="sectiontitle">Precautions</h4><p id="sfs_01_0039__p15696181513518">The rules for resizing an SFS Capacity-Oriented file system are as follows:</p>
@ -15,8 +15,8 @@
</li></ul>
</li></ul>
</div>
<div class="section" id="sfs_01_0039__en-us_topic_0051702894_section1607836314443"><h4 class="sectiontitle">Procedure</h4><ol id="sfs_01_0039__en-us_topic_0051702894_ol5393472514459"><li id="sfs_01_0039__li1532942215818"><span>Log in to the SFS console.</span></li><li id="sfs_01_0039__en-us_topic_0051702894_li1963174014342"><span>In the file system list, click <strong id="sfs_01_0039__b172225623119">Resize</strong> or <strong id="sfs_01_0039__b165621133218">Expand Capacity</strong> in the row of the desired file system. The following dialog box is displayed </span><p><div class="fignone" id="sfs_01_0039__fig50999458171929"><span class="figcap"><b>Figure 1 </b>Resizing an SFS Capacity-Oriented file system</span><br><span><img id="sfs_01_0039__image852541219111" src="en-us_image_0251359565.png" width="365.08500000000004" height="224.40358500000002" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0039__fig7172931162418"><span class="figcap"><b>Figure 2 </b>Expanding an SFS Turbo file system</span><br><span><img id="sfs_01_0039__image8172163117245" src="en-us_image_0000001921925536.png" height="631.4175" width="523.6875" title="Click to enlarge" class="imgResize"></span></div>
<div class="section" id="sfs_01_0039__en-us_topic_0051702894_section1607836314443"><h4 class="sectiontitle">Procedure</h4><ol id="sfs_01_0039__en-us_topic_0051702894_ol5393472514459"><li id="sfs_01_0039__li1532942215818"><span>Log in to the SFS console.</span></li><li id="sfs_01_0039__en-us_topic_0051702894_li1963174014342"><span>In the file system list, click <strong id="sfs_01_0039__b118681632185111">Resize</strong> or <strong id="sfs_01_0039__b2086913328515">Expand Capacity</strong> in the row of the desired file system. A dialog box is displayed. </span><p><div class="fignone" id="sfs_01_0039__fig50999458171929"><span class="figcap"><b>Figure 1 </b>Resizing an SFS Capacity-Oriented file system</span><br><span><img id="sfs_01_0039__image852541219111" src="en-us_image_0251359565.png" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0039__fig7172931162418"><span class="figcap"><b>Figure 2 </b>Expanding an SFS Turbo file system</span><br><span><img id="sfs_01_0039__image8172163117245" src="en-us_image_0000001921925536.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0039__li84463396281"><span>Enter a new capacity and click <strong id="sfs_01_0039__b92784382017">OK</strong>. The following tables describe the parameters.</span><p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="sfs_01_0039__table152311436164018" frame="border" border="1" rules="all"><caption><b>Table 1 </b>SFS Capacity-Oriented file system resizing parameters</caption><thead align="left"><tr id="sfs_01_0039__row923110360401"><th align="left" class="cellrowborder" valign="top" width="27.49%" id="mcps1.3.4.2.3.2.1.2.3.1.1"><p id="sfs_01_0039__p5231173694011">Parameter</p>
</th>
@ -59,7 +59,7 @@
<tr id="sfs_01_0039__row14548173552920"><td class="cellrowborder" valign="top" width="27.439999999999998%" headers="mcps1.3.4.2.3.2.2.2.3.1.1 "><p id="sfs_01_0039__p18404459836">New Capacity</p>
</td>
<td class="cellrowborder" valign="top" width="72.56%" headers="mcps1.3.4.2.3.2.2.2.3.1.2 "><p id="sfs_01_0039__p440417591319">New storage capacity of the file system</p>
<div class="p" id="sfs_01_0039__p08062238817">Value constraints:<ul id="sfs_01_0039__ul188061223685"><li id="sfs_01_0039__li38061223484">For a Standard, Standard-Enhanced, Performance, or Performance-Enhanced file system, the minimum expansion increment is 100 GB. A Standard or Performance file system can be expanded to up to 32 TB, and a Standard - Enhanced or Performance - Enhanced file system can be expanded to up to 320 TB.</li><li id="sfs_01_0039__li780615235817">For a 20 MB/s/TiB, 40 MB/s/TiB, 125 MB/s/TiB, or 250 MB/s/TiB file system, the expansion increment is 1.2 TB, and a file system can be expanded to up to 1 PB.</li></ul>
<div class="p" id="sfs_01_0039__p08062238817">Value constraints:<ul id="sfs_01_0039__ul188061223685"><li id="sfs_01_0039__li38061223484">For a Standard, Standard-Enhanced, Performance, or Performance-Enhanced file system, the minimum expansion increment is 100 GB. A Standard or Performance file system can be expanded to up to 32 TB, and a Standard-Enhanced or Performance-Enhanced file system can be expanded to up to 320 TB.</li><li id="sfs_01_0039__li780615235817">For a 20 MB/s/TiB, 40 MB/s/TiB, 125 MB/s/TiB, or 250 MB/s/TiB file system, the expansion increment is 1.2 TB, and the increment must be an integer multiple of 1.2 TB. The new capacity can be no more than 1 PB.</li></ul>
</div>
</td>
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<h1 class="topictitle1">Encryption</h1>
<div id="body1524470302967"><div class="section" id="sfs_01_0042__section909365011371"><h4 class="sectiontitle">Creating an Encrypted File System</h4><p id="sfs_01_0042__p15712723111414">To use the file system encryption function, you need to authorize SFS Capacity-Oriented to access KMS when creating an SFS Capacity-Oriented file system. If you have the Security Administrator rights, grant SFS the permissions to access KMS directly. Otherwise, you need to contact the system administrator to obtain the "Security Administrator" rights first. For details, see <a href="sfs_01_0006.html">File System Encryption</a>.</p>
<p id="sfs_01_0042__p126334150164">SFS Turbo file systems do not require authorization.</p>
<p id="sfs_01_0042__p1165064382810">You can create an encrypted or non-encrypted file system, but you cannot change the encryption settings of an existing file system.</p>
<p id="sfs_01_0042__p1165064382810">You can create a file system that is encrypted or not, but you cannot change the encryption attribute of an existing file system.</p>
<p id="sfs_01_0042__p663854212927">For details about how to create an encrypted file system, see <a href="en-us_topic_0034428727.html">Create a File System</a>.</p>
</div>
<div class="section" id="sfs_01_0042__section54711302212445"><h4 class="sectiontitle">Unmounting an Encrypted File System</h4><p id="sfs_01_0042__p5595223565">If the custom key used by the encrypted file system is disabled or scheduled for deletion, the file system can only be used within a certain period of time (30s by default). Exercise caution in this case.</p>
<p id="sfs_01_0042__p7119121543316">For details about how to unmount a file system, see <a href="sfs_01_0026.html">Unmount a File System</a></p>
<p id="sfs_01_0042__p7119121543316">For details about how to unmount the file system, see <a href="sfs_01_0026.html">Unmount a File System</a>.</p>
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<a name="sfs_01_0043"></a><a name="sfs_01_0043"></a>
<h1 class="topictitle1">Tags</h1>
<div id="body1521721681680"><p id="sfs_01_0043__p49142995222032">This section describes how to add tags to existing file systems. You can also add tags when creating file systems. For details, see section <a href="en-us_topic_0034428727.html">Create a File System</a>.</p>
<div id="body1521721681680"><p id="sfs_01_0043__p49142995222032">This section describes how to add tags to existing file systems. You can also add tags when creating file systems. For details, see <a href="en-us_topic_0034428727.html">Create a File System</a>.</p>
<p id="sfs_01_0043__p30708999221554">Tags are used to identify and classify file systems. </p>
<ul id="sfs_01_0043__ul75011012206"><li id="sfs_01_0043__li155017109202">Tags are composed of key-value pairs.<ul id="sfs_01_0043__ul18892151412567"><li id="sfs_01_0043__li2875161617560">A tag key can contain a maximum of 36 characters and cannot be left blank. It must start with a letter and can only contain letters, digits, hyphens (-), underscores (_), and at signs (@).</li><li id="sfs_01_0043__li073733065416">A tag value can contain a maximum of 43 characters and can be an empty string. It must start with a letter and can only contain letters, digits, hyphens (-), underscores (_), and at signs (@).</li></ul>
</li><li id="sfs_01_0043__li145971643143415">You can add a maximum of 20 tags to a file system.</li><li id="sfs_01_0043__li330153019356">The tag keys of the same file system must be unique.</li><li id="sfs_01_0043__li183412474235">Once created, the tag keys of the file system cannot be edited. You can only edit the tag values. You can delete tags.</li></ul>
<div class="section" id="sfs_01_0043__section177211557153613"><h4 class="sectiontitle">Procedure</h4><ol id="sfs_01_0043__ol1948574017370"><li id="sfs_01_0043__li6595412556"><span>Log in to the SFS console.</span></li><li id="sfs_01_0043__li121618063816"><span>In the file system list, find the file system to which you want to add tags and click the name of it. The file system details page is displayed, as shown in <a href="#sfs_01_0043__fig146683492144">Figure 1</a>.</span><p><div class="fignone" id="sfs_01_0043__fig146683492144"><a name="sfs_01_0043__fig146683492144"></a><a name="fig146683492144"></a><span class="figcap"><b>Figure 1 </b>Managing file system tags</span><br><span><img id="sfs_01_0043__image196618511152" src="en-us_image_0251361308.png" height="234.41250000000002" width="523.6875" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0043__li7585973201558"><span>Click the <strong id="sfs_01_0043__b842352706171615">Tags</strong> tab.</span></li><li id="sfs_01_0043__li12655052162539"><span>On the <strong id="sfs_01_0043__b144781655173518">Tags</strong> tab page, click <strong id="sfs_01_0043__b741211014363">Edit Tag</strong> to open the <strong id="sfs_01_0043__b1650710447362">Edit Tag</strong> dialog box.</span></li><li id="sfs_01_0043__li168141958175411"><span>Add the key and value of the tag and click <strong id="sfs_01_0043__b842352706105051">OK</strong>.</span><p><ul id="sfs_01_0043__ul1894110577579"><li id="sfs_01_0043__li1594119573575"><strong id="sfs_01_0043__b842352706201920">Key</strong>: This parameter is mandatory.</li><li id="sfs_01_0043__li1494195711574"><strong id="sfs_01_0043__b842352706201924">Value</strong>: This parameter is optional.</li></ul>
<ul id="sfs_01_0043__ul75011012206"><li id="sfs_01_0043__li155017109202">Tags are composed of key-value pairs.<ul id="sfs_01_0043__ul18892151412567"><li id="sfs_01_0043__li12973144718382">A tag key can contain a maximum of 128 characters and cannot be left blank. For a general purpose file system, a tag key can contain letters, digits, spaces, and special characters (_.:=+-@), but it cannot start or end with a space or start with _sys_. For an SFS Turbo file system, a tag key can contain only letters, digits, hyphens (-), underscores (_), and at signs (@).</li><li id="sfs_01_0043__li99734470380">A tag value can contain a maximum of 255 characters and can be an empty string. For a general purpose file system, a tag value can contain letters, digits, spaces, and special characters (_.:/=+-@), but it cannot start or end with a space. For an SFS Turbo file system, a tag value can contain only letters, digits, hyphens (-), and underscores (_).</li></ul>
</li><li id="sfs_01_0043__li145971643143415">You can add a maximum of 20 tags to a file system.</li><li id="sfs_01_0043__li330153019356">Tag keys of the same file system must be unique.</li><li id="sfs_01_0043__li891552312241">After adding a tag to a file system, you can edit the tag key and value, or delete the tag.</li></ul>
<div class="section" id="sfs_01_0043__section177211557153613"><h4 class="sectiontitle">Procedure</h4><ol id="sfs_01_0043__ol1948574017370"><li id="sfs_01_0043__li6595412556"><span>Log in to the SFS console.</span></li><li id="sfs_01_0043__li121618063816"><span>In the file system list, find the file system to which you want to add tags and click its name to go to its details page.</span><p><div class="fignone" id="sfs_01_0043__fig1959011123285"><span class="figcap"><b>Figure 1 </b>Tags of a general purpose file system</span><br><span><img id="sfs_01_0043__image15590181282817" src="en-us_image_0000002483494348.png" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0043__fig146683492144"><span class="figcap"><b>Figure 2 </b>Tags of an SFS Turbo file system</span><br><span><img id="sfs_01_0043__image196618511152" src="en-us_image_0251361308.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0043__li7585973201558"><span>Click the <strong id="sfs_01_0043__b842352706171615">Tags</strong> tab.</span></li><li id="sfs_01_0043__li12655052162539"><span id="sfs_01_0043__p178491401777">On the <strong id="sfs_01_0043__b58484019718">Tags</strong> tab, click <strong id="sfs_01_0043__b10848701172">Edit Tag</strong>.</span><p><p id="sfs_01_0043__li12655052162539p0">The Edit Tag dialog box is displayed.</p>
</p></li><li id="sfs_01_0043__li168141958175411"><span>Add the key and value of the tag and click <strong id="sfs_01_0043__b842352706105051">OK</strong>.</span><p><ul id="sfs_01_0043__ul1894110577579"><li id="sfs_01_0043__li1594119573575"><strong id="sfs_01_0043__b842352706201920">Key</strong>: This parameter is mandatory.</li><li id="sfs_01_0043__li1494195711574"><strong id="sfs_01_0043__b842352706201924">Value</strong>: This parameter is optional.</li></ul>
<p id="sfs_01_0043__p12942165735710">Return to the tag list, and you can see the tags you have just added. You can edit and delete the added tags.</p>
</p></li></ol>
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<a name="sfs_01_0044"></a><a name="sfs_01_0044"></a>
<h1 class="topictitle1">Backup</h1>
<div id="body1540810618629"><p id="sfs_01_0044__p102211515118">You can only back up SFS Turbo file systems using CBR while you cannot back up SFS Capacity-Oriented and general purpose file systems.</p>
<div class="section" id="sfs_01_0044__section13612528181110"><h4 class="sectiontitle">Scenarios</h4><p id="sfs_01_0044__p1415943317114">A backup is a complete copy of an SFS Turbo file system at a specific time and it records all configuration data and service data at that time. </p>
<p id="sfs_01_0044__p5925764018129">For example, if a file system is faulty or encounters a logical error (for example, mis-deletion, hacker attacks, and virus infection), you can use data backups to restore data quickly.</p>
<div id="body1540810618629"><p id="sfs_01_0044__p102211515118">You can only back up SFS Turbo file systems using CBR but you cannot back up SFS Capacity-Oriented and general purpose file systems.</p>
<div class="section" id="sfs_01_0044__section13612528181110"><h4 class="sectiontitle">Scenarios</h4><p id="sfs_01_0044__p1415943317114">A backup is a complete copy of an SFS Turbo file system at a specific time and it records all configuration data and service data at that time.</p>
<p id="sfs_01_0044__p5925764018129">For example, if a file system is faulty or encounters a logical error (like accidental deletion, hacker attack, or virus infection), you can use data backups to restore data quickly.</p>
</div>
<div class="section" id="sfs_01_0044__section14459114814915"><h4 class="sectiontitle">Creating a File System Backup</h4><p id="sfs_01_0044__p3819125312493">Ensure that the target file system is available. Or, the backup task cannot start. This procedure describes how to manually create a file system backup.</p>
<div class="note" id="sfs_01_0044__note20687849203912"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="sfs_01_0044__p468811492391">If any modification is made to a file system during the backup, inconsistencies may occur. For example, there may be duplicate or deleted data, or data discrepancies. Such a modification includes a write, rename, move or delete. To ensure backup data consistency, you are advised to stop the applications or programs that use the file system during the backup, or schedule the backup at off-peak hours.</p>
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</div>
<div class="section" id="sfs_01_0044__section1629635834112"><a name="sfs_01_0044__section1629635834112"></a><a name="section1629635834112"></a><h4 class="sectiontitle">Using a Backup to Create a File System</h4><p id="sfs_01_0044__p875016544211">In case of a virus attack, accidental deletion, or software or hardware fault, you can use an SFS Turbo file system backup to create a new file system. Data on the new file system is the same as that in the backup.</p>
<ol id="sfs_01_0044__ol12903165616453"><li id="sfs_01_0044__li280961232010"><span>Log in to CBR Console.</span><p><ol type="a" id="sfs_01_0044__en-us_topic_0157095234_ol6567385123151"><li id="sfs_01_0044__en-us_topic_0157095234_li5480597823151">Log in to the management console.</li><li id="sfs_01_0044__en-us_topic_0157095234_li69106284253">Click <span><img id="sfs_01_0044__en-us_topic_0157095234_image1844744225011" src="en-us_image_0000001304536416.png"></span> in the upper left corner and select your desired region and project.</li><li id="sfs_01_0044__en-us_topic_0157095234_li4225424523410">Choose <strong id="sfs_01_0044__b47301456102915">Storage</strong> &gt; <strong id="sfs_01_0044__b87411556122910">Cloud Backup and Recovery</strong> &gt; <strong id="sfs_01_0044__b12746125612913">SFS Turbo Backups</strong>.</li></ol>
</p></li><li id="sfs_01_0044__li1981231214204"><span>Click the <span class="wintitle" id="sfs_01_0044__wintitle176521813304"><b>Backups</b></span> tab and locate the desired backup.</span></li><li id="sfs_01_0044__li1913813526228"><span>If the status of the target backup is <strong id="sfs_01_0044__b14188410163312">Available</strong>, click <strong id="sfs_01_0044__b3215610143313">Create File System</strong> in the <strong id="sfs_01_0044__b5216310193317">Operation</strong> column of the backup.</span></li><li id="sfs_01_0044__li1113905272210"><span>Set the file system parameters. See <a href="#sfs_01_0044__fig126043518315">Figure 1</a>.</span><p><div class="fignone" id="sfs_01_0044__fig126043518315"><a name="sfs_01_0044__fig126043518315"></a><a name="fig126043518315"></a><span class="figcap"><b>Figure 1 </b>Create File System</span><br><span><img id="sfs_01_0044__image76044511337" src="en-us_image_0000001357615949.png" height="360.0975" width="523.6875" title="Click to enlarge" class="imgResize"></span></div>
<div class="note" id="sfs_01_0044__note940514380235"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="sfs_01_0044__ul1040523852313"><li id="sfs_01_0044__li134051138162315">For detailed parameter descriptions, see table "Parameter description" under <a href="en-us_topic_0034428727.html#en-us_topic_0034428727__table724582213143">Table 3</a>.</li></ul>
</p></li><li id="sfs_01_0044__li1981231214204"><span>Click the <span class="wintitle" id="sfs_01_0044__wintitle176521813304"><b>Backups</b></span> tab and locate the desired backup.</span></li><li id="sfs_01_0044__li1913813526228"><span>If the status of the target backup is <strong id="sfs_01_0044__b14188410163312">Available</strong>, click <strong id="sfs_01_0044__b3215610143313">Create File System</strong> in the <strong id="sfs_01_0044__b5216310193317">Operation</strong> column of the backup.</span></li><li id="sfs_01_0044__li1113905272210"><span>Set the file system parameters. See <a href="#sfs_01_0044__fig126043518315">Figure 1</a>.</span><p><div class="fignone" id="sfs_01_0044__fig126043518315"><a name="sfs_01_0044__fig126043518315"></a><a name="fig126043518315"></a><span class="figcap"><b>Figure 1 </b>Create File System</span><br><span><img id="sfs_01_0044__image76044511337" src="en-us_image_0000001357615949.png" title="Click to enlarge" class="imgResize"></span></div>
<div class="note" id="sfs_01_0044__note940514380235"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="sfs_01_0044__ul1040523852313"><li id="sfs_01_0044__li134051138162315">For detailed parameter descriptions, see table "File system parameters" under <a href="en-us_topic_0034428727.html#en-us_topic_0034428727__table724582213143">Table 3</a>.</li></ul>
</div></div>
</p></li><li id="sfs_01_0044__li1014513525225"><span>Click <strong id="sfs_01_0044__b251913558114">Next</strong>.</span></li><li id="sfs_01_0044__li21461652192220"><span>Go back to the file system list and check whether the file system is successfully created.</span><p><p id="sfs_01_0044__p776603815813">You will see the file system status change as follows: <strong id="sfs_01_0044__b1439221223511">Creating</strong>, <strong id="sfs_01_0044__b10401812193510">Available</strong>, <strong id="sfs_01_0044__b54011812173517">Restoring</strong>, <strong id="sfs_01_0044__b16407111213515">Available</strong>. You may not notice the <strong id="sfs_01_0044__b23441636181112">Restoring</strong> status because Instant Restore is supported and the restoration speed is very fast. After the file system status has changed from <strong id="sfs_01_0044__b107717910455">Creating</strong> to <strong id="sfs_01_0044__b14772496459">Available</strong>, the file system is successfully created. After the status has changed from <strong id="sfs_01_0044__b137181631114516">Restoring</strong> to <strong id="sfs_01_0044__b1772803144513">Available</strong>, backup data has been successfully restored to the created file system.</p>
</p></li><li id="sfs_01_0044__li1014513525225"><span>Click <strong id="sfs_01_0044__b251913558114">Create Now</strong>.</span></li><li id="sfs_01_0044__li21461652192220"><span>Go back to the file system list and check whether the file system is successfully created.</span><p><p id="sfs_01_0044__p776603815813">You will see the file system status change as follows: <strong id="sfs_01_0044__b1439221223511">Creating</strong>, <strong id="sfs_01_0044__b10401812193510">Available</strong>, <strong id="sfs_01_0044__b54011812173517">Restoring</strong>, <strong id="sfs_01_0044__b16407111213515">Available</strong>. You may not notice the <strong id="sfs_01_0044__b23441636181112">Restoring</strong> status because Instant Restore is supported and the restoration speed is very fast. After the file system status has changed from <strong id="sfs_01_0044__b107717910455">Creating</strong> to <strong id="sfs_01_0044__b14772496459">Available</strong>, the file system is successfully created. After the status has changed from <strong id="sfs_01_0044__b137181631114516">Restoring</strong> to <strong id="sfs_01_0044__b1772803144513">Available</strong>, backup data has been successfully restored to the created file system.</p>
</p></li></ol>
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<p id="sfs_01_0050__p177951333397">Only SFS Turbo file systems support recording of resource operations using CTS. SFS Capacity-Oriented and general purpose file systems do not support this function.</p>
</div>
<div class="section" id="sfs_01_0050__section149848566220"><h4 class="sectiontitle">Prerequisites</h4><p id="sfs_01_0050__p18152148163317">You have enabled CTS and the tracker is normal. For details about how to enable CTS, see section "Enabling CTS" in the <em id="sfs_01_0050__i862014427227">Cloud Trace Service User Guide.</em></p>
<p id="sfs_01_0050__p1416063081016"></p>
</div>
<div class="section" id="sfs_01_0050__section2270183331019"><h4 class="sectiontitle">Operations</h4>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="sfs_01_0050__table19033961114053" frame="border" border="1" rules="all"><caption><b>Table 1 </b>SFS Capacity-Oriented operations traced by CTS</caption><thead align="left"><tr id="sfs_01_0050__en-us_topic_0100240354_row35006313114053"><th align="left" class="cellrowborder" valign="top" width="31.630000000000003%" id="mcps1.3.3.2.2.4.1.1"><p id="sfs_01_0050__en-us_topic_0100240354_p16939117114053"><strong id="sfs_01_0050__b842352706145343">Operation</strong></p>
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</table>
</div>
</div>
<div class="section" id="sfs_01_0050__section1294519941119"><h4 class="sectiontitle">Querying Traces</h4><ol id="sfs_01_0050__ol248972071815"><li id="sfs_01_0050__li18708202561813"><span>Log in to the management console.</span></li><li id="sfs_01_0050__li1648992015181"><span>Click <span><img id="sfs_01_0050__image207513155377" height="16.9575" src="en-us_image_0113383875.jpg" width="13.965" title="Click to enlarge" class="imgResize"></span> in the upper left corner and select a region and project.</span></li><li id="sfs_01_0050__li198294084510"><span>Choose <strong id="sfs_01_0050__b1299313108179">Management &amp; Deployment</strong> &gt; <strong id="sfs_01_0050__b16983164034517">Cloud Trace Service</strong>.</span><p><p id="sfs_01_0050__p1032815426455">The <strong id="sfs_01_0050__b2754193494611">Cloud Trace Service</strong> page is displayed.</p>
<div class="section" id="sfs_01_0050__section1294519941119"><h4 class="sectiontitle">Querying Traces</h4><ol id="sfs_01_0050__ol248972071815"><li id="sfs_01_0050__li18708202561813"><span>Log in to the management console.</span></li><li id="sfs_01_0050__li1648992015181"><span>Click <span><img id="sfs_01_0050__image207513155377" src="en-us_image_0113383875.jpg" title="Click to enlarge" class="imgResize"></span> in the upper left corner and select a region and project.</span></li><li id="sfs_01_0050__li198294084510"><span>Choose <strong id="sfs_01_0050__b1299313108179">Management &amp; Deployment</strong> &gt; <strong id="sfs_01_0050__b16983164034517">Cloud Trace Service</strong>.</span><p><p id="sfs_01_0050__p1032815426455">The <strong id="sfs_01_0050__b2754193494611">Cloud Trace Service</strong> page is displayed.</p>
</p></li><li id="sfs_01_0050__li5826173619194"><span>In the navigation pane on the left, choose <strong id="sfs_01_0050__b831142374617">Trace List</strong>.</span></li><li id="sfs_01_0050__li14851145013018"><span>On the trace list page, set <strong id="sfs_01_0050__b842352706141135">Trace Source</strong>, <strong id="sfs_01_0050__b84235270614121">Resource Type</strong>, and <strong id="sfs_01_0050__b842352706141226">Search By</strong>, and click <strong id="sfs_01_0050__b842352706141248">Query</strong> to query the specified traces.</span><p><p id="sfs_01_0050__p198511450133013">For details about other operations, see section "Querying Real-Time Traces" in the <em id="sfs_01_0050__i131182611484">Cloud Trace Service User Guide</em>.</p>
</p></li></ol>
</div>
<div class="section" id="sfs_01_0050__section198761857144117"><h4 class="sectiontitle">Disabling or Enabling a Tracker</h4><p id="sfs_01_0050__p60695182185319">This section describes how to disable an existing tracker on the CTS console. After the tracker is disabled, the system will stop recording operations, but you can still view existing operation records.</p>
<ol id="sfs_01_0050__ol10361162210433"><li id="sfs_01_0050__li12345152284318"><span>Log in to the management console.</span></li><li id="sfs_01_0050__li234518223436"><span>Click <span><img id="sfs_01_0050__image2014352113716" height="16.9575" src="en-us_image_0113383875.jpg" width="13.965" title="Click to enlarge" class="imgResize"></span> in the upper left corner and select a region and project.</span></li><li id="sfs_01_0050__li186624844511"><span>Choose <strong id="sfs_01_0050__b9181113152011">Management &amp; Deployment</strong> &gt; <strong id="sfs_01_0050__b6869104811450">Cloud Trace Service</strong>.</span><p><p id="sfs_01_0050__p1145564934511">The <strong id="sfs_01_0050__b20984175474613">Cloud Trace Service</strong> page is displayed.</p>
<ol id="sfs_01_0050__ol10361162210433"><li id="sfs_01_0050__li12345152284318"><span>Log in to the management console.</span></li><li id="sfs_01_0050__li234518223436"><span>Click <span><img id="sfs_01_0050__image2014352113716" src="en-us_image_0113383875.jpg" title="Click to enlarge" class="imgResize"></span> in the upper left corner and select a region and project.</span></li><li id="sfs_01_0050__li186624844511"><span>Choose <strong id="sfs_01_0050__b9181113152011">Management &amp; Deployment</strong> &gt; <strong id="sfs_01_0050__b6869104811450">Cloud Trace Service</strong>.</span><p><p id="sfs_01_0050__p1145564934511">The <strong id="sfs_01_0050__b20984175474613">Cloud Trace Service</strong> page is displayed.</p>
</p></li><li id="sfs_01_0050__li1736142244313"><span>Click <strong id="sfs_01_0050__b842352706154416">Trackers</strong> in the left pane.</span></li><li id="sfs_01_0050__li736152216431"><span>Click <strong id="sfs_01_0050__b5819179814946">Disable</strong> on the right of the tracker information.</span></li><li id="sfs_01_0050__li17361192294319"><span>Click <strong id="sfs_01_0050__b163665313299">Yes</strong>.</span></li><li id="sfs_01_0050__li10361112244317"><span>After the tracker is disabled, the available operation changes from <strong id="sfs_01_0050__b53523495141017">Disable</strong> to <strong id="sfs_01_0050__b30101567141042">Enable</strong>. To enable the tracker again, click <strong id="sfs_01_0050__b1596656141114">Enable</strong> and then click <strong id="sfs_01_0050__b27185880141134">Yes</strong>. The system will start recording operations again.</span></li></ol>
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</li><li id="sfs_01_0052__li760319491378">Energy exploration: Field operations, geologic prospecting, geological data processing and interpretation, and identification of oil and gas reservoirs all require large memory and high bandwidth of the file system.</li><li id="sfs_01_0052__li11963185134815">Image rendering: Image processing, 3D rendering, and frequent processing of small files require high read/write performance, large capacity, and high bandwidth of file systems.</li><li id="sfs_01_0052__li8427161418531">Heterogeneous computing: Compute elements may have different instruction set architectures, requiring the file system provide high bandwidth and low latency.</li></ul>
<p id="sfs_01_0052__p02041837113">SFS is a shared storage service based on file systems. It features high-speed data sharing, dynamic storage tiering, as well as on-demand, smooth, and online resizing. These outstanding features empower SFS to meet the demanding requirements of HPC on storage capacity, throughput, IOPS, and latency.</p>
<p id="sfs_01_0052__p873417150116">A biological company needs to perform plenty of gene sequencing using software. However, due to the trivial steps, slow deployment, complex process, and low efficiency, self-built clusters are reluctant to keep abreast of business development. However, things are getting better since the company resorted to professional HPC service process management software. With massive compute and storage resource of the cloud platform, the initial investment and cost during O&amp;M are greatly reduced, the service rollout time is shortened, and efficiency is boosted.</p>
<div class="section" id="sfs_01_0052__section652070912244"><h4 class="sectiontitle">Configuration Process</h4><ol id="sfs_01_0052__ol26527436151248"><li id="sfs_01_0052__li46357522151248">Organize the files of DNA sequencing to be uploaded.</li><li id="sfs_01_0052__li5697611515139">Log in to the SFS console. Create a file system to store the files of DNA sequencing.</li><li id="sfs_01_0052__li4273011815145">Log in to the servers that function as the head node and compute node, and mount the file system.</li><li id="sfs_01_0052__li65094098151643">On the head node, upload the files to the file system.</li><li id="sfs_01_0052__li52103125194643">On the compute node, edit the files.</li></ol>
<div class="section" id="sfs_01_0052__section652070912244"><h4 class="sectiontitle">Configuration Process</h4><ol id="sfs_01_0052__ol26527436151248"><li id="sfs_01_0052__li46357522151248">Organize the files of DNA sequencing to be uploaded.</li><li id="sfs_01_0052__li5697611515139">Log in to the SFS console. Create a file system to store the files of DNA sequencing.</li><li id="sfs_01_0052__li4273011815145">Log in to the cloud servers that function as the head node and compute node, and mount the file system on them, respectively.</li><li id="sfs_01_0052__li65094098151643">On the head node, upload the files to the file system.</li><li id="sfs_01_0052__li52103125194643">On the compute node, edit the files.</li></ol>
</div>
<div class="section" id="sfs_01_0052__section44286645122428"><h4 class="sectiontitle">Prerequisites</h4><ul id="sfs_01_0052__ul52394545152618"><li id="sfs_01_0052__li5994591152618">A VPC has been created.</li><li id="sfs_01_0052__li4717977152618">ECSs that function as head nodes and compute nodes have been created, and have been assigned to the VPC. </li><li id="sfs_01_0052__li22954435152618">SFS has been enabled.</li></ul>
<div class="section" id="sfs_01_0052__section44286645122428"><h4 class="sectiontitle">Prerequisites</h4><ul id="sfs_01_0052__ul52394545152618"><li id="sfs_01_0052__li5994591152618">A VPC has been created.</li><li id="sfs_01_0052__li4717977152618">Cloud servers that function as the head node and compute node have been created and are in the created VPC. </li><li id="sfs_01_0052__li22954435152618">SFS has been enabled.</li></ul>
</div>
<div class="section" id="sfs_01_0052__section66406365122442"><h4 class="sectiontitle">Example Configuration</h4><ol id="sfs_01_0052__ol19813928152625"><li id="sfs_01_0052__li12812101641211"><span>Log in to the SFS console.</span></li><li id="sfs_01_0052__li44509077152639"><span>In the upper right corner of the page, click <strong id="sfs_01_0052__en-us_topic_0034428727_b8746110102011">Create File System</strong>.</span></li><li id="sfs_01_0052__li8626016155616"><span>On the <strong id="sfs_01_0052__b14247842103217">Create File System</strong> page, set parameters as instructed.</span></li><li id="sfs_01_0052__li219815536916"><span>After the configuration is complete, click <strong id="sfs_01_0052__b194617355185">Create Now</strong>.</span><p><p id="sfs_01_0052__p8772242153217">To mount a file system to Linux ECSs, see <a href="sfs_01_1001.html">Mounting an NFS File System to ECSs (Linux)</a>. To mount a file system to Windows ECSs, see <a href="en-us_topic_0105224109.html">Mounting an NFS File System to ECSs (Windows)</a>.</p>
</p></li><li id="sfs_01_0052__li63700943161124"><span>Log in to the head node, and upload the files to the file system.</span></li><li id="sfs_01_0052__li10504741193935"><span>Start gene sequencing, and the compute node obtains the gene sequencing file from the mounted file system for calculation.</span></li></ol>
<div class="section" id="sfs_01_0052__section66406365122442"><h4 class="sectiontitle">Example Configuration</h4><ol id="sfs_01_0052__ol19813928152625"><li id="sfs_01_0052__li12812101641211"><span>Log in to the SFS console.</span></li><li id="sfs_01_0052__li44509077152639"><span>In the upper right corner of the page, click <strong id="sfs_01_0052__b37621159202112">Create File System</strong>.</span></li><li id="sfs_01_0052__li8626016155616"><span>On the <strong id="sfs_01_0052__b14247842103217">Create File System</strong> page, set parameters as instructed.</span></li><li id="sfs_01_0052__li219815536916"><span>After the configuration is complete, click <strong id="sfs_01_0052__b194617355185">Create Now</strong>.</span><p><p id="sfs_01_0052__p8772242153217">To mount a file system to Linux ECSs, see <a href="en-us_topic_0034428728.html">Mounting an NFS File System to ECSs (Linux)</a>. To mount a file system to Windows ECSs, see <a href="en-us_topic_0105224109.html">Mounting an NFS File System to ECSs (Windows)</a>.</p>
</p></li><li id="sfs_01_0052__li63700943161124"><span>Log in to the head node and upload the files to the file system.</span></li><li id="sfs_01_0052__li10504741193935"><span>Start gene sequencing, and the compute node obtains the gene sequencing file from the mounted file system for calculation.</span></li></ol>
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<div class="section" id="sfs_01_0053__section44286645122428"><h4 class="sectiontitle">Prerequisites</h4><ul id="sfs_01_0053__ul52394545152618"><li id="sfs_01_0053__li5994591152618">A VPC has been created.</li><li id="sfs_01_0053__li4717977152618">ECSs that function as upload workstations and editing workstations have been created, and have been assigned to the VPC. </li><li id="sfs_01_0053__li22954435152618">SFS has been enabled.</li></ul>
</div>
<div class="section" id="sfs_01_0053__section66406365122442"><h4 class="sectiontitle">Example Configuration</h4><ol id="sfs_01_0053__ol19813928152625"><li id="sfs_01_0053__li1982853816150"><span>Log in to the SFS console.</span></li><li id="sfs_01_0053__li44509077152639"><span>In the upper right corner of the page, click <strong id="sfs_01_0053__en-us_topic_0034428727_b8746110102011">Create File System</strong>.</span></li><li id="sfs_01_0053__li8626016155616"><span>On the <strong id="sfs_01_0053__b1463715166551">Create File System</strong> page, set parameters as instructed.</span></li><li id="sfs_01_0053__li51001518117"><span>After the configuration is complete, click <strong id="sfs_01_0053__sfs_01_0052_b194617355185">Create Now</strong>.</span><p><p id="sfs_01_0053__sfs_01_0052_p8772242153217">To mount a file system to Linux ECSs, see <a href="sfs_01_1001.html">Mounting an NFS File System to ECSs (Linux)</a>. To mount a file system to Windows ECSs, see <a href="en-us_topic_0105224109.html">Mounting an NFS File System to ECSs (Windows)</a>.</p>
<div class="section" id="sfs_01_0053__section66406365122442"><h4 class="sectiontitle">Example Configuration</h4><ol id="sfs_01_0053__ol19813928152625"><li id="sfs_01_0053__li1982853816150"><span>Log in to the SFS console.</span></li><li id="sfs_01_0053__li44509077152639"><span>In the upper right corner of the page, click <strong id="sfs_01_0053__en-us_topic_0034428727_b8746110102011">Create File System</strong>.</span></li><li id="sfs_01_0053__li8626016155616"><span>On the <strong id="sfs_01_0053__b1463715166551">Create File System</strong> page, set parameters as instructed.</span></li><li id="sfs_01_0053__li51001518117"><span>After the configuration is complete, click <strong id="sfs_01_0053__sfs_01_0052_b194617355185">Create Now</strong>.</span><p><p id="sfs_01_0053__sfs_01_0052_p8772242153217">To mount a file system to Linux ECSs, see <a href="en-us_topic_0034428728.html">Mounting an NFS File System to ECSs (Linux)</a>. To mount a file system to Windows ECSs, see <a href="en-us_topic_0105224109.html">Mounting an NFS File System to ECSs (Windows)</a>.</p>
</p></li><li id="sfs_01_0053__li63700943161124"><span>Log in to the upload workstations, and upload the material files to the file system.</span></li><li id="sfs_01_0053__li10504741193935"><span>Log in to the editing workstations, and edit the material files.</span></li></ol>
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<h1 class="topictitle1">Enterprise Website/App Background</h1>
<div id="body1540795831867"><div class="section" id="sfs_01_0054__section5877142785112"><h4 class="sectiontitle">Context</h4><p id="sfs_01_0054__p18128195945118">For I/O-intensive website services, SFS Turbo can provide shared website source code directories and storage for multiple web servers, enabling low-latency and high-IOPS concurrent share access. Features of such services are as follows:</p>
<div id="body1540795831867"><div class="section" id="sfs_01_0054__section5877142785112"><h4 class="sectiontitle">Context</h4><p id="sfs_01_0054__p18128195945118">For I/O-intensive website services, SFS Turbo can provide shared website source code directories and storage for multiple web servers, enabling low-latency and high-IOPS concurrent shared access. Features of such services are as follows:</p>
<ul id="sfs_01_0054__ul612885910517"><li id="sfs_01_0054__li14128105925120">A large number of small files: Static website files need to be stored, including HTML files, JSON files, and static images.</li><li id="sfs_01_0054__li312845914515">Read I/O intensive: Scope of data reading is large, and data writing is relatively small.</li><li id="sfs_01_0054__li9128185912515">Multiple web servers access an SFS Turbo background to achieve high availability of website services.</li></ul>
</div>
<div class="section" id="sfs_01_0054__section203761746155216"><h4 class="sectiontitle">Configuration Process</h4><ol id="sfs_01_0054__ol20954115545212"><li id="sfs_01_0054__li8954175555212">Sort out the website files.</li><li id="sfs_01_0054__li7954175515219">Log in to the SFS console. Create an SFS Turbo file system to store the website files.</li><li id="sfs_01_0054__li8954125514525">Log in to the server that functions as the compute node and mount the file system.</li><li id="sfs_01_0054__li139541955135211">On the head node, upload the files to the file system.</li><li id="sfs_01_0054__li79250361531">Start the web server.</li></ol>
<div class="section" id="sfs_01_0054__section203761746155216"><h4 class="sectiontitle">Configuration Process</h4><ol id="sfs_01_0054__ol20954115545212"><li id="sfs_01_0054__li8954175555212">Sort out the website files.</li><li id="sfs_01_0054__li7954175515219">Log in to the SFS console. Create an SFS Turbo file system to store the website files.</li><li id="sfs_01_0054__li8954125514525">Log in to the cloud server that functions as the compute node and mount the file system.</li><li id="sfs_01_0054__li139541955135211">On the head node, upload the files to the file system.</li><li id="sfs_01_0054__li79250361531">Start the web server.</li></ol>
</div>
<div class="section" id="sfs_01_0054__section17422148155316"><h4 class="sectiontitle">Prerequisites</h4><ul id="sfs_01_0054__ul1086619145414"><li id="sfs_01_0054__li78662975420">A VPC has been created.</li><li id="sfs_01_0054__li14866129135413">Servers that function as head nodes and compute nodes have been created, and have been assigned to the VPC. </li><li id="sfs_01_0054__li33931363578">SFS has been enabled.</li></ul>
<div class="section" id="sfs_01_0054__section17422148155316"><h4 class="sectiontitle">Prerequisites</h4><ul id="sfs_01_0054__ul1086619145414"><li id="sfs_01_0054__li78662975420">A VPC has been created.</li><li id="sfs_01_0054__li14866129135413">Cloud servers that function as the head node and compute node have been created and are in the created VPC. </li><li id="sfs_01_0054__li33931363578">SFS has been enabled.</li></ul>
</div>
<div class="section" id="sfs_01_0054__section1036721911570"><h4 class="sectiontitle">Example Configuration</h4><ol id="sfs_01_0054__ol964818264577"><li id="sfs_01_0054__li1982853816150"><span>Log in to the SFS console.</span></li><li id="sfs_01_0054__li44509077152639"><span>In the navigation pane on the left, choose <strong id="sfs_01_0054__en-us_topic_0034428727_b5524109113120">SFS Turbo</strong> &gt; <strong id="sfs_01_0054__en-us_topic_0034428727_b19171024173115">File Systems</strong>. In the upper right corner of the page, click <strong id="sfs_01_0054__en-us_topic_0034428727_b169981958102211">Create File System</strong>.</span></li><li id="sfs_01_0054__li8626016155616"><span>On the <strong id="sfs_01_0054__b1168282310578">Create File System</strong> page, set parameters as instructed.</span></li><li id="sfs_01_0054__li1191414741316"><span>After the configuration is complete, click <strong id="sfs_01_0054__sfs_01_0052_b194617355185">Create Now</strong>.</span><p><p id="sfs_01_0054__sfs_01_0052_p8772242153217">To mount a file system to Linux ECSs, see <a href="sfs_01_1001.html">Mounting an NFS File System to ECSs (Linux)</a>. To mount a file system to Windows ECSs, see <a href="en-us_topic_0105224109.html">Mounting an NFS File System to ECSs (Windows)</a>.</p>
<div class="section" id="sfs_01_0054__section1036721911570"><h4 class="sectiontitle">Example Configuration</h4><ol id="sfs_01_0054__ol964818264577"><li id="sfs_01_0054__li1982853816150"><span>Log in to the SFS console.</span></li><li id="sfs_01_0054__li44509077152639"><span>In the navigation pane on the left, choose <strong id="sfs_01_0054__en-us_topic_0034428727_b5524109113120">SFS Turbo</strong> &gt; <strong id="sfs_01_0054__en-us_topic_0034428727_b19171024173115">File Systems</strong>. In the upper right corner of the page, click <strong id="sfs_01_0054__en-us_topic_0034428727_b169981958102211">Create File System</strong>.</span></li><li id="sfs_01_0054__li8626016155616"><span>On the <strong id="sfs_01_0054__b1168282310578">Create File System</strong> page, set parameters as instructed.</span></li><li id="sfs_01_0054__li1191414741316"><span>After the configuration is complete, click <strong id="sfs_01_0054__sfs_01_0052_b194617355185">Create Now</strong>.</span><p><p id="sfs_01_0054__sfs_01_0052_p8772242153217">To mount a file system to Linux ECSs, see <a href="en-us_topic_0034428728.html">Mounting an NFS File System to ECSs (Linux)</a>. To mount a file system to Windows ECSs, see <a href="en-us_topic_0105224109.html">Mounting an NFS File System to ECSs (Windows)</a>.</p>
</p></li><li id="sfs_01_0054__li109202173477"><span>Log in to the head node and upload the files to the file system.</span></li><li id="sfs_01_0054__li1192111714473"><span>Start the web server.</span></li></ol>
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<h1 class="topictitle1">Log Printing</h1>
<div id="body1540795831868"><div class="section" id="sfs_01_0055__section5877142785112"><h4 class="sectiontitle">Context</h4><div class="p" id="sfs_01_0055__p157671818568">SFS Turbo can provide multiple service nodes for shared log output directories, facilitating log collection and management of distributed applications. Features of such services are as follows:<ul id="sfs_01_0055__ul7208169155617"><li id="sfs_01_0055__li2020812910567">A shared file system is mounted to multiple service hosts and logs are printed concurrently.</li><li id="sfs_01_0055__li52081397566">Large file size and small I/O: The size of a single log file is large, but the I/O of each log writing is small.</li><li id="sfs_01_0055__li1720859135610">Write I/O intensive: Write I/O of small blocks is the major service.</li></ul>
<div id="body1540795831868"><div class="section" id="sfs_01_0055__section5877142785112"><h4 class="sectiontitle">Context</h4><div class="p" id="sfs_01_0055__p157671818568">SFS Turbo can provide shared log output directories for multiple service nodes, facilitating log collection and management of distributed applications. Features of such services are as follows:<ul id="sfs_01_0055__ul7208169155617"><li id="sfs_01_0055__li2020812910567">A shared file system is mounted to multiple service hosts and logs are printed concurrently.</li><li id="sfs_01_0055__li52081397566">Large file size and small I/O: The size of a single log file is large, but the I/O of each log writing is small.</li><li id="sfs_01_0055__li1720859135610">Write I/O intensive: Write I/O of small blocks is the major service.</li></ul>
</div>
</div>
<div class="section" id="sfs_01_0055__section203761746155216"><h4 class="sectiontitle">Configuration Process</h4><ol id="sfs_01_0055__ol20954115545212"><li id="sfs_01_0055__li129083114563">Log in to the SFS console. Create an SFS Turbo file system to store the log files.</li><li id="sfs_01_0055__li149073111563">Log in to the server that functions as the compute node and mount the file system.</li><li id="sfs_01_0055__li790103125612">Configure the log directory to the shared file system. It is recommended that each host use different log files.</li><li id="sfs_01_0055__li89063114567">Start applications.</li></ol>
<div class="section" id="sfs_01_0055__section203761746155216"><h4 class="sectiontitle">Configuration Process</h4><ol id="sfs_01_0055__ol20954115545212"><li id="sfs_01_0055__li129083114563">Log in to the SFS console. Create an SFS Turbo file system to store the log files.</li><li id="sfs_01_0055__li149073111563">Log in to the cloud server that functions as the compute node and mount the file system.</li><li id="sfs_01_0055__li790103125612">Configure the log directory to the shared file system. It is recommended that each host use different log files.</li><li id="sfs_01_0055__li89063114567">Start applications.</li></ol>
</div>
<div class="section" id="sfs_01_0055__section17422148155316"><h4 class="sectiontitle">Prerequisites</h4><ul id="sfs_01_0055__ul1086619145414"><li id="sfs_01_0055__li78662975420">A VPC has been created.</li><li id="sfs_01_0055__li14866129135413">Servers that function as head nodes and compute nodes have been created, and have been assigned to the VPC. </li><li id="sfs_01_0055__li33931363578">SFS has been enabled.</li></ul>
<div class="section" id="sfs_01_0055__section17422148155316"><h4 class="sectiontitle">Prerequisites</h4><ul id="sfs_01_0055__ul1086619145414"><li id="sfs_01_0055__li78662975420">A VPC has been created.</li><li id="sfs_01_0055__li14866129135413">Cloud servers that function as the head node and compute node have been created and are in the created VPC. </li><li id="sfs_01_0055__li33931363578">SFS has been enabled.</li></ul>
</div>
<div class="section" id="sfs_01_0055__section6894339575"><h4 class="sectiontitle">Example Configuration</h4><ol id="sfs_01_0055__ol964818264577"><li id="sfs_01_0055__li6017704152625"><span>Log in to the SFS console.</span></li><li id="sfs_01_0055__li44509077152639"><span>In the upper right corner of the page, click <strong id="sfs_01_0055__b552010107519">Create File System</strong>.</span></li><li id="sfs_01_0055__li8626016155616"><span>On the <strong id="sfs_01_0055__b264133211579">Create File System</strong> page, set parameters as instructed.</span></li><li id="sfs_01_0055__li1078654561414"><span>After the configuration is complete, click <strong id="sfs_01_0055__sfs_01_0052_b194617355185">Create Now</strong>.</span><p><p id="sfs_01_0055__sfs_01_0052_p8772242153217">To mount a file system to Linux ECSs, see <a href="sfs_01_1001.html">Mounting an NFS File System to ECSs (Linux)</a>. To mount a file system to Windows ECSs, see <a href="en-us_topic_0105224109.html">Mounting an NFS File System to ECSs (Windows)</a>.</p>
<div class="section" id="sfs_01_0055__section6894339575"><h4 class="sectiontitle">Example Configuration</h4><ol id="sfs_01_0055__ol964818264577"><li id="sfs_01_0055__li6017704152625"><span>Log in to the SFS console.</span></li><li id="sfs_01_0055__li44509077152639"><span>In the upper right corner of the page, click <strong id="sfs_01_0055__b552010107519">Create File System</strong>.</span></li><li id="sfs_01_0055__li8626016155616"><span>On the <strong id="sfs_01_0055__b264133211579">Create File System</strong> page, set parameters as instructed.</span></li><li id="sfs_01_0055__li1078654561414"><span>After the configuration is complete, click <strong id="sfs_01_0055__sfs_01_0052_b194617355185">Create Now</strong>.</span><p><p id="sfs_01_0055__sfs_01_0052_p8772242153217">To mount a file system to Linux ECSs, see <a href="en-us_topic_0034428728.html">Mounting an NFS File System to ECSs (Linux)</a>. To mount a file system to Windows ECSs, see <a href="en-us_topic_0105224109.html">Mounting an NFS File System to ECSs (Windows)</a>.</p>
</p></li><li id="sfs_01_0055__li629834021314"><span>Configure the log directory to the shared file system. It is recommended that each host use different log files.</span></li><li id="sfs_01_0055__li1829815400139"><span>Start applications.</span></li></ol>
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</li>
<li class="ulchildlink"><strong><a href="sfs_01_0119.html">A File System Is Automatically Disconnected from the Server</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="sfs_01_0058.html">A Server Fails to Access a File System</a></strong><br>
<li class="ulchildlink"><strong><a href="sfs_01_0058.html">A Client Server Failed to Access a File System</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="sfs_01_0059.html">The File System Is Abnormal</a></strong><br>
<li class="ulchildlink"><strong><a href="sfs_01_0059.html">File System Is Abnormal</a></strong><br>
</li>
<li class="ulchildlink"><strong><a href="sfs_01_0060.html">Data Fails to Be Written into a File System Mounted to ECSs Running Different Types of Operating Systems</a></strong><br>
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<h1 class="topictitle1">Mounting a File System Fails</h1>
<div id="body1474254982340"><div class="section" id="sfs_01_0057__section10868397112233"><h4 class="sectiontitle">Symptom</h4><p id="sfs_01_0057__p26504972112244">When a file system is mounted to servers using the <strong id="sfs_01_0057__b20861637151115">mount</strong> command, message <span class="wintitle" id="sfs_01_0057__wintitle286137171117"><b>access denied</b></span> is displayed.</p>
<div id="body1474254982340"><div class="section" id="sfs_01_0057__section10868397112233"><h4 class="sectiontitle">Symptom</h4><p id="sfs_01_0057__p71091742142110">When a file system was mounted to a cloud server using the <strong id="sfs_01_0057__b1371011091016">mount</strong> command, message "access denied" was displayed on the server.</p>
</div>
<div class="section" id="sfs_01_0057__section484814811237"><h4 class="sectiontitle">Possible Causes</h4><ul id="sfs_01_0057__ul2026311811154"><li id="sfs_01_0057__li5870543311154">Cause 1: The file system has been deleted.</li><li id="sfs_01_0057__li2620400911154">Cause 2: The server and the mounted file system are not in the same VPC.</li><li id="sfs_01_0057__li5586888311154">Cause 3: The mount point in the <strong id="sfs_01_0057__b842352706185626">mount</strong> command is incorrect.</li><li id="sfs_01_0057__li1947131517910">Cause 4: The IP address used for accessing SFS is a virtual IP address.</li><li id="sfs_01_0057__li1367192817421">Cause 5: The DNS used for accessing the file system is incorrect.</li></ul>
<div class="section" id="sfs_01_0057__section484814811237"><h4 class="sectiontitle">Possible Causes</h4><ul id="sfs_01_0057__ul2026311811154"><li id="sfs_01_0057__li5870543311154">Cause 1: The file system has been deleted.</li><li id="sfs_01_0057__li2620400911154">Cause 2: The server and the file system are not in the same VPC.</li><li id="sfs_01_0057__li11721457114011">Cause 3: The mount point in the <strong id="sfs_01_0057__b10893154617919">mount</strong> command is incorrect.</li><li id="sfs_01_0057__li1947131517910">Cause 4: The IP address used for accessing SFS is a virtual IP address.</li><li id="sfs_01_0057__li1261132214195">Cause 5: The DNS used for accessing the file system is incorrect.</li></ul>
</div>
<div class="section" id="sfs_01_0057__section3353356112331"><h4 class="sectiontitle">Fault Diagnosis</h4><p id="sfs_01_0057__p31354664112659">Take troubleshooting measures based on possible causes.</p>
</div>
<div class="section" id="sfs_01_0057__section5391128112350"><h4 class="sectiontitle">Solution</h4><ul id="sfs_01_0057__ul8096460112759"><li id="sfs_01_0057__li5964401811323">Cause 1: The file system has been deleted.<div class="p" id="sfs_01_0057__p13950651113658"><a name="sfs_01_0057__li5964401811323"></a><a name="li5964401811323"></a>Log in to the management console and check whether the file system has been deleted.<ul id="sfs_01_0057__ul52612488113215"><li id="sfs_01_0057__li3750351113215">If yes, create a file system or select an existing file system to mount. Ensure that the server and the file system reside in the same VPC.</li><li id="sfs_01_0057__li33753160113215">If no, go to Cause 2.</li></ul>
<div class="section" id="sfs_01_0057__section5391128112350"><h4 class="sectiontitle">Solution</h4><ul id="sfs_01_0057__ul8096460112759"><li id="sfs_01_0057__li5964401811323">Cause 1: The file system has been deleted.<div class="p" id="sfs_01_0057__p13950651113658"><a name="sfs_01_0057__li5964401811323"></a><a name="li5964401811323"></a>Log in to the management console and check whether the file system has been deleted.<ul id="sfs_01_0057__ul52612488113215"><li id="sfs_01_0057__li3750351113215">If yes, create a file system or select an existing file system to mount. Ensure that the server and the file system are in the same VPC.</li><li id="sfs_01_0057__li33753160113215">If no, go to Cause 2.</li></ul>
</div>
</li><li id="sfs_01_0057__li8003624112759">Cause 2: The server and the mounted file system are not in the same VPC.<div class="p" id="sfs_01_0057__p36473394112812"><a name="sfs_01_0057__li8003624112759"></a><a name="li8003624112759"></a>Log in to the management console and check whether the server and the file system belong to the same VPC.<ul id="sfs_01_0057__ul63280071112759"><li id="sfs_01_0057__li4923757112759">If yes, go to Cause 3.</li><li id="sfs_01_0057__li44313821112759">If no, select a file system that resides in the same VPC as the server.</li></ul>
</li><li id="sfs_01_0057__li8003624112759">Cause 2: The server and the file system are not in the same VPC.<div class="p" id="sfs_01_0057__p36473394112812"><a name="sfs_01_0057__li8003624112759"></a><a name="li8003624112759"></a>Log in to the console and check whether the server and the file system are in the same VPC.<ul id="sfs_01_0057__ul63280071112759"><li id="sfs_01_0057__li4923757112759">If yes, go to Cause 3.</li><li id="sfs_01_0057__li44313821112759">If no, select a file system that is in the same VPC as the server.</li></ul>
</div>
</li><li id="sfs_01_0057__li1103323712034">Cause 3: The mount point in the <strong id="sfs_01_0057__b145181813112611">mount</strong> command is incorrect.<ol id="sfs_01_0057__ol4120860714953"><li id="sfs_01_0057__li1895172814953">Log in to the management console and check whether the mount point is the same as the one in the <strong id="sfs_01_0057__b8423527061940">mount</strong> command.</li><li id="sfs_01_0057__li3853534914103">If the mount point in the <strong id="sfs_01_0057__b84235270619457">mount</strong> command is incorrectly entered, correct it and run the command again.</li></ol>
</li><li id="sfs_01_0057__li1103323712034">Cause 3: The mount point in the <strong id="sfs_01_0057__b4557184219209">mount</strong> command is incorrect.<ol id="sfs_01_0057__ol4120860714953"><li id="sfs_01_0057__li1895172814953">Log in to the management console and check whether the mount point is the same as the one in the <strong id="sfs_01_0057__b8423527061940">mount</strong> command.</li><li id="sfs_01_0057__li3853534914103">If the mount point in the <strong id="sfs_01_0057__b84235270619457">mount</strong> command is incorrectly entered, correct it and run the command again.</li></ol>
</li><li id="sfs_01_0057__li860018510307">Cause 4: The IP address used for accessing SFS is a virtual IP address.<p id="sfs_01_0057__p1045143023916"><a name="sfs_01_0057__li860018510307"></a><a name="li860018510307"></a>Log in to the server and run the <strong id="sfs_01_0057__b136661521164518">ping</strong> command and use the server IP address to access SFS. Check whether the service is reachable. See <a href="#sfs_01_0057__fig1289720753914">Figure 1</a>.</p>
<ul id="sfs_01_0057__ul176231633133916"><li id="sfs_01_0057__li9623103319397">If yes, the network problem has been resolved. Check other possible causes.</li><li id="sfs_01_0057__li87481916114016">If no, the server virtual IP address is unable to access SFS due to the network problem. Use the private IP address and run the <strong id="sfs_01_0057__b842352706111329">ping</strong> command to access SFS and check whether the service is reachable.<div class="fignone" id="sfs_01_0057__fig1289720753914"><a name="sfs_01_0057__fig1289720753914"></a><a name="fig1289720753914"></a><span class="figcap"><b>Figure 1 </b>Running the ping command to access SFS</span><br><span><img id="sfs_01_0057__image178979753913" src="en-us_image_0113980196.png" height="144.63750000000002" width="462.84000000000003" title="Click to enlarge" class="imgResize"></span></div>
<ul id="sfs_01_0057__ul176231633133916"><li id="sfs_01_0057__li9623103319397">If yes, the network problem has been resolved. Check other possible causes.</li><li id="sfs_01_0057__li87481916114016">If no, the network is disconnected. Use the server's private IP address and the <strong id="sfs_01_0057__b119304126544">ping</strong> command to access SFS and check whether the service is reachable.<div class="fignone" id="sfs_01_0057__fig1289720753914"><a name="sfs_01_0057__fig1289720753914"></a><a name="fig1289720753914"></a><span class="figcap"><b>Figure 1 </b>Running the ping command to access SFS</span><br><span><img id="sfs_01_0057__image178979753913" src="en-us_image_0113980196.png" title="Click to enlarge" class="imgResize"></span></div>
</li></ul>
</li><li id="sfs_01_0057__li1787863416127">Cause 5: The DNS used for accessing the file system is incorrect.<p id="sfs_01_0057__p8167122911484"><a name="sfs_01_0057__li1787863416127"></a><a name="li1787863416127"></a>Run the following command to check whether the DNS is correct:</p>
<p id="sfs_01_0057__p8421726144816"><strong id="sfs_01_0057__b0555941119">nslookup </strong><i><span class="varname" id="sfs_01_0057__varname13596931120">File system domain name</span></i></p>

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<h1 class="topictitle1">A Server Fails to Access a File System</h1>
<div id="body1474272572748"><div class="section" id="sfs_01_0058__section41158684111639"><h4 class="sectiontitle">Symptom</h4><p id="sfs_01_0058__p54895391161045">A server fails to access a file system. The system displays a message indicating that the access request is denied. All services on the server are abnormal.</p>
<h1 class="topictitle1">A Client Server Failed to Access a File System</h1>
<div id="body1474272572748"><div class="section" id="sfs_01_0058__section41158684111639"><h4 class="sectiontitle">Symptom</h4><p id="sfs_01_0058__p54895391161045">Access from a client server to a file system was denied. All services on the server were abnormal.</p>
</div>
<div class="section" id="sfs_01_0058__section31326994111720"><h4 class="sectiontitle">Possible Causes</h4><ul id="sfs_01_0058__ul54627517161147"><li id="sfs_01_0058__li42118222161147">Cause 1: The file system is abnormal.</li><li id="sfs_01_0058__li6918172161147">Cause 2: After a forcible unmount operation on the server, mount fails.</li></ul>
<div class="section" id="sfs_01_0058__section31326994111720"><h4 class="sectiontitle">Possible Causes</h4><ul id="sfs_01_0058__ul54627517161147"><li id="sfs_01_0058__li42118222161147">Cause 1: The file system is abnormal.</li><li id="sfs_01_0058__li6918172161147">Cause 2: The file system fails to be mounted to the server after being forcibly unmounted.</li></ul>
</div>
<div class="section" id="sfs_01_0058__section34776262111735"><h4 class="sectiontitle">Fault Diagnosis</h4><p id="sfs_01_0058__p5670333819385">Take troubleshooting measures based on possible causes.</p>
</div>
<div class="section" id="sfs_01_0058__section28103453161025"><h4 class="sectiontitle">Solution</h4><ul id="sfs_01_0058__ul45454409161833"><li id="sfs_01_0058__li36547542162310">Cause 1: The file system is abnormal.<p id="sfs_01_0058__p59428836145617"><a name="sfs_01_0058__li36547542162310"></a><a name="li36547542162310"></a>Log in to the management console. On the <span class="wintitle" id="sfs_01_0058__wintitle177010954219741"><b>Scalable File System</b></span> page, check whether the file system is in the <strong id="sfs_01_0058__b27811146215017">Available</strong> state.</p>
<ul id="sfs_01_0058__ul16185885142750"><li id="sfs_01_0058__li32484927142748">If yes, go to Cause 2.</li><li id="sfs_01_0058__li29835422142748">If no, see <a href="sfs_01_0059.html">The File System Is Abnormal</a> to restore the file system to the available state, and then access the file system again.</li></ul>
</li><li id="sfs_01_0058__li4242849216302">Cause 2: After a forcible unmount operation on the server, mount fails.<ol id="sfs_01_0058__ol3504942716314"><li id="sfs_01_0058__li3033616163115">This problem is caused by an inherent defect of servers. Restart the server to resolve this problem.</li><li id="sfs_01_0058__li19336367163341">Check whether the file system can be properly mounted and accessed.<ul id="sfs_01_0058__ul21640421142951"><li id="sfs_01_0058__li35557268142951">If yes, no further action is required.</li><li id="sfs_01_0058__li20828299142951">If no, contact technical support.</li></ul>
<ul id="sfs_01_0058__ul16185885142750"><li id="sfs_01_0058__li32484927142748">If yes, go to Cause 2.</li><li id="sfs_01_0058__li29835422142748">If no, see <a href="sfs_01_0059.html">File System Is Abnormal</a> to restore the file system to the available state, and then access the file system again.</li></ul>
</li><li id="sfs_01_0058__li4242849216302">Cause 2: The file system fails to be mounted to the server after being forcibly unmounted.<ol id="sfs_01_0058__ol3504942716314"><li id="sfs_01_0058__li3033616163115">This problem is caused by a defect of servers. Restart the server to resolve this problem.</li><li id="sfs_01_0058__li19336367163341">Check whether the file system can be properly mounted and accessed from the server.<ul id="sfs_01_0058__ul21640421142951"><li id="sfs_01_0058__li35557268142951">If yes, no further action is required.</li><li id="sfs_01_0058__li20828299142951">If no, contact technical support.</li></ul>
</li></ol>
</li></ul>
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<h1 class="topictitle1">The File System Is Abnormal</h1>
<div id="body1523500981602"><p id="sfs_01_0059__p64742785414">Currently, the file system exceptions include deletion error, expansion error, reduction error, and reduction failure. When the file system is in these statuses, refer to the following handling suggestions.</p>
<h1 class="topictitle1">File System Is Abnormal</h1>
<div id="body1523500981602"><p id="sfs_01_0059__p64742785414">Currently, the file system exceptions include reduction error, reduction failure, deletion error and expansion error. When the file system is in these statuses, refer to the following handling suggestions.</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="sfs_01_0059__table3528559142611" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Measures for handling file system abnormalities</caption><thead align="left"><tr id="sfs_01_0059__row6529059102613"><th align="left" class="cellrowborder" valign="top" width="22%" id="mcps1.3.2.2.3.1.1"><p id="sfs_01_0059__p15529195917262">Exception</p>
</th>

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<div class="section" id="sfs_01_0060__section34776262111735"><h4 class="sectiontitle">Fault Diagnosis</h4><p id="sfs_01_0060__p5670333819385">To address this problem, modify the registry and change both UID and GID values to <strong id="sfs_01_0060__b663125716139">0</strong> for NFS accesses from Windows.</p>
</div>
<div class="section" id="sfs_01_0060__section28103453161025"><h4 class="sectiontitle">Solution</h4><ol id="sfs_01_0060__ol124331649467"><li id="sfs_01_0060__li20433184204620"><span>Choose <strong id="sfs_01_0060__b19338164415430">Start</strong> &gt; <strong id="sfs_01_0060__b8339144414435">Run</strong> and enter <strong id="sfs_01_0060__b7340134416431">regedit</strong> to open the registry.</span></li><li id="sfs_01_0060__li1043314194613"><span>Enter the <strong id="sfs_01_0060__b1296624914314">HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ClientForNFS\CurrentVersion\Default</strong> directory. <a href="#sfs_01_0060__fig103481655182917">Figure 1</a> shows an example of the directory.</span><p><div class="fignone" id="sfs_01_0060__fig103481655182917"><a name="sfs_01_0060__fig103481655182917"></a><a name="fig103481655182917"></a><span class="figcap"><b>Figure 1 </b>Entering the directory</span><br><span><img id="sfs_01_0060__image373185911322" src="en-us_image_0123076280.png" height="449.8725" width="523.6875" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0060__li174331745467"><span>Right-click the blank area and choose <strong id="sfs_01_0060__b8756134273118">New</strong> &gt; <strong id="sfs_01_0060__b875734293110">DWORD Value</strong> from the shortcut menu. Set <strong id="sfs_01_0060__b775894213311">AnonymousUid</strong> and <strong id="sfs_01_0060__b97587425313">AnonymousGid</strong> to <strong id="sfs_01_0060__b9759154210312">0</strong>. <a href="#sfs_01_0060__fig56963212379">Figure 2</a> shows a successful operation.</span><p><div class="fignone" id="sfs_01_0060__fig56963212379"><a name="sfs_01_0060__fig56963212379"></a><a name="fig56963212379"></a><span class="figcap"><b>Figure 2 </b>Adding values</span><br><span><img id="sfs_01_0060__image136943293716" src="en-us_image_0132187573.png" width="NaN" height="NaN"></span></div>
<div class="section" id="sfs_01_0060__section28103453161025"><h4 class="sectiontitle">Solution</h4><ol id="sfs_01_0060__ol124331649467"><li id="sfs_01_0060__li20433184204620"><span>Choose <strong id="sfs_01_0060__b19338164415430">Start</strong> &gt; <strong id="sfs_01_0060__b8339144414435">Run</strong> and enter <strong id="sfs_01_0060__b7340134416431">regedit</strong> to open the registry.</span></li><li id="sfs_01_0060__li1043314194613"><span>Enter the <strong id="sfs_01_0060__b1296624914314">HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ClientForNFS\CurrentVersion\Default</strong> directory. <a href="#sfs_01_0060__fig103481655182917">Figure 1</a> shows an example of the directory.</span><p><div class="fignone" id="sfs_01_0060__fig103481655182917"><a name="sfs_01_0060__fig103481655182917"></a><a name="fig103481655182917"></a><span class="figcap"><b>Figure 1 </b>Entering the directory</span><br><span><img id="sfs_01_0060__image373185911322" src="en-us_image_0123076280.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0060__li174331745467"><span>Right-click the blank area and choose <strong id="sfs_01_0060__b8756134273118">New</strong> &gt; <strong id="sfs_01_0060__b875734293110">DWORD Value</strong> from the shortcut menu. Set <strong id="sfs_01_0060__b775894213311">AnonymousUid</strong> and <strong id="sfs_01_0060__b97587425313">AnonymousGid</strong> to <strong id="sfs_01_0060__b9759154210312">0</strong>. <a href="#sfs_01_0060__fig56963212379">Figure 2</a> shows a successful operation.</span><p><div class="fignone" id="sfs_01_0060__fig56963212379"><a name="sfs_01_0060__fig56963212379"></a><a name="fig56963212379"></a><span class="figcap"><b>Figure 2 </b>Adding values</span><br><span><img id="sfs_01_0060__image136943293716" src="en-us_image_0132187573.png"></span></div>
</p></li><li id="sfs_01_0060__li12401149182511"><span>After modifying the registry, restart the server for the modification to take effect.</span></li></ol>
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<div class="section" id="sfs_01_0061__section34776262111735"><h4 class="sectiontitle">Fault Diagnosis</h4><p id="sfs_01_0061__p5670333819385">Take troubleshooting measures based on possible causes.</p>
</div>
<div class="section" id="sfs_01_0061__section28103453161025"><h4 class="sectiontitle">Solution</h4><ol id="sfs_01_0061__ol5714144172315"><li id="sfs_01_0061__li104696295518"><span>Log in to the ECS. An ECS running Windows Server 2012 R2 is used in this example.</span></li><li id="sfs_01_0061__li179221114167"><span>Click <strong id="sfs_01_0061__b71312424818">Server Manager</strong> in the lower left corner.</span></li><li id="sfs_01_0061__li196604461072"><span>Choose <strong id="sfs_01_0061__b99678492817">Tools</strong> &gt; <strong id="sfs_01_0061__b550610561982">Internet Information Services (IIS) Manager</strong>, expand <strong id="sfs_01_0061__b5741631791">Sites</strong>, and select the target website.</span></li><li id="sfs_01_0061__li163791730142217"><span>Click <strong id="sfs_01_0061__b1570216382919">Basic Settings</strong> to check whether the <strong id="sfs_01_0061__b975615531898">Physical path</strong> is correct.</span></li><li id="sfs_01_0061__li43691030173219"><span>The correct physical path is that of the mount point with the colon (:) deleted.</span><p><div class="p" id="sfs_01_0061__p10756831103215"><a href="#sfs_01_0061__fig047928192514">Figure 1</a> shows the mount point of a file system. You need to enter the physical path <strong id="sfs_01_0061__b8839113411213">\\sfs-nas1.example.com\share-396876e8</strong>, as shown in <a href="#sfs_01_0061__fig1734814414346">Figure 2</a>.<div class="fignone" id="sfs_01_0061__fig047928192514"><a name="sfs_01_0061__fig047928192514"></a><a name="fig047928192514"></a><span class="figcap"><b>Figure 1 </b>Mount point</span><br><span><img id="sfs_01_0061__image36973552303" src="en-us_image_0251367892.png" width="518.7" height="25.407655000000002" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0061__fig1734814414346"><a name="sfs_01_0061__fig1734814414346"></a><a name="fig1734814414346"></a><span class="figcap"><b>Figure 2 </b>Physical path</span><br><span><img id="sfs_01_0061__image9429111115413" src="en-us_image_0156988117.png" height="319.20000000000005" width="523.6875" title="Click to enlarge" class="imgResize"></span></div>
<div class="section" id="sfs_01_0061__section28103453161025"><h4 class="sectiontitle">Solution</h4><ol id="sfs_01_0061__ol5714144172315"><li id="sfs_01_0061__li104696295518"><span>Log in to the cloud server. An ECS running Windows Server 2012 R2 is used in this example.</span></li><li id="sfs_01_0061__li179221114167"><span>Click <strong id="sfs_01_0061__b71312424818">Server Manager</strong> in the lower left corner.</span></li><li id="sfs_01_0061__li196604461072"><span>Choose <strong id="sfs_01_0061__b99678492817">Tools</strong> &gt; <strong id="sfs_01_0061__b550610561982">Internet Information Services (IIS) Manager</strong>, expand <strong id="sfs_01_0061__b5741631791">Sites</strong>, and select the target website.</span></li><li id="sfs_01_0061__li163791730142217"><span>Click <strong id="sfs_01_0061__b1570216382919">Basic Settings</strong> to check whether the <strong id="sfs_01_0061__b975615531898">Physical path</strong> is correct.</span></li><li id="sfs_01_0061__li43691030173219"><span>The correct physical path is that of the mount point with the colon (:) deleted.</span><p><div class="p" id="sfs_01_0061__p10756831103215"><a href="#sfs_01_0061__fig047928192514">Figure 1</a> shows the mount point of a file system. You need to enter the physical path <strong id="sfs_01_0061__b8839113411213">\\sfs-nas1.example.com\share-396876e8</strong>, as shown in <a href="#sfs_01_0061__fig1734814414346">Figure 2</a>.<div class="fignone" id="sfs_01_0061__fig047928192514"><a name="sfs_01_0061__fig047928192514"></a><a name="fig047928192514"></a><span class="figcap"><b>Figure 1 </b>Mount point</span><br><span><img id="sfs_01_0061__image36973552303" src="en-us_image_0251367892.png" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0061__fig1734814414346"><a name="sfs_01_0061__fig1734814414346"></a><a name="fig1734814414346"></a><span class="figcap"><b>Figure 2 </b>Physical path</span><br><span><img id="sfs_01_0061__image9429111115413" src="en-us_image_0156988117.png" title="Click to enlarge" class="imgResize"></span></div>
</div>
</p></li></ol>
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<div class="section" id="sfs_01_0062__section34776262111735"><h4 class="sectiontitle">Fault Diagnosis</h4><p id="sfs_01_0062__p5670333819385">Install the required <strong id="sfs_01_0062__b13612152115409">nfs-utils</strong> software package.</p>
</div>
<div class="section" id="sfs_01_0062__section28103453161025"><h4 class="sectiontitle">Solution</h4><ol id="sfs_01_0062__ol151849420578"><li id="sfs_01_0062__li132511139143"><span>Log in to the ECS and check whether the <strong id="sfs_01_0062__b3718184524019">nfs-utils</strong> package is installed. Run the following command. If no command output is displayed, the package is not installed.</span><p><pre class="screen" id="sfs_01_0062__screen3463175343918"><strong id="sfs_01_0062__b8466135315391">rpm -qa|grep nfs</strong></pre>
<div class="fignone" id="sfs_01_0062__fig189451650174516"><span class="figcap"><b>Figure 1 </b>Checking whether the software package has been installed</span><br><span><img id="sfs_01_0062__image1116414411154" src="en-us_image_0205874230.png" width="492.76500000000004" height="133.990185" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0062__fig189451650174516"><span class="figcap"><b>Figure 1 </b>Checking whether the software package has been installed</span><br><span><img id="sfs_01_0062__image1116414411154" src="en-us_image_0205874230.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0062__li6039788911109"><span>Run the following command to install the nfs-utils software package:</span><p><pre class="screen" id="sfs_01_0062__screen10258787409"><strong id="sfs_01_0062__b42601883401">yum -y install nfs-utils</strong></pre>
<div class="fignone" id="sfs_01_0062__fig2664120154213"><span class="figcap"><b>Figure 2 </b>Executing the installation command</span><br><span><img id="sfs_01_0062__image052852414409" src="en-us_image_0205880095.png" width="490.77000000000004" height="90.358338" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0062__fig1883825311413"><span class="figcap"><b>Figure 3 </b>Successful installation</span><br><span><img id="sfs_01_0062__image5346123684012" src="en-us_image_0205880066.png" width="488.77500000000003" height="116.45918900000001" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0062__fig2664120154213"><span class="figcap"><b>Figure 2 </b>Executing the installation command</span><br><span><img id="sfs_01_0062__image052852414409" src="en-us_image_0205880095.png" title="Click to enlarge" class="imgResize"></span></div>
<div class="fignone" id="sfs_01_0062__fig1883825311413"><span class="figcap"><b>Figure 3 </b>Successful installation</span><br><span><img id="sfs_01_0062__image5346123684012" src="en-us_image_0205880066.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0062__li31851242165714"><span>Run the <strong id="sfs_01_0062__b2490131914228">mount</strong> command again to mount the file system to the ECS.</span><p><pre class="screen" id="sfs_01_0062__screen4158756164818"><strong id="sfs_01_0062__b584815255616">mount -t nfs -o vers=3,timeo=600,noresvport,nolock</strong> <em id="sfs_01_0062__i198483215567">Mount point</em> <em id="sfs_01_0062__i20849112205611">Local path</em></pre>
</p></li><li id="sfs_01_0062__li0158256184811"><span>Run the following command to view the mounted file system:</span><p><p id="sfs_01_0062__p249187081543"><strong id="sfs_01_0062__b318697281545">mount -l</strong></p>
<div class="p" id="sfs_01_0062__p4776349815359">If the command output contains the following information, the file system is mounted successfully.<pre class="screen" id="sfs_01_0062__screen25662203111850">example.com:/share-xxx on /local_path type nfs (rw,vers=3,timeo=600,nolock,addr=)</pre>
<div class="p" id="sfs_01_0062__p4776349815359">If the command output contains the following information, the file system has been mounted:<pre class="screen" id="sfs_01_0062__screen25662203111850">example.com:/share-xxx on /local_path type nfs (rw,vers=3,timeo=600,nolock,addr=)</pre>
</div>
</p></li></ol>
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<a name="sfs_01_0063"></a><a name="sfs_01_0063"></a>
<h1 class="topictitle1">Failed to Access the Shared Folder in Windows</h1>
<div id="body1577756761595"><div class="section" id="sfs_01_0063__section41158684111639"><h4 class="sectiontitle">Symptom</h4><p id="sfs_01_0063__p54895391161045">When you mount a file system to an ECS running Windows, the system displays a message "You cannot access this shared folder because your organization's security policies block unauthenticated guest access. These policies help to protect you PC from unsafe or malicious devices on the network."</p>
<div id="body1577756761595"><div class="section" id="sfs_01_0063__section41158684111639"><h4 class="sectiontitle">Symptom</h4><p id="sfs_01_0063__p54895391161045">When you mount a file system to an ECS running Windows, the system displays a message "You cannot access this shared folder because your organization's security policies block unauthenticated guest access. These policies help protect your PC from unsafe or malicious devices on the network."</p>
</div>
<div class="section" id="sfs_01_0063__section31326994111720"><h4 class="sectiontitle">Possible Causes</h4><p id="sfs_01_0063__p13813183613562">Guest access to CIFS file systems is blocked or disabled.</p>
</div>
@ -9,14 +9,14 @@
<p id="sfs_01_0063__p72361020194512">Solution 2: Modify the registry to allow guest access (suitable for versions later than Windows Server 2016).</p>
</div>
<div class="section" id="sfs_01_0063__section28103453161025"><h4 class="sectiontitle">Solution</h4><p id="sfs_01_0063__p178661734161319"><strong id="sfs_01_0063__b781212664918">Solution 1: Manually enable guest access.</strong></p>
<ol id="sfs_01_0063__ol151849420578"><li id="sfs_01_0063__li132511139143"><span>Open <strong id="sfs_01_0063__b182911119113">Run</strong> command box, enter <strong id="sfs_01_0063__b1829831171116">gpedit.msc</strong>, and press <strong id="sfs_01_0063__b15835112612110">Enter</strong> to start <strong id="sfs_01_0063__b16299171181117">Local Group Policy Editor</strong>.</span><p><div class="fignone" id="sfs_01_0063__fig6411524192918"><span class="figcap"><b>Figure 1 </b>Entering gpedit.msc</span><br><span><img id="sfs_01_0063__image74485417289" src="en-us_image_0216773813.png" width="508.725" height="417.53049100000004" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0063__li10489519559"><span>On the <strong id="sfs_01_0063__b316985091211">Local Group Policy Editor</strong> page, choose <strong id="sfs_01_0063__b1050145713128">Computer Configuration</strong> &gt; <strong id="sfs_01_0063__b1251515101316">Administrative Templates</strong>.</span><p><div class="fignone" id="sfs_01_0063__fig028718275419"><span class="figcap"><b>Figure 2 </b>Local Group Policy Editor</span><br><span><img id="sfs_01_0063__image11819235911" src="en-us_image_0216828477.png" width="513.7125" height="359.66764400000005" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0063__li31481068143"><span>Under <strong id="sfs_01_0063__b14194145201410">Administrative Templates</strong>, choose <strong id="sfs_01_0063__b1925495318144">Network</strong> &gt; <strong id="sfs_01_0063__b107251259151412">Lanman Workstation</strong> and find the option of <strong id="sfs_01_0063__b1448431716155">Enable insecure guest logons</strong>.</span><p><div class="fignone" id="sfs_01_0063__fig11864175522717"><span class="figcap"><b>Figure 3 </b>Locating the option</span><br><span><img id="sfs_01_0063__image46243434272" src="en-us_image_0216836626.png" width="517.7025" height="360.801735" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0063__li1433113582815"><span>Double-click <strong id="sfs_01_0063__b65933441617">Enable insecure guest logons</strong>. Select <strong id="sfs_01_0063__b842352706135856">Enabled</strong> and click <strong id="sfs_01_0063__b84235270613590">OK</strong>.</span><p><div class="fignone" id="sfs_01_0063__fig2121419121217"><span class="figcap"><b>Figure 4 </b>Enabling insecure guest logons</span><br><span><img id="sfs_01_0063__image2783117388" src="en-us_image_0216842861.png" width="511.71750000000003" height="477.39153" title="Click to enlarge" class="imgResize"></span></div>
<ol id="sfs_01_0063__ol151849420578"><li id="sfs_01_0063__li132511139143"><span>Open the <strong id="sfs_01_0063__b182911119113">Run</strong> command box, enter <strong id="sfs_01_0063__b1829831171116">gpedit.msc</strong>, and press <strong id="sfs_01_0063__b15835112612110">Enter</strong> to start <strong id="sfs_01_0063__b16299171181117">Local Group Policy Editor</strong>.</span><p><div class="fignone" id="sfs_01_0063__fig6411524192918"><span class="figcap"><b>Figure 1 </b>Entering gpedit.msc</span><br><span><img id="sfs_01_0063__image74485417289" src="en-us_image_0216773813.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0063__li10489519559"><span>On the <strong id="sfs_01_0063__b316985091211">Local Group Policy Editor</strong> page, choose <strong id="sfs_01_0063__b1050145713128">Computer Configuration</strong> &gt; <strong id="sfs_01_0063__b1251515101316">Administrative Templates</strong>.</span><p><div class="fignone" id="sfs_01_0063__fig028718275419"><span class="figcap"><b>Figure 2 </b>Local Group Policy Editor</span><br><span><img id="sfs_01_0063__image11819235911" src="en-us_image_0216828477.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0063__li31481068143"><span>Under <strong id="sfs_01_0063__b14194145201410">Administrative Templates</strong>, choose <strong id="sfs_01_0063__b1925495318144">Network</strong> &gt; <strong id="sfs_01_0063__b107251259151412">Lanman Workstation</strong> and find the option <strong id="sfs_01_0063__b1448431716155">Enable insecure guest logons</strong>.</span><p><div class="fignone" id="sfs_01_0063__fig11864175522717"><span class="figcap"><b>Figure 3 </b>Locating the option</span><br><span><img id="sfs_01_0063__image46243434272" src="en-us_image_0216836626.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0063__li1433113582815"><span>Double-click <strong id="sfs_01_0063__b65933441617">Enable insecure guest logons</strong>. Select <strong id="sfs_01_0063__b842352706135856">Enabled</strong> and click <strong id="sfs_01_0063__b84235270613590">OK</strong>.</span><p><div class="fignone" id="sfs_01_0063__fig2121419121217"><span class="figcap"><b>Figure 4 </b>Enabling insecure guest logons</span><br><span><img id="sfs_01_0063__image2783117388" src="en-us_image_0216842861.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0063__li917313308147"><span>After the access is enabled, mount the file system again. If the fault persists, contact technical support.</span></li></ol>
<p id="sfs_01_0063__p1813214520133"><strong id="sfs_01_0063__b15909174024918">Solution 2: Modify the registry to allow guest access (suitable for versions later than Windows Server 2016).</strong></p>
<ol id="sfs_01_0063__ol189371562138"><li id="sfs_01_0063__li20433184204620"><span>Choose <strong id="sfs_01_0063__b355059104120">Start</strong> &gt; <strong id="sfs_01_0063__b155110904117">Run</strong> and enter <strong id="sfs_01_0063__b115511892419">regedit</strong> to open the registry.</span></li><li id="sfs_01_0063__li1043314194613"><span>Go to the <strong id="sfs_01_0063__b2019471218504">HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters</strong> directory.</span><p><div class="fignone" id="sfs_01_0063__fig16151714339"><span class="figcap"><b>Figure 5 </b>Entering the registry</span><br><span><img id="sfs_01_0063__image46151074331" src="en-us_image_0000001092716652.png" height="356.1075" width="523.6875" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0063__li09271511153415"><span>Right-click <strong id="sfs_01_0063__b19755152715529">AllowInsecureGuestAuth</strong> and choose <strong id="sfs_01_0063__b127471518125212">Modify</strong> from the shortcut menu. In the pop-up window, change the value to <strong id="sfs_01_0063__b104221349145219">1</strong>.</span><p><div class="fignone" id="sfs_01_0063__fig13530735204112"><span class="figcap"><b>Figure 6 </b>Changing the value</span><br><span><img id="sfs_01_0063__image75309357411" src="en-us_image_0000001092717428.png" height="434.91" width="523.6875" title="Click to enlarge" class="imgResize"></span></div>
<ol id="sfs_01_0063__ol189371562138"><li id="sfs_01_0063__li20433184204620"><span>Choose <strong id="sfs_01_0063__b355059104120">Start</strong> &gt; <strong id="sfs_01_0063__b155110904117">Run</strong> and enter <strong id="sfs_01_0063__b115511892419">regedit</strong> to open the registry.</span></li><li id="sfs_01_0063__li1043314194613"><span>Go to the <strong id="sfs_01_0063__b2019471218504">HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters</strong> directory.</span><p><div class="fignone" id="sfs_01_0063__fig16151714339"><span class="figcap"><b>Figure 5 </b>Entering the registry</span><br><span><img id="sfs_01_0063__image46151074331" src="en-us_image_0000001092716652.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="sfs_01_0063__li09271511153415"><span>Right-click <strong id="sfs_01_0063__b19755152715529">AllowInsecureGuestAuth</strong> and choose <strong id="sfs_01_0063__b127471518125212">Modify</strong> from the shortcut menu. In the pop-up window, change the value to <strong id="sfs_01_0063__b104221349145219">1</strong>.</span><p><div class="fignone" id="sfs_01_0063__fig13530735204112"><span class="figcap"><b>Figure 6 </b>Changing the value</span><br><span><img id="sfs_01_0063__image75309357411" src="en-us_image_0000001092717428.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li></ol>
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<h1 class="topictitle1">What Is SFS?</h1>
<div id="body1469764805162"><p id="sfs_01_0067__p3141077716938">Scalable File Service (SFS) provides scalable, high-performance file storage. With SFS, you can enjoy shared file access spanning multiple ECSs. SFS supports the Network File System (NFS) protocol. You can seamlessly integrate existing applications and tools with the service.</p>
<p id="sfs_01_0067__p1426153816938">SFS provides an easy-to-use graphical user interface (GUI). On the GUI, users can create and configure file systems, saving effort in deploying, resizing, and optimizing file systems.</p>
<p id="sfs_01_0067__p6124498516938">In addition, SFS features high availability. It can be elastically expanded, and it performs better as its capacity grows. The service is suitable for a wide range of scenarios, including media processing, file sharing, content management and web services, big data, and analytic applications.</p>
<p id="sfs_01_0067__p6124498516938">In addition, SFS features high availability. It can be elastically expanded, and it performs better as its capacity grows. It is suitable for a wide range of scenarios, including media processing, file sharing, content management and web services, big data, and analytic applications.</p>
</div>
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<h1 class="topictitle1">What Is SFS Turbo?</h1>
<div id="body1568879889347"><p id="sfs_01_0068__p3141077716938">SFS Turbo provides high-performance file storage that can be expanded on demand. With SFS Turbo, you can enjoy shared file access spanning multiple ECSs. SFS Turbo supports the Network File System (NFS) protocol (only NFSv3). You can seamlessly integrate existing applications and tools with the service.</p>
<p id="sfs_01_0068__p1426153816938">SFS Turbo provides an easy-to-use graphical user interface (GUI). On the GUI, users can create and configure file systems, saving effort in deploying, resizing, and optimizing file systems.</p>
<p id="sfs_01_0068__p6124498516938">In addition, SFS Turbo features high reliability and availability. It can be elastically expanded, and it performs better as its capacity grows. The service is suitable for a wide range of scenarios, including enterprise office, high-performance websites, and software development. For details about SFS Turbo file system types, see <a href="sfs_01_0005.html">File System Types</a>.</p>
<p id="sfs_01_0068__p6124498516938">In addition, SFS Turbo features high reliability and availability. It can be elastically expanded, and it performs better as its capacity grows. The service is suitable for a wide range of scenarios, including enterprise office, high-performance websites, and software development. For details about the file system types, see <a href="sfs_01_0005.html">File System Types</a>.</p>
</div>
<div>
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