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Lu, Huayi 95132e24fc DWS UMN 830.201_new version 
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Reviewed-by: Rechenburg, Matthias <matthias.rechenburg@t-systems.com>
Co-authored-by: Lu, Huayi <luhuayi@huawei.com>
Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
2024-05-27 11:54:34 +00:00

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<a name="EN-US_TOPIC_0000001658895274"></a><a name="EN-US_TOPIC_0000001658895274"></a>
<h1 class="topictitle1">Configuring a Snapshot</h1>
<div id="body8662426"><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p1075215326420">You can configure the parameters for creating and restoring a snapshot.</p>
<div class="note" id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_en-us_topic_0000001307409958_en-us_topic_0000001134400690_note166571431154313"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_en-us_topic_0000001307409958_en-us_topic_0000001134400690_ul15451824182318"><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_li0440419172817">This feature applies only to clusters of 8.2.0 or later. (For clusters of versions earlier than 8.2.0, only some parameters can be configured.)</li><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_li166187592169">The parameters take effect on all the snapshot creation and restoration tasks.</li></ul>
</div></div>
<div class="section" id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_section98641113144"><h4 class="sectiontitle">Procedure</h4><ol id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_ol486619101412"><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_en-us_topic_0000001360169333_en-us_topic_0000001231278872_li6029015714233"><span>Log in to the GaussDB(DWS) management console.</span></li><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_en-us_topic_0000001360169333_en-us_topic_0000001231278872_li33798861115225"><span>In the navigation pane on the left, choose <span class="uicontrol" id="EN-US_TOPIC_0000001658895274__uicontrol9643199057580"><b>Clusters</b></span> &gt; <strong id="EN-US_TOPIC_0000001658895274__b17104609117580">Dedicated Clusters</strong>.</span></li><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_en-us_topic_0000001360169333_en-us_topic_0000001231278872_li1745313619417"><span>In the cluster list, click the name of the target cluster. The <span class="parmname" id="EN-US_TOPIC_0000001658895274__parmname1040940141910"><b>Cluster Information</b></span> page is displayed.</span></li><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_en-us_topic_0000001360169333_en-us_topic_0000001231278872_li1372215411474"><span>Click the <strong id="EN-US_TOPIC_0000001658895274__b16129141462016">Snapshots</strong> tab page and click <strong id="EN-US_TOPIC_0000001658895274__b3129101417201">Configure Parameters</strong>. All the configurable parameters of the current cluster will be displayed.</span></li><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_li5452171519223"><span>Configure parameters as required. For details, see <a href="#EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_table16486142263310">Table 1</a>.</span><p><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p11440172032212"><span><img id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_image85429142213" src="figure/en-us_image_0000001759518501.png" title="Click to enlarge" class="imgResize"></span></p>
</p></li><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_li1299471191616"><span>Click <strong id="EN-US_TOPIC_0000001658895274__b16165317238">Save</strong>.</span></li></ol>
</div>
<div class="section" id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_section18787630133211"><h4 class="sectiontitle">Snapshot parameters</h4>
<div class="tablenoborder"><a name="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_table16486142263310"></a><a name="en-us_topic_0000001478356381_table16486142263310"></a><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_table16486142263310" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Snapshot information</caption><thead align="left"><tr id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_row18489102213338"><th align="left" class="cellrowborder" valign="top" width="20.72792720727927%" id="mcps1.3.4.2.2.5.1.1"><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p19490122211333">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="19.228077192280768%" id="mcps1.3.4.2.2.5.1.2"><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p597113193414">Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="34.14658534146585%" id="mcps1.3.4.2.2.5.1.3"><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p1549011227330">Description</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="25.897410258974098%" id="mcps1.3.4.2.2.5.1.4"><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p2490142273312">Default Value</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_row104901221336"><td class="cellrowborder" valign="top" width="20.72792720727927%" headers="mcps1.3.4.2.2.5.1.1 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p1649014222334">parallel-process</p>
</td>
<td class="cellrowborder" valign="top" width="19.228077192280768%" headers="mcps1.3.4.2.2.5.1.2 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p1897217191444">Backup parameter</p>
</td>
<td class="cellrowborder" valign="top" width="34.14658534146585%" headers="mcps1.3.4.2.2.5.1.3 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p173641148161112">Number of concurrent processes on each node during Roach backup.</p>
<div class="note" id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_note217920488357"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p20179348113515">This parameter can be configured for clusters earlier than 8.2.0.</p>
</div></div>
</td>
<td class="cellrowborder" valign="top" width="25.897410258974098%" headers="mcps1.3.4.2.2.5.1.4 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p154901227330">The value is the number of DNs on the current node.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_row20490182218339"><td class="cellrowborder" valign="top" width="20.72792720727927%" headers="mcps1.3.4.2.2.5.1.1 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p1049018229336">compression-type</p>
</td>
<td class="cellrowborder" valign="top" width="19.228077192280768%" headers="mcps1.3.4.2.2.5.1.2 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p2093675511018">Backup parameter</p>
</td>
<td class="cellrowborder" valign="top" width="34.14658534146585%" headers="mcps1.3.4.2.2.5.1.3 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p16108115616813">Compression algorithm.</p>
<ul id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_ul843133503719"><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_li1643173519371">zlib</li><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_li184323543716">LZ4</li></ul>
<div class="note" id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_note282032823620"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p108201028193614">This parameter can be configured for clusters earlier than 8.2.0.</p>
</div></div>
</td>
<td class="cellrowborder" valign="top" width="25.897410258974098%" headers="mcps1.3.4.2.2.5.1.4 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p5491322143311">LZ4</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_row16491102218339"><td class="cellrowborder" valign="top" width="20.72792720727927%" headers="mcps1.3.4.2.2.5.1.1 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p7491822173316">compression-level</p>
</td>
<td class="cellrowborder" valign="top" width="19.228077192280768%" headers="mcps1.3.4.2.2.5.1.2 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p5972101916417">Backup parameter</p>
</td>
<td class="cellrowborder" valign="top" width="34.14658534146585%" headers="mcps1.3.4.2.2.5.1.3 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p143873114367">Compression level. The value range is 0 to 9.</p>
<ul id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_ul876265212374"><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_li16763195216376"><strong id="EN-US_TOPIC_0000001658895274__b12457075324">0</strong>: fast backup and no compression</li><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_li167631152203713"><strong id="EN-US_TOPIC_0000001658895274__b13390141118323">9</strong>: slow backup and maximum compression</li></ul>
<div class="note" id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_note1443893163611"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p17439153119365">This parameter can be configured for clusters earlier than 8.2.0.</p>
</div></div>
</td>
<td class="cellrowborder" valign="top" width="25.897410258974098%" headers="mcps1.3.4.2.2.5.1.4 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p14491162213339">6</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_row19491102211339"><td class="cellrowborder" valign="top" width="20.72792720727927%" headers="mcps1.3.4.2.2.5.1.1 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p66151844171016">buffer-size</p>
</td>
<td class="cellrowborder" valign="top" width="19.228077192280768%" headers="mcps1.3.4.2.2.5.1.2 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p1597210192048">Backup parameter</p>
</td>
<td class="cellrowborder" valign="top" width="34.14658534146585%" headers="mcps1.3.4.2.2.5.1.3 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p19490152223316">Buffer size of the Roach upload media. The value range is 256 to 16,384, in MB.</p>
</td>
<td class="cellrowborder" valign="top" width="25.897410258974098%" headers="mcps1.3.4.2.2.5.1.4 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p12362397118">256</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_row6492112203320"><td class="cellrowborder" valign="top" width="20.72792720727927%" headers="mcps1.3.4.2.2.5.1.1 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p174925221331">buffer-block-size</p>
</td>
<td class="cellrowborder" valign="top" width="19.228077192280768%" headers="mcps1.3.4.2.2.5.1.2 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p199726191845">Backup parameter</p>
</td>
<td class="cellrowborder" valign="top" width="34.14658534146585%" headers="mcps1.3.4.2.2.5.1.3 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p1749212243313">Data block size of the data file to be read by Roach. The value range is 5,242,880 to 268,435,456, in bytes.</p>
</td>
<td class="cellrowborder" valign="top" width="25.897410258974098%" headers="mcps1.3.4.2.2.5.1.4 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p249272223319">67108864</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_row1049222243318"><td class="cellrowborder" valign="top" width="20.72792720727927%" headers="mcps1.3.4.2.2.5.1.1 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p13492142213330">cpu-cores</p>
</td>
<td class="cellrowborder" valign="top" width="19.228077192280768%" headers="mcps1.3.4.2.2.5.1.2 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p2097281916412">Backup parameter</p>
</td>
<td class="cellrowborder" valign="top" width="34.14658534146585%" headers="mcps1.3.4.2.2.5.1.3 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p64929221332">Number of CPU cores that can be used when Roach starts multiple threads concurrently</p>
</td>
<td class="cellrowborder" valign="top" width="25.897410258974098%" headers="mcps1.3.4.2.2.5.1.4 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p2493522133311">1/2 of the total number of logical CPU cores on the node</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_row54931222143320"><td class="cellrowborder" valign="top" width="20.72792720727927%" headers="mcps1.3.4.2.2.5.1.1 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p24931227338">master-timeout</p>
</td>
<td class="cellrowborder" valign="top" width="19.228077192280768%" headers="mcps1.3.4.2.2.5.1.2 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p897211197419">Backup parameter</p>
</td>
<td class="cellrowborder" valign="top" width="34.14658534146585%" headers="mcps1.3.4.2.2.5.1.3 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p14493152243314">Timeout period for the communication between the Roach master and agent nodes. The value range is 600 to 3600, in seconds.</p>
</td>
<td class="cellrowborder" valign="top" width="25.897410258974098%" headers="mcps1.3.4.2.2.5.1.4 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p13493172253311">3600</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_row44931222153313"><td class="cellrowborder" valign="top" width="20.72792720727927%" headers="mcps1.3.4.2.2.5.1.1 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p1494822133318">max-backup-io-speed</p>
</td>
<td class="cellrowborder" valign="top" width="19.228077192280768%" headers="mcps1.3.4.2.2.5.1.2 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p129548128195">Backup parameter</p>
</td>
<td class="cellrowborder" valign="top" width="34.14658534146585%" headers="mcps1.3.4.2.2.5.1.3 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p1049413222339">I/O flow control during Roach backup. The value range is 0 to 2048, in MB/s. The value must be greater than the value of <strong id="EN-US_TOPIC_0000001658895274__b21653114181">buffer-block-size</strong>. The value <strong id="EN-US_TOPIC_0000001658895274__b17104121481817">0</strong> indicates no limit.</p>
</td>
<td class="cellrowborder" valign="top" width="25.897410258974098%" headers="mcps1.3.4.2.2.5.1.4 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p249422243319">0</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_row15494422193314"><td class="cellrowborder" valign="top" width="20.72792720727927%" headers="mcps1.3.4.2.2.5.1.1 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p124941122183311">backup-mode</p>
</td>
<td class="cellrowborder" valign="top" width="19.228077192280768%" headers="mcps1.3.4.2.2.5.1.2 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p73049943917">Backup parameter</p>
</td>
<td class="cellrowborder" valign="top" width="34.14658534146585%" headers="mcps1.3.4.2.2.5.1.3 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p71241244114014">Full backup mode.</p>
<ul id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_ul174951996412"><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_li949589164115"><strong id="EN-US_TOPIC_0000001658895274__b26031279215">0</strong>: phase-1 backup</li><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_li1349612911416"><strong id="EN-US_TOPIC_0000001658895274__b59253882113">1</strong>: phase-2 backup</li></ul>
</td>
<td class="cellrowborder" valign="top" width="25.897410258974098%" headers="mcps1.3.4.2.2.5.1.4 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p20494202211337">0</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_row649562273312"><td class="cellrowborder" valign="top" width="20.72792720727927%" headers="mcps1.3.4.2.2.5.1.1 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p194951222123313">cbm-parse-mode</p>
</td>
<td class="cellrowborder" valign="top" width="19.228077192280768%" headers="mcps1.3.4.2.2.5.1.2 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p1497214191344">Backup parameter</p>
</td>
<td class="cellrowborder" valign="top" width="34.14658534146585%" headers="mcps1.3.4.2.2.5.1.3 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p178951233184114">Incremental backup mode.</p>
<ul id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_ul1927365064114"><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_li427385044117"><strong id="EN-US_TOPIC_0000001658895274__b1382912288216">0</strong>: one-time CBM scan (high memory usage and high performance)</li><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_li1527445074110"><strong id="EN-US_TOPIC_0000001658895274__b33749182313">1</strong>: multiple CBM scans (stable memory usage and low performance)</li></ul>
</td>
<td class="cellrowborder" valign="top" width="25.897410258974098%" headers="mcps1.3.4.2.2.5.1.4 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p12495152210335">0</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_row24961422143312"><td class="cellrowborder" valign="top" width="20.72792720727927%" headers="mcps1.3.4.2.2.5.1.1 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p1496102219335">parallel-process</p>
</td>
<td class="cellrowborder" valign="top" width="19.228077192280768%" headers="mcps1.3.4.2.2.5.1.2 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p119721919242">Restoration parameter</p>
</td>
<td class="cellrowborder" valign="top" width="34.14658534146585%" headers="mcps1.3.4.2.2.5.1.3 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p64961822193317">Number of concurrent processes on each node during Roach backup. By default, the value is the number of primary DNs on the current node plus 1.</p>
</td>
<td class="cellrowborder" valign="top" width="25.897410258974098%" headers="mcps1.3.4.2.2.5.1.4 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p549620229333">1</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_row149672215332"><td class="cellrowborder" valign="top" width="20.72792720727927%" headers="mcps1.3.4.2.2.5.1.1 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p1549617222335">cpu-cores</p>
</td>
<td class="cellrowborder" valign="top" width="19.228077192280768%" headers="mcps1.3.4.2.2.5.1.2 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p280154924113">Restoration parameter</p>
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<td class="cellrowborder" valign="top" width="34.14658534146585%" headers="mcps1.3.4.2.2.5.1.3 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_en-us_topic_0000001342392605_p851217387380">Number of CPU cores that can be used when Roach starts multiple threads concurrently</p>
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<td class="cellrowborder" valign="top" width="25.897410258974098%" headers="mcps1.3.4.2.2.5.1.4 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p2496102210332">The default value is 1/2 of the number of CPU cores.</p>
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</tr>
<tr id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_row54971922163318"><td class="cellrowborder" valign="top" width="20.72792720727927%" headers="mcps1.3.4.2.2.5.1.1 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p64971322153318">logging-level</p>
</td>
<td class="cellrowborder" valign="top" width="19.228077192280768%" headers="mcps1.3.4.2.2.5.1.2 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p29721519149">Restoration parameter</p>
</td>
<td class="cellrowborder" valign="top" width="34.14658534146585%" headers="mcps1.3.4.2.2.5.1.3 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_en-us_topic_0000001290392096_en-us_topic_0000001145650389_a3a94180ba11c402598fd27ffa3cd895b">Log levels:</p>
<ul id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_en-us_topic_0000001290392096_en-us_topic_0000001145650389_u451cee2e9b9847d6a911a1c143a43351"><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_en-us_topic_0000001290392096_en-us_topic_0000001145650389_la5ca2f45e68e41db8964cddb50d3cf9a"><strong id="EN-US_TOPIC_0000001658895274__b6805352142519">FATAL</strong>: Unrecoverable faults that cause the system suspension. This is the most severe level.</li><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_en-us_topic_0000001290392096_en-us_topic_0000001145650389_l7d3fc335d0464f89b816a7264fd6ad27"><strong id="EN-US_TOPIC_0000001658895274__b10656193972616">ERROR</strong>: Major errors.</li><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_en-us_topic_0000001290392096_en-us_topic_0000001145650389_l8792cbd682e14ec5ac9d29cadae554f0"><strong id="EN-US_TOPIC_0000001658895274__b326144414262">WARNING</strong>: Exceptions. In this case, the system may continue to process tasks.</li><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_en-us_topic_0000001290392096_en-us_topic_0000001145650389_l6bc57d8e797541a68ae245680f0a53be"><strong id="EN-US_TOPIC_0000001658895274__b1622873112713">INFO</strong>: Notes.</li><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_en-us_topic_0000001290392096_en-us_topic_0000001145650389_l2990a6252ca04c8b8d50ea9ef8c2d1c4"><strong id="EN-US_TOPIC_0000001658895274__b13990820142716">DEBUG</strong>: Debugging details.</li><li id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_en-us_topic_0000001290392096_en-us_topic_0000001145650389_l412166128cc1412d97e574a5513bd17e"><strong id="EN-US_TOPIC_0000001658895274__b15471122562710">DEBUG2</strong>: Detailed debugging information, which is generally not displayed. This is the least severe level.</li></ul>
</td>
<td class="cellrowborder" valign="top" width="25.897410258974098%" headers="mcps1.3.4.2.2.5.1.4 "><p id="EN-US_TOPIC_0000001658895274__en-us_topic_0000001478356381_p1449715224337">INFO</p>
</td>
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