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Wang , Deng Ke
519944c837
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-authored-by: Wang , Deng Ke <wangdengke2@huawei.com> Co-committed-by: Wang , Deng Ke <wangdengke2@huawei.com>
21 lines
5.4 KiB
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21 lines
5.4 KiB
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<a name="dds_03_0042"></a><a name="dds_03_0042"></a>
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<h1 class="topictitle1">Restoring a Cluster Instance from a Backup</h1>
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<div id="body52179558"><div class="section" id="dds_03_0042__section20967309195347"><h4 class="sectiontitle"><strong id="dds_03_0042__b84235270694112">Scenarios</strong></h4><p id="dds_03_0042__p41350899195353">This section guides you on how to restore a DB instance from a backup.</p>
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<div class="note" id="dds_03_0042__note13044094105342"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="dds_03_0042__p6798239142517">Currently, <span id="dds_03_0042__text1138991044620">DDS</span> only supports restoring backups to a new DB instance.</p>
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<div class="section" id="dds_03_0042__section5636963115314"><h4 class="sectiontitle">Method 1</h4><ol id="dds_03_0042__ol61173609153117"><li id="dds_03_0042__li312682313217"><span><a href="dds_02_0043.html">Log in to the DDS console.</a></span></li><li id="dds_03_0042__li34566410153117"><span>On the <strong id="dds_03_0042__b1296519584299">Instance Management</strong> page, click the target cluster instance.</span></li><li id="dds_03_0042__li167143468218"><span>In the navigation pane on the left, click <span class="uicontrol" id="dds_03_0042__uicontrol627412173017"><b>Backups & Restorations</b></span>.</span></li><li id="dds_03_0042__li56577057154136"><span>On the <strong id="dds_03_0042__b842352706154110">Backups & Restorations</strong> page, locate the target backup in the backup list and click <strong id="dds_03_0042__b842352706154158">Restore</strong> in the <strong id="dds_03_0042__b84235270615428">Operation</strong> column. In the displayed dialog box, click <span class="uicontrol" id="dds_03_0042__uicontrol23094277715435"><b>OK</b></span>. </span></li><li id="dds_03_0042__li1666195115133"><span>On the displayed page, create a DB instance using the same configurations as the backup. The new DB instance is independent from the original one.</span><p><ul id="dds_03_0042__ul47340213174014"><li id="dds_03_0042__li3477171483016">You are recommended to deploy the restored DB instance in a different AZ to ensure that applications will not be adversely affected by the failure in any single AZ, improving data reliability.</li><li id="dds_03_0042__li043814259220">The database type, DB instance type, compatible MongoDB version, storage engine, storage type, and shard quantity must be the same as those of the original and cannot be changed.</li><li id="dds_03_0042__li6361809102020">The quantity of mongos is 2 by default and ranges from 2 to 16. You can specify the quantity.</li><li id="dds_03_0042__li9352044174014">The storage space is the same as that of the original instance by default. You can only increase the storage space.</li><li id="dds_03_0042__li129335133567">Other settings are the same as those of the original DB instance by default and can be modified. For details, see section <a href="dds_02_0008.html">Creating a Cluster Instance</a>.</li></ul>
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</p></li></ol>
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<div class="section" id="dds_03_0042__section33115794114910"><h4 class="sectiontitle">Method 2</h4><ol id="dds_03_0042__ol47948639114632"><li id="dds_03_0042__li1343223289"><span><a href="dds_02_0043.html">Log in to the DDS console.</a></span></li><li id="dds_03_0042__li91361723130"><span>In the navigation pane on the left, click <span class="uicontrol" id="dds_03_0042__uicontrol3997642193012"><b>Backup Management</b></span>.</span></li><li id="dds_03_0042__li28884567114632"><span>On the <strong id="dds_03_0042__b1868603333">Backup Management</strong> page, locate the backup to restore on the <span class="uicontrol" id="dds_03_0042__uicontrol201799208817359"><b>Clusters</b></span> tab and click <span class="uicontrol" id="dds_03_0042__uicontrol7159036123313"><b>Restore</b></span> in the <strong id="dds_03_0042__b446465807">Operation</strong> column. In the displayed dialog box, click <span class="uicontrol" id="dds_03_0042__uicontrol965795116"><b>OK</b></span>.</span></li><li id="dds_03_0042__li57948597114632"><span>On the displayed page, create a DB instance using the same configurations as the backup. The new DB instance is independent from the original one.</span><p><ul id="dds_03_0042__dds_03_0042_ul47340213174014"><li id="dds_03_0042__dds_03_0042_li3477171483016">You are recommended to deploy the restored DB instance in a different AZ to ensure that applications will not be adversely affected by the failure in any single AZ, improving data reliability.</li><li id="dds_03_0042__dds_03_0042_li043814259220">The database type, DB instance type, compatible MongoDB version, storage engine, storage type, and shard quantity must be the same as those of the original and cannot be changed.</li><li id="dds_03_0042__dds_03_0042_li6361809102020">The quantity of mongos is 2 by default and ranges from 2 to 16. You can specify the quantity.</li><li id="dds_03_0042__dds_03_0042_li9352044174014">The storage space is the same as that of the original instance by default. You can only increase the storage space.</li><li id="dds_03_0042__dds_03_0042_li129335133567">Other settings are the same as those of the original DB instance by default and can be modified. For details, see section <a href="dds_02_0008.html">Creating a Cluster Instance</a>.</li></ul>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="dds_03_0006.html">Backup and Restore</a></div>
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