doc-exports/docs/opengauss/umn/opengauss_01_0066.html

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<h1 class="topictitle1">Restoring DB Instances to a Specific Point in Time</h1>
<div id="body1588227561221"><div class="section" id="opengauss_01_0066__sc5f3e87e5cfd4c2fbbdee659791b5931"><h4 class="sectiontitle">Scenarios</h4><p id="opengauss_01_0066__af1d16e209123428c81e21bbccf4063a9">You can use an automated backup to restore a DB instance to a specified point in time.</p>
<p id="opengauss_01_0066__a3bc5d1daec4b483baf44f0621df73962">Backups <span class="keyword" id="opengauss_01_0066__k203aaa53aa5e467f817bab29aa8e6733">can be restored to a new DB instance</span>.</p>
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<div class="section" id="opengauss_01_0066__sbfe89e3bf76a4acc933c5dea685ea532"><h4 class="sectiontitle">Constraints</h4><ul id="opengauss_01_0066__ub14f39323dc3415591eb2d52e0e6b31f"><li id="opengauss_01_0066__l2be79ae6f7e941879d3cb9ab70e52a99">If you restore backup data to a new DB instance:<ul id="opengauss_01_0066__u74a474f49c184c2483f2e665dc8840fa"><li id="opengauss_01_0066__lea2117711e7f47c1b88c0a74bab63419">The DB engine and major version are the same as those of the original DB instance and cannot be changed.</li><li id="opengauss_01_0066__l0038fe74edd74a4ba0254cfdaa93a2bb">You need to set a new administrator password.</li></ul>
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<div class="section" id="opengauss_01_0066__s98c7f5616d354c6abd2e62e0c4903d12"><h4 class="sectiontitle"><strong id="opengauss_01_0066__b11872043111311">Procedure</strong></h4><ol id="opengauss_01_0066__oebb70a56275042cc85a2ab5b21b4c8a5"><li id="opengauss_01_0066__li1292214467124"><span>Log in to the management console.</span></li><li id="opengauss_01_0066__li10923134612121"><span>Click <span><img id="opengauss_01_0066__i251621a9ff0c468daf58c21cd2e9afb3" src="en-us_image_0000001072358973.png"></span> in the upper left corner and select a region and a project.</span></li><li id="opengauss_01_0066__l07b93b70c0924d828c895509d3e57583"><span>Click <strong id="opengauss_01_0066__afab9a51872a0475eac5831778f04beda">Service List</strong>. Under <strong id="opengauss_01_0066__en-us_topic_0241495502_b155592161758">Database</strong>, click <strong id="opengauss_01_0066__en-us_topic_0241495502_b056012161059">GaussDB</strong>.</span></li><li id="opengauss_01_0066__lb7a94adb746945549de0480d03e6919d"><span>In the navigation pane on the left, choose <strong id="opengauss_01_0066__aac73ac6a5277470ca896f424ceddcc09">GaussDB(openGauss)</strong> &gt; <strong id="opengauss_01_0066__a8989b0cbeb2940689376ccc2b84bc056">Instance Management</strong>.</span></li><li id="opengauss_01_0066__l72708760bb1c4e9ab60dc7f65a656dc6"><span>On the <strong id="opengauss_01_0066__b106101144171313">Instance Management</strong> page, click the target DB instance.</span></li><li id="opengauss_01_0066__lfdde80d203b14962bb3701333c7d367a"><span>In the navigation pane on the left, choose <strong id="opengauss_01_0066__b17959248131314">Backups &amp; Restorations</strong>. On the displayed page, click <strong id="opengauss_01_0066__b396411480136">Restore to Point in Time</strong>.</span></li><li id="opengauss_01_0066__l0995855415024dcd9c988c836424bf1e"><span>Select a restoration date and time range, enter a time point within the selected time range, and click <strong id="opengauss_01_0066__b1371115313135">OK</strong>.</span><p><p id="opengauss_01_0066__p195964462619">Restoring data to a new DB instance</p>
<p id="opengauss_01_0066__acd5fa75ef62c4765aa5bcc7d1abe3b23">The <strong id="opengauss_01_0066__b766311466145">Create New Instance</strong> page is displayed.</p>
<ul id="opengauss_01_0066__ua88c74d1ac054fa186a5056b70d67d02"><li id="opengauss_01_0066__l59854ae18ede44cd8f4f54ac6e7d5198">The DB engine and version of the new DB instance are the same as those of the original DB instance and cannot be changed.</li><li id="opengauss_01_0066__l68189c9fc4c043c48c372e408b31d863">Storage space of the new DB instance is the same as that of the original DB instance by default and cannot be less than that of the original DB instance. The administrator password needs to be reset.</li><li id="opengauss_01_0066__li153434563819">The instance class of the new DB instance is the same as that of the original DB instance by default and must be greater than or equal to that of the original DB instance.</li><li id="opengauss_01_0066__li161231718144013">The number of CNs and shards of the new DB instance must be the same as that of the original DB instance during the backup.</li></ul>
<p id="opengauss_01_0066__acff74b0f605a4981aa900f11527933e4">Select an existing DB instance and click <span class="uicontrol" id="opengauss_01_0066__u3f9903cf1c2843ebaa796143de445fcd"><b>OK</b></span>.</p>
</p></li><li id="opengauss_01_0066__l6d8f0c30e3134ab3b01619ecbf726760"><span>View the restoration result.</span><p><p id="opengauss_01_0066__p774268122714">Restoring data to a new DB instance</p>
<p id="opengauss_01_0066__adeaf5dcdf4cb48f7bf0ecfd98ff12bf3">A new DB instance is created using the backup data. The status of the DB instance changes from <span class="uicontrol" id="opengauss_01_0066__uicontrol38278431170"><b>Creating</b></span> to <span class="uicontrol" id="opengauss_01_0066__uicontrol483219434173"><b>Available</b></span>.</p>
<p id="opengauss_01_0066__abc68b981ce414617be68d2bac2e23a3a">The new DB instance is independent from the original one.</p>
<p id="opengauss_01_0066__aadbc79516a9d4f5d8a2fb10441102024">On the <strong id="opengauss_01_0066__b1475115565171">Instance Management</strong> page, the status of the DB instance changes from <span class="uicontrol" id="opengauss_01_0066__uicontrol1575718562176"><b>Restoring</b></span> to <span class="uicontrol" id="opengauss_01_0066__uicontrol2075816562175"><b>Available</b></span>.</p>
<p id="opengauss_01_0066__a2af1078c56334d5d9003c71bef9e11e8">A full backup is triggered after the new DB instance is created.</p>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="opengauss_01_0062.html">Backup and Restoration</a></div>
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