forked from docs/doc-exports
Lu, Huayi
c5fcb46315
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-authored-by: Lu, Huayi <luhuayi@huawei.com> Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
44 lines
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44 lines
12 KiB
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<a name="EN-US_TOPIC_0000001180320249"></a><a name="EN-US_TOPIC_0000001180320249"></a>
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<h1 class="topictitle1">DR Management</h1>
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<div id="body0000001082738789"><div class="section" id="EN-US_TOPIC_0000001180320249__section4432124194612"><a name="EN-US_TOPIC_0000001180320249__section4432124194612"></a><a name="section4432124194612"></a><h4 class="sectiontitle">Starting a DR Task</h4><ol id="EN-US_TOPIC_0000001180320249__ol6493175563012"><li id="EN-US_TOPIC_0000001180320249__li24941355193017"><span>Log in to the GaussDB(DWS) management console.</span></li><li id="EN-US_TOPIC_0000001180320249__li94951155143018"><span>In the navigation pane on the left, click <strong id="EN-US_TOPIC_0000001180320249__en-us_topic_0000001134400768_b1282816511795">DR Tasks</strong>.</span></li><li id="EN-US_TOPIC_0000001180320249__li25916796163327"><span>Click <strong id="EN-US_TOPIC_0000001180320249__b1184412317246">Start</strong> in the <strong id="EN-US_TOPIC_0000001180320249__b739983415240">Operation</strong> column of the target DR task.</span></li><li id="EN-US_TOPIC_0000001180320249__li48630339105019"><span>In the dialog box that is displayed, click <span class="uicontrol" id="EN-US_TOPIC_0000001180320249__uicontrol1310109410525"><b>OK</b></span>.</span><p><p id="EN-US_TOPIC_0000001180320249__p48075126123536">The DR status will change to <strong id="EN-US_TOPIC_0000001180320249__b75720470323">Starting</strong>. The process will take some time. After the task is started, the DR status will change to <strong id="EN-US_TOPIC_0000001180320249__b185741624113316">Running</strong>.</p>
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<div class="note" id="EN-US_TOPIC_0000001180320249__note982425211381"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000001180320249__ul69231148191018"><li id="EN-US_TOPIC_0000001180320249__li1793023585010">You can start a DR task that is in the <strong id="EN-US_TOPIC_0000001180320249__b1729217329133">Not started</strong>/<strong id="EN-US_TOPIC_0000001180320249__b929812326136">Startup failed</strong>/<strong id="EN-US_TOPIC_0000001180320249__b162982320132">Stopped</strong> state.</li><li id="EN-US_TOPIC_0000001180320249__li1092311489109">After you start the DR task, you cannot perform operations, including restoration, scale-out, upgrade, restart, and node replacement, on the production cluster and DR cluster. Backup is also not allowed on the DR cluster. Exercise caution when performing this operation.</li></ul>
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</div></div>
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</p></li></ol>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001180320249__section68813160462"><h4 class="sectiontitle">Stopping the DR Task</h4><ol id="EN-US_TOPIC_0000001180320249__ol611651411421"><li id="EN-US_TOPIC_0000001180320249__li9116171494216"><span>Log in to the GaussDB(DWS) management console.</span></li><li id="EN-US_TOPIC_0000001180320249__li811681414421"><span>In the navigation pane on the left, click <strong id="EN-US_TOPIC_0000001180320249__en-us_topic_0000001134400768_b1282816511795_1">DR Tasks</strong>.</span></li><li id="EN-US_TOPIC_0000001180320249__li195271723124216"><span>Click <strong id="EN-US_TOPIC_0000001180320249__b7302203412014">Stop</strong> in the <strong id="EN-US_TOPIC_0000001180320249__b13025343204">Operation</strong> column of the target DR task.</span></li><li id="EN-US_TOPIC_0000001180320249__li02629218477"><span>In the dialog box that is displayed, click <span class="uicontrol" id="EN-US_TOPIC_0000001180320249__uicontrol1243181611478"><b>OK</b></span>.</span><p><p id="EN-US_TOPIC_0000001180320249__p1432111614716">The DR status will change to <strong id="EN-US_TOPIC_0000001180320249__b33911242113410">Stopping</strong>. The process will take some time. After the DR task is stopped, the status will change to <strong id="EN-US_TOPIC_0000001180320249__b1929010483520">Stopped</strong>.</p>
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<div class="note" id="EN-US_TOPIC_0000001180320249__note198814654210"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000001180320249__ul5775134318106"><li id="EN-US_TOPIC_0000001180320249__li1099695645110">Only DR tasks in the <strong id="EN-US_TOPIC_0000001180320249__b43510392134">Running</strong> or <strong id="EN-US_TOPIC_0000001180320249__b74153951313">Stop failed</strong> state can be stopped.</li><li id="EN-US_TOPIC_0000001180320249__li19775174301012">Data cannot be synchronized after a DR task is stopped.</li></ul>
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</div></div>
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</p></li></ol>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001180320249__section186421928164617"><h4 class="sectiontitle">Switching to the DR Cluster</h4><ol id="EN-US_TOPIC_0000001180320249__ol16599224443"><li id="EN-US_TOPIC_0000001180320249__li459914214411"><span>Log in to the GaussDB(DWS) management console.</span></li><li id="EN-US_TOPIC_0000001180320249__li10599172114419"><span>In the navigation pane on the left, click <strong id="EN-US_TOPIC_0000001180320249__en-us_topic_0000001134400768_b1282816511795_2">DR Tasks</strong>.</span></li><li id="EN-US_TOPIC_0000001180320249__li196001234413"><span>Click <strong id="EN-US_TOPIC_0000001180320249__b141791153132516">Switch to DR Cluster</strong> in the <strong id="EN-US_TOPIC_0000001180320249__b8179135322514">Operation</strong> column of the target DR task.</span></li><li id="EN-US_TOPIC_0000001180320249__li91130154816"><span>In the dialog box that is displayed, click <span class="uicontrol" id="EN-US_TOPIC_0000001180320249__uicontrol1872016482"><b>OK</b></span>.</span><p><p id="EN-US_TOPIC_0000001180320249__p10871120487">The DR status will change to <strong id="EN-US_TOPIC_0000001180320249__b19646184092713">DR switching</strong>.</p>
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<p id="EN-US_TOPIC_0000001180320249__p458415421692">After the switchover is successful, the DR status will change to the original status.</p>
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<div class="note" id="EN-US_TOPIC_0000001180320249__note206009220442"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000001180320249__ul682023717106"><li id="EN-US_TOPIC_0000001180320249__li534343517530">You can perform a DR switchover when the DR task is in the <strong id="EN-US_TOPIC_0000001180320249__b188905017144">Running</strong> or <strong id="EN-US_TOPIC_0000001180320249__b17890704148">Abnormal</strong> state.</li><li id="EN-US_TOPIC_0000001180320249__li1082615373105">During a switchover, the original production cluster is not available.</li><li id="EN-US_TOPIC_0000001180320249__li11162143121313">RPO of DR switchover:<ul id="EN-US_TOPIC_0000001180320249__ul5735135051312"><li id="EN-US_TOPIC_0000001180320249__li105191115131612">Production cluster in the <strong id="EN-US_TOPIC_0000001180320249__b73842527378">Available</strong> state: RPO = 0</li><li id="EN-US_TOPIC_0000001180320249__li29571937409">Production cluster in the <strong id="EN-US_TOPIC_0000001180320249__b18372115105316">Unavailable</strong> state: A zero RPO may not be achieved, but data can at least be restored to that of the latest successful DR synchronization (<strong id="EN-US_TOPIC_0000001180320249__b124595516232">Last DR Succeeded</strong>). For details, see <a href="dws_01_00083.html">Viewing DR Information</a>.</li></ul>
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</li></ul>
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</div></div>
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</p></li></ol>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001180320249__section1869120274302"><h4 class="sectiontitle">Updating DR Configurations</h4><ol id="EN-US_TOPIC_0000001180320249__ol71803891610"><li id="EN-US_TOPIC_0000001180320249__li6029015714233"><span>Log in to the GaussDB(DWS) management console.</span></li><li id="EN-US_TOPIC_0000001180320249__li38983837105359"><span>In the navigation pane on the left, click <strong id="EN-US_TOPIC_0000001180320249__en-us_topic_0000001134400768_b1282816511795_3">DR Tasks</strong>.</span></li><li id="EN-US_TOPIC_0000001180320249__li129909103263"><span>In the DR list, click the DR name to go to the DR information page.</span></li><li id="EN-US_TOPIC_0000001180320249__li29903558266"><span>In the <strong id="EN-US_TOPIC_0000001180320249__b1448119322283">DR Configurations</strong> area, click <strong id="EN-US_TOPIC_0000001180320249__b13407415284">Modify</strong>.</span><p><p id="EN-US_TOPIC_0000001180320249__p3404013193011"><span><img id="EN-US_TOPIC_0000001180320249__image940414134307" src="figure/en-us_image_0000001134401018.png" height="147.63" width="523.6875" title="Click to enlarge" class="imgResize"></span></p>
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<div class="note" id="EN-US_TOPIC_0000001180320249__note1088013810209"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000001180320249__ul1225716581118"><li id="EN-US_TOPIC_0000001180320249__li66781220125416">Only DR tasks in the <strong id="EN-US_TOPIC_0000001180320249__b19921132391415">Not started</strong> or <strong id="EN-US_TOPIC_0000001180320249__b1692118234144">Stopped</strong> state can be modified.</li><li id="EN-US_TOPIC_0000001180320249__li525815161110">The new configuration takes effect after DR is restarted.</li></ul>
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</div></div>
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</p></li></ol>
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</div>
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<div class="section" id="EN-US_TOPIC_0000001180320249__section1631535174714"><a name="EN-US_TOPIC_0000001180320249__section1631535174714"></a><a name="section1631535174714"></a><h4 class="sectiontitle">Deleting DR Tasks</h4><ol id="EN-US_TOPIC_0000001180320249__ol7234135954410"><li id="EN-US_TOPIC_0000001180320249__li523455918442"><span>Log in to the GaussDB(DWS) management console.</span></li><li id="EN-US_TOPIC_0000001180320249__li11234195914442"><span>In the navigation pane on the left, click <strong id="EN-US_TOPIC_0000001180320249__en-us_topic_0000001134400768_b1282816511795_4">DR Tasks</strong>.</span></li><li id="EN-US_TOPIC_0000001180320249__li112351559144413"><span>Click <strong id="EN-US_TOPIC_0000001180320249__b3751191052515">Delete</strong> in the <strong id="EN-US_TOPIC_0000001180320249__b17751101072518">Operation</strong> column of the target DR task.</span></li><li id="EN-US_TOPIC_0000001180320249__li14164315489"><span>In the dialog box that is displayed, click <span class="uicontrol" id="EN-US_TOPIC_0000001180320249__uicontrol13421636144810"><b>OK</b></span>.</span><p><div class="p" id="EN-US_TOPIC_0000001180320249__p181117546484">The DR status will change to <strong id="EN-US_TOPIC_0000001180320249__b19358101282910">Deleting</strong>.<div class="note" id="EN-US_TOPIC_0000001180320249__note20651543124819"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000001180320249__ul25943216112"><li id="EN-US_TOPIC_0000001180320249__li1269162595510">You can delete a DR task when <strong id="EN-US_TOPIC_0000001180320249__b1172104171410">DR Status</strong> is <strong id="EN-US_TOPIC_0000001180320249__b1178174141410">Creation failed</strong>, <strong id="EN-US_TOPIC_0000001180320249__b6179174111147">Not started</strong>, <strong id="EN-US_TOPIC_0000001180320249__b717974151416">Startup failed</strong>, <strong id="EN-US_TOPIC_0000001180320249__b1217974113147">Stopped</strong>, <strong id="EN-US_TOPIC_0000001180320249__b6179124141418">Stop failed</strong>, or <strong id="EN-US_TOPIC_0000001180320249__b1018014412142">Abnormal</strong>.</li><li id="EN-US_TOPIC_0000001180320249__li18595142181115">Data cannot be synchronized after a DR task is deleted, and the deleted task cannot be restored.</li></ul>
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</div>
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</p></li></ol>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="dws_01_0080.html">Cluster DR</a></div>
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</div>
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</div>
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