93 lines
5.6 KiB
HTML
93 lines
5.6 KiB
HTML
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<meta name="DC.Title" content="Remove a node from a device domain" />
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<title>Remove a node from a device domain</title>
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</head>
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<body id="rzaigmanageremovenodedevicedomain"><a name="rzaigmanageremovenodedevicedomain"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Remove a node from a device domain</h1>
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<div><p>A device domain is a subset of nodes in a cluster that share device
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resources.</p>
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<div class="section"><div class="important"><span class="importanttitle">Important:</span> <p>Be cautious when removing a node from a
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device domain. If you remove a node from a device domain, and that node is
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the current primary point of access for any independent disk pools, those
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independent disk pools remain with the node being removed. This means that
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those independent disk pools will no longer be accessible from the remaining
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nodes in the device domain.</p>
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<p>Once a node is removed from a device domain,
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it cannot be added back to the same device domain if one or more of the existing
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cluster nodes still belong to that same device domain. In order to add the
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node back to the device domain, you must:</p>
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<ol><li id="rzaigmanageremovenodedevicedomain__manageremovestep"><a name="rzaigmanageremovenodedevicedomain__manageremovestep"><!-- --></a>Delete the independent disk pools currently owned
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by the node being added to the device domain.</li>
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<li> Perform a system restart (IPL) on the node.</li>
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<li>Add the node to the device domain. See Add a node to a device domain.</li>
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<li>Recreate the independent disk pools deleted in Step 1.</li>
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</ol>
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</div>
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<p><strong>Using iSeries™ Navigator</strong></p>
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<p>This requires Option
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41 (HA Switchable Resources) to be installed and licensed.</p>
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<p>To
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remove a node from a device domain in iSeries Navigator, follow these steps:</p>
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</div>
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<ol><li><span>In iSeries Navigator,
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expand <span class="uicontrol">Management Central</span>.</span></li>
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<li><span>Expand <span class="uicontrol">Clusters</span>.</span></li>
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<li><span>Expand the cluster that contains the node you want to remove from
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the device domain.</span></li>
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<li><span>Click <span class="uicontrol">Nodes</span>.</span></li>
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<li><span>Right-click the node you want to remove from the device domain,
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and select <span class="uicontrol">Properties</span>.</span></li>
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<li><span>On the Clustering page, remove the entry in the <span class="uicontrol">Device
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domain</span> field.</span></li>
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</ol>
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<div class="section"><p><strong>Using CL commands and APIs</strong></p>
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<p>You can also use the following
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to remove a node from a device domain:</p>
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<ul><li><a href="../cl/rmvdevdmne.htm"><span class="cmdname">Remove
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Device Domain Entry (RMVDEVDMNE)</span> command</a></li>
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<li><a href="../apis/clcntrmvdde.htm"><span class="apiname">Remove
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Device Domain Entry (QcstRemoveDeviceDomainEntry)</span> API</a></li>
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</ul>
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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="rzaigmanage.htm" title="This topic contains information that covers some of the tasks that involve managing your clusters.">Manage clusters</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="rzaigconceptsdevicedomain.htm" title="A device domain is a subset of nodes in a cluster that share device resources. More specifically, nodes in a device domain can participate in a switching action for some collection of resilient device resources.">Device domains</a></div>
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</div>
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<div class="reltasks"><strong>Related tasks</strong><br />
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<div><a href="rzaigmanageaddnodedevicedomain.htm" title="A device domain is a subset of nodes in a cluster that share device resources.">Add a node to a device domain</a></div>
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<div><a href="../rzaly/rzalyadd.htm">Adding a disk unit or disk pool</a></div>
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</div>
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</div>
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</body>
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