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HTML
421 lines
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<title>Frequently asked questions about iSeries Navigator cluster management</title>
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</head>
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<body id="rzaigfaq"><a name="rzaigfaq"><!-- --></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">Frequently asked questions about iSeries Navigator cluster management</h1>
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<div><p>Questions and answers about the iSeries™ Navigator graphical user interface
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for creating and managing clusters.</p>
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<div class="section"><p>The IBM<sup>®</sup> graphical
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user interface for creating and managing clusters is available in iSeries Navigator
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and accessible through Option 41 (HA Switchable Resources). See iSeries Navigator
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cluster management for details on the interface.</p>
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<p>Here is a list of iSeries Navigator
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cluster management questions and answers.</p>
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</div>
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<div class="section" id="rzaigfaq__questions"><a name="rzaigfaq__questions"><!-- --></a><h4 class="sectiontitle">General</h4><ol><li><a href="#rzaigfaq__checklist">Is there a checklist that outlines the
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prerequisites to creating a cluster?</a></li>
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</ol>
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</div>
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<div class="section"><h4 class="sectiontitle">iSeries Navigator
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cluster management</h4><ol><li><a href="#rzaigfaq__location">Where is the Clusters function located
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in the iSeries Navigator
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interface?</a></li>
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<li><a href="#rzaigfaq__createcluster">How do I create a cluster?</a></li>
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<li><a href="#rzaigfaq__sysgroup">What is the relationship between the Clusters
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folder and the Management Central system group?</a></li>
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<li><a href="#rzaigfaq__addexistingcluster">I already have a cluster defined
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on some iSeries systems
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in the network. How do I add it so I can view and manage it through iSeries Navigator?</a></li>
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<li><a href="#rzaigfaq__statusstarted">None of the nodes in my cluster have
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a status of "Started". Which node should I start first?</a></li>
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<li><a href="#rzaigfaq__startfirst">Why should I care which node is started
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first?</a></li>
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<li><a href="#rzaigfaq__node">What does the "Current Primary Node" column
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mean in the switchable devices and switchable applications folders?</a></li>
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<li><a href="#rzaigfaq__deviceCRG">How do I find a device cluster resource
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group (CRG) in iSeries Navigator?</a></li>
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<li><a href="#rzaigfaq__appCRG">How do I find an application cluster resource
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group (CRG) in iSeries Navigator?</a></li>
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<li><a href="#rzaigfaq__dataCRG">How do I find a data cluster resource group
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(CRG) in iSeries Navigator?</a></li>
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<li><a href="#rzaigfaq__openswitchhardware">I want to be able to see the
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switchable device (device CRG) status without having to go back up to the
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Switchable Hardware folder to see it. How can I do this?</a></li>
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</ol>
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</div>
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<div class="section"><h4 class="sectiontitle">Communications</h4><ol><li><a href="#rzaigfaq__ip">What IP address does the Clusters function in iSeries Navigator
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use to communicate with the nodes in the cluster? Doesn't it use the IP address
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of the node name?</a></li>
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</ol>
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</div>
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<div class="section"><h4 class="sectiontitle">Security</h4><ol><li><a href="#rzaigfaq__contextdisabled">Why are most of the context menus
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in the Clusters folder in iSeries Navigator disabled or disappeared?</a></li>
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<li><a href="#rzaigfaq__appadminvalues">Does the Clusters function in iSeries Navigator
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use Application Administration values?</a></li>
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<li><a href="#rzaigfaq__signon">Why does the Clusters function in iSeries Navigator
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show a signon window to my nodes in the cluster?</a></li>
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</ol>
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</div>
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<div class="section"><h4 class="sectiontitle">Troubleshooting</h4><ol><li><a href="#rzaigfaq__folder">Why isn't the Clusters folder showing up
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under Management Central?</a> </li>
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<li><a href="#rzaigfaq__clustermissing">I already have a cluster, but it
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doesn't show up in the Clusters folder. Why?</a></li>
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<li><a href="#rzaigfaq__status">Why doesn't the latest status show up in
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the Clusters folder?</a></li>
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<li><a href="#rzaigfaq__failover">Why didn't a failover of my switchable
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hardware group or switchable application occur?</a></li>
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<li><a href="#rzaigfaq__damagedobject">I received a message for a damaged
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object. What can I do about it?</a></li>
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<li><a href="#rzaigfaq__browse">I'm using the "Browse" button in the wizards
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for the nodes to browse for IP addresses. Why aren't all of the TCP/IP addresses
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that I expect showing up in the browse window?</a></li>
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<li><a href="#rzaigfaq__contextdisabled">Why are most of the context menus
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in the Clusters folder in iSeries Navigator disabled or disappeared?</a></li>
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<li><a href="#rzaigfaq__noswitchablesoftware">I was using the "New Cluster"
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wizard and I got a panel titled: "New Cluster - No Switchable Software Found".
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Is this bad?</a></li>
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<li><a href="#rzaigfaq__notcommunicating">One of my nodes has a status of
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"Not communicating". How do I correct this?</a></li>
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</ol>
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</div>
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<div class="section"><p><strong>General</strong></p>
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<p id="rzaigfaq__checklist"><a name="rzaigfaq__checklist"><!-- --></a><strong>Is there a checklist that
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outlines the prerequisites to creating a cluster?</strong></p>
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<p>Yes. Use the <a href="rzaigconfigchecklist.htm">Cluster configuration checklist</a> to
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make sure that you are prepared to configure clusters in your environment.</p>
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<p><a href="#rzaigfaq__questions">Back to questions</a></p>
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<p id="rzaigfaq__location"><a name="rzaigfaq__location"><!-- --></a><strong>iSeries Navigator
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cluster management: Where is the Clusters function located in the iSeries Navigator
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interface?</strong></p>
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<p>The iSeries Navigator cluster management interface is
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available as a part of the software package IBM iSeries Access. The Clusters function
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is located in the Management Central folder in iSeries Navigator. See <a href="rzaigconfigsimpleclustermanagement.htm">iSeries Navigator
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cluster management</a> for details.</p>
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<p><a href="#rzaigfaq__questions">Back
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to questions</a></p>
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<p id="rzaigfaq__createcluster"><a name="rzaigfaq__createcluster"><!-- --></a><strong>How do I create a cluster?</strong></p>
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<p>To
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create a simple cluster using the New Cluster wizard in iSeries Navigator,
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follow these steps:</p>
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<ol><li>In iSeries Navigator,
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expand <span class="uicontrol">Management Central</span>.</li>
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<li>Right-click <span class="uicontrol">Clusters</span>, and select <span class="uicontrol">New
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Cluster</span>.</li>
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<li>Follow the wizard's instructions to create a cluster.</li>
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</ol>
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<p>For complete details on creating and configuring a cluster, see <a href="rzaigconfigcreatecluster.htm">Configure
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a cluster</a>.</p>
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<p><a href="#rzaigfaq__questions">Back to questions</a></p>
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<p id="rzaigfaq__sysgroup"><a name="rzaigfaq__sysgroup"><!-- --></a><strong>What is the relationship between the Clusters folder and
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the Management Central system group?</strong></p>
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<p>When you use iSeries Navigator
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to create a cluster, a system group is also created on the Management Central
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server. The system group is given the same name as the cluster name and the
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endpoint systems in the system group are the nodes in the cluster. The system
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group also has its own special type so that iSeries Navigator knows it is a special
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system group that represents a cluster.</p>
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<div class="important"><span class="importanttitle">Important:</span> The Management
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Central system contains the system groups. If you choose to change your current
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Management Central system in iSeries Navigator, the new management central system
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will not have the special cluster system groups, and therefore those clusters
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will not show up in the Clusters folder.</div>
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<p><a href="#rzaigfaq__questions">Back
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to questions</a></p>
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<p id="rzaigfaq__addexistingcluster"><a name="rzaigfaq__addexistingcluster"><!-- --></a><strong>I already have a cluster
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defined on some iSeries systems
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in the network. How do I add it so I can view and manage it through iSeries Navigator?</strong></p>
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<p>To
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add an existing cluster to appear through iSeries Navigator, follow these steps:</p>
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<ol><li>In iSeries Navigator,
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expand <span class="uicontrol">Management Central</span>.</li>
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<li>Right-click <span class="uicontrol">Clusters</span>, and select <span class="uicontrol">Add
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Existing Cluster.</span></li>
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<li>On the <span class="uicontrol">Add Existing Cluster</span> window, specify one
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of the servers in the cluster.</li>
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<li>Click OK.</li>
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</ol>
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<p><a href="#rzaigfaq__questions">Back to questions</a></p>
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<p id="rzaigfaq__statusstarted"><a name="rzaigfaq__statusstarted"><!-- --></a><strong>None
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of the nodes in my cluster have a status of "Started". Which node should I
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start first?</strong></p>
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<p>You should start the node that most recently had a
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status of "Started". For example, say you have two nodes in your cluster:
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A and B. Node A is currently not started and node B is currently not started.
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However, node B was the last node to be running with a status of "Started".
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You should start node B first because it will have the most recent information
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about the cluster.</p>
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<p><a href="#rzaigfaq__questions">Back to questions</a></p>
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<p id="rzaigfaq__startfirst"><a name="rzaigfaq__startfirst"><!-- --></a><strong>Why should I care which node is started first?</strong></p>
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<p>You
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should care because the node that most recently had a status of "Started"
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is the node that contains the latest information about the cluster. This is
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important because if you started the other node that had been down the longest,
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then it may contain outdated information about the cluster. The danger is
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that the outdated information can get propagated to the other nodes in the
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cluster when those other nodes are started. For example, say have a two node
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cluster with nodes A and B. If node B was the most recently active node with
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a status of "Started", then it will contain the latest cluster information.
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If you choose to start node A first, then it might contain some outdated information,
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but will still be started. When you then start node B, it will join with a
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currently active node in the cluster (it joins with node A). The outdated
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cluster information from node A will get propagated to node B and the result
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is that both nodes will contain outdated information about the cluster. This
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is why it is important to start node B first. The outdated cluster information
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can have an effect on the configuration of the switchable devices. If you
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find that you have some problems starting up switchable devices because of
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disk units reporting in on the backup node when the switchable hardware group
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is showing a different current node, then you will need to change the role
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of nodes in the recovery domain, making the node which owns the disk units
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the primary node.</p>
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<p><a href="#rzaigfaq__questions">Back to questions</a></p>
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<p id="rzaigfaq__node"><a name="rzaigfaq__node"><!-- --></a><strong>What does the "Current Primary Node" column mean in the Switchable
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Hardware, Switchable Software, and Switchable Data folders?</strong></p>
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<p>The
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"Current Primary Node" column indicates that the node that is currently serving
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as the primary node for the switchable device or switchable software product.
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Or, in cluster API terminology, it means that it is the node with the current
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role in the recovery domain of primary.</p>
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<p><a href="#rzaigfaq__questions">Back
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to questions</a></p>
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<p id="rzaigfaq__deviceCRG"><a name="rzaigfaq__deviceCRG"><!-- --></a><strong>How do I find a device cluster
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resource group (CRG) in iSeries Navigator?</strong></p>
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<p>Device CRGs (cluster
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resource groups) are referred to as Switchable Hardware Groups and found in
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the <span class="uicontrol">Switchable Hardware</span> folder in the Clusters folder.</p>
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<p><a href="#rzaigfaq__questions">Back to questions</a></p>
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<p id="rzaigfaq__appCRG"><a name="rzaigfaq__appCRG"><!-- --></a><strong>How
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do I find an application cluster resource group (CRG) in iSeries Navigator?</strong></p>
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<p>Application
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CRGs (cluster resource groups) are referred to as Switchable Software Products
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and found in the <span class="uicontrol">Switchable Software</span> folder in the
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Clusters folder.</p>
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<p><a href="#rzaigfaq__questions">Back to questions</a></p>
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<p id="rzaigfaq__dataCRG"><a name="rzaigfaq__dataCRG"><!-- --></a><strong>How do I find a data cluster resource group (CRG) in iSeries Navigator?</strong></p>
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<p>Data
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CRGs (cluster resource groups) are referred to as Switchable Data Groups and
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found in the <span class="uicontrol">Switchable Data</span> folder in the Clusters
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folder.</p>
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<p><a href="#rzaigfaq__questions">Back to questions</a></p>
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<p id="rzaigfaq__openswitchhardware"><a name="rzaigfaq__openswitchhardware"><!-- --></a><strong>I want to be able to see the Switchable Hardware
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Group (device CRG) status without having to go back up to the Switchable Hardware
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folder to see it. How can I do this?</strong></p>
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<p>As an alternative to navigating
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to the Switchable Hardware folder every time you want to view status, you
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can also open a new window with the Switchable Hardware view by right-clicking
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on the <span class="uicontrol">Switchable Hardware</span> folder and selecting <span class="uicontrol">Open</span>.
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The separate window will show the Switchable Hardware Groups (device CRGs)
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and their associated status information. This also applies for <span class="uicontrol">Switchable
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Software</span> and <span class="uicontrol">Switchable Data</span>.</p>
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<p><a href="#rzaigfaq__questions">Back to questions</a></p>
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<p id="rzaigfaq__ip"><a name="rzaigfaq__ip"><!-- --></a><strong>Communications:
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What IP address does the Clusters function in iSeries Navigator use to communicate
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with the nodes in the cluster? Doesn't it use the IP address of the node name?</strong></p>
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<p>There
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is a "Server" column in the main Clusters folder that displays information
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about your configured clusters. The server name is also on the properties
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panel for each cluster. The server listed in the "Server" column is the node
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in the cluster that the iSeries Navigator interface uses to communicate with
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the cluster. It only applies to how iSeries Navigator communicates with the
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cluster object on the server, not how the nodes in the cluster communicate
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with one another. The server used by iSeries Navigator cluster management
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has nothing to do with the current Management Central server.</p>
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<p>If the
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node that iSeries Navigator
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is using to communicate with the cluster goes down, you can change the communications
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vehicle to a different node in the cluster to perform cluster actions.</p>
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<p>To
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change the server that will be used by the iSeries Navigator interface to communicate
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to the cluster, follow these steps:</p>
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<ol><li>In iSeries Navigator,
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expand <span class="uicontrol">Management Central</span>.</li>
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<li>Expand <span class="uicontrol">Clusters</span>.</li>
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<li>Right-click the cluster, and select <span class="uicontrol">Change Server</span>.</li>
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</ol>
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<p><a href="#rzaigfaq__questions">Back to questions</a></p>
|
||
|
|
<p id="rzaigfaq__contextdisabled"><a name="rzaigfaq__contextdisabled"><!-- --></a><strong>Security:
|
||
|
|
Why are most of the context menus in the Clusters folder in iSeries Navigator
|
||
|
|
disabled or disappeared?</strong></p>
|
||
|
|
<p>Some operations are only available depending
|
||
|
|
on the state of the current configuration of your cluster. For example, you
|
||
|
|
cannot stop a node that is already stopped, you cannot add a node to a cluster
|
||
|
|
that already has the maximum amount of nodes, four, configured. The online
|
||
|
|
help for particular tasks has explanations of why some of these items are
|
||
|
|
disabled or not available.</p>
|
||
|
|
<p>Some operations are not available if you
|
||
|
|
don't have enough authority. If you are using iSeries Navigator and you have *SECOFR
|
||
|
|
userclass authority, you will have access to all cluster operations and administration. iSeries Navigator
|
||
|
|
uses Application Administration authority from the current Management Central
|
||
|
|
system to determine if you have Application Administration authority for the
|
||
|
|
various iSeries Navigator
|
||
|
|
cluster management operations.</p>
|
||
|
|
<p>See <a href="../rzaj3/rzaj3overview.htm" target="_blank">Application Administration</a> for details
|
||
|
|
on working with Application Administration.</p>
|
||
|
|
<p><a href="#rzaigfaq__questions">Back
|
||
|
|
to questions</a></p>
|
||
|
|
<p id="rzaigfaq__appadminvalues"><a name="rzaigfaq__appadminvalues"><!-- --></a><strong>Does the clusters function
|
||
|
|
in iSeries Navigator
|
||
|
|
use Application Administration values?</strong></p>
|
||
|
|
<p>Yes. iSeries Navigator cluster management
|
||
|
|
uses the Application Administration authority values from the current Management
|
||
|
|
Central system to determine if you have Application Administration authority
|
||
|
|
for various cluster operations.</p>
|
||
|
|
<p>iSeries Navigator has two types of authority
|
||
|
|
settings for access: <span class="uicontrol">Cluster Operation</span> and <span class="uicontrol">Cluster
|
||
|
|
Administration</span></p>
|
||
|
|
<p>With the <span class="uicontrol">Cluster Operation</span> authority,
|
||
|
|
you can:</p>
|
||
|
|
<ul><li>View the status of the cluster</li>
|
||
|
|
<li>Start and stop nodes</li>
|
||
|
|
<li>Start and stop switchable hardware and switchable software</li>
|
||
|
|
<li>Perform manual switching of switchable hardware and switchable software</li>
|
||
|
|
</ul>
|
||
|
|
<p>With the <span class="uicontrol">Cluster Administration</span> authority,
|
||
|
|
you can:</p>
|
||
|
|
<ul><li>Create/Delete clusters</li>
|
||
|
|
<li>Add and remove nodes</li>
|
||
|
|
<li>Add and delete switchable hardware, switchable software, and disk pools</li>
|
||
|
|
<li>Change the properties of switchable hardware and switchable software</li>
|
||
|
|
</ul>
|
||
|
|
<p><a href="#rzaigfaq__questions">Back to questions</a></p>
|
||
|
|
<p id="rzaigfaq__signon"><a name="rzaigfaq__signon"><!-- --></a><strong>Why
|
||
|
|
does the Clusters function in iSeries Navigator show a signon window
|
||
|
|
to my nodes in the cluster?</strong></p>
|
||
|
|
<p>In some cases, iSeries Navigator will try to communicate
|
||
|
|
with all of the nodes in the cluster. This depends on the state of your cluster.
|
||
|
|
When iSeries Navigator
|
||
|
|
needs to communicate with a node, it will first search the existing signon
|
||
|
|
cache in iSeries Navigator
|
||
|
|
to try to find an existing open connection. If it does not find an existing
|
||
|
|
connection, it will then ask the user to sign on. If you cancel the signon
|
||
|
|
window, iSeries Navigator
|
||
|
|
will make an attempt to allow the user to do cluster operations. Some operations
|
||
|
|
may not be possible if iSeries Navigator can't communicate with the nodes.</p>
|
||
|
|
<p><a href="#rzaigfaq__questions">Back to questions</a></p>
|
||
|
|
<p id="rzaigfaq__folder"><a name="rzaigfaq__folder"><!-- --></a><strong>Troubleshooting:
|
||
|
|
Why isn't the Clusters folder showing up under Management Central?</strong></p>
|
||
|
|
<p>It
|
||
|
|
is possible that you didn't do a full install of iSeries Access for Windows<sup>®</sup> on
|
||
|
|
your PC. You may have performed a basic install or chosen some custom options.
|
||
|
|
See <a href="../rzahg/rzahgicia.htm" target="_blank">iSeries Access</a> for
|
||
|
|
details on installation.</p>
|
||
|
|
<p><a href="#rzaigfaq__questions">Back to questions</a></p>
|
||
|
|
<p id="rzaigfaq__clustermissing"><a name="rzaigfaq__clustermissing"><!-- --></a><strong>I already have a cluster, but it doesn't show up in
|
||
|
|
the Clusters folder. Why?</strong></p>
|
||
|
|
<p>The short answer is this: It isn't showing
|
||
|
|
up because there is not a system group on your Management Central system that
|
||
|
|
represents the cluster. That system group representing the cluster is created
|
||
|
|
by iSeries Navigator
|
||
|
|
cluster management when either the cluster is created or the cluster is added
|
||
|
|
to the Clusters folder by using the "add existing cluster" action. You can
|
||
|
|
expand the <span class="uicontrol">System Groups</span> folder in Management Central
|
||
|
|
to see the system groups. The cluster system groups will show up as "third
|
||
|
|
party" system groups, but don't assume all "third party" system groups are
|
||
|
|
clusters.</p>
|
||
|
|
<p><a href="#rzaigfaq__questions">Back to questions</a></p>
|
||
|
|
<p id="rzaigfaq__status"><a name="rzaigfaq__status"><!-- --></a><strong>Why doesn't the latest status show up in the Clusters folder?</strong></p>
|
||
|
|
<p>iSeries Navigator
|
||
|
|
displays information about configured clusters as a shapshot by going out
|
||
|
|
to the cluster nodes and getting the latest information about the cluster
|
||
|
|
and then displaying it in the iSeries Navigator window. It does not
|
||
|
|
automatically perform regular updates of the information. The best way to
|
||
|
|
get the latest snapshot of information is to do a manual refresh. You can
|
||
|
|
use the <span class="uicontrol">View</span> menu in iSeries Navigator and then choose the <span class="uicontrol">Refresh</span> option.
|
||
|
|
The alternative is to set up iSeries Navigator to perform automatic refreshes.</p>
|
||
|
|
<p><a href="#rzaigfaq__questions">Back to questions</a></p>
|
||
|
|
<p id="rzaigfaq__failover"><a name="rzaigfaq__failover"><!-- --></a><strong>Why
|
||
|
|
didn't a failover of my switchable device, switchable application, or switchable
|
||
|
|
data group occur?</strong></p>
|
||
|
|
<p>The most likely scenario is that you didn't have
|
||
|
|
the switchable resource (cluster resource group) started in the cluster. In
|
||
|
|
other words, before the automatic failover was to occur, the status of the
|
||
|
|
switchable resource was not "Started". Your switchable resources must be started
|
||
|
|
for a failover to occur.</p>
|
||
|
|
<p><a href="#rzaigfaq__questions">Back to questions</a></p>
|
||
|
|
<p id="rzaigfaq__damagedobject"><a name="rzaigfaq__damagedobject"><!-- --></a><strong>I received a message for a damaged object. What can
|
||
|
|
I do about it?</strong></p>
|
||
|
|
<p>You may have received a message like this: <kbd class="userinput">CPF811C
|
||
|
|
User queue QUGCLUSRQ in QCLUMGT damaged</kbd></p>
|
||
|
|
<p><span class="uicontrol">Option
|
||
|
|
1:</span> One option is to delete the object and restore it. This is
|
||
|
|
only possible if you previously saved the object.</p>
|
||
|
|
<p><span class="uicontrol">Option
|
||
|
|
2:</span> Delete the damaged object. For example, if QUGCLUSRQ in library
|
||
|
|
QCLUMGT is damaged, then delete the object. Then add the existing cluster
|
||
|
|
in iSeries Navigator.
|
||
|
|
By adding the cluster, the cluster GUI will check if the objects exist and
|
||
|
|
re-create them if they don't already exist. See <a href="#rzaigfaq__addexistingcluster">How
|
||
|
|
do I add an existing cluster so I can view and manage it through iSeries Navigator?</a> for
|
||
|
|
details on adding the existing cluster.</p>
|
||
|
|
<p><a href="#rzaigfaq__questions">Back
|
||
|
|
to questions</a></p>
|
||
|
|
<p id="rzaigfaq__browse"><a name="rzaigfaq__browse"><!-- --></a><strong>I'm using the "Browse" button in
|
||
|
|
the wizards for the nodes to browse for IP addresses. Why aren't all of the
|
||
|
|
TCP/IP addresses that I expect showing up in the browse window?</strong></p>
|
||
|
|
<p>The
|
||
|
|
list is only a candidate list of possible IP addresses. You are not restricted
|
||
|
|
to the list of possible addresses shown in the window. You can enter any cluster
|
||
|
|
interface address you want. Be aware, however, that you will receive errors
|
||
|
|
later if iSeries Navigator
|
||
|
|
can't connect using the IP address you specify as the primary IP address. iSeries Navigator
|
||
|
|
uses the primary IP address to connect to the nodes in the cluster.</p>
|
||
|
|
<p><a href="#rzaigfaq__questions">Back to questions</a></p>
|
||
|
|
<p id="rzaigfaq__noswitchablesoftware"><a name="rzaigfaq__noswitchablesoftware"><!-- --></a><strong>I
|
||
|
|
was using the "New Cluster" wizard and I got a panel titled: "New Cluster
|
||
|
|
- No Switchable Software Found". Is this bad?</strong></p>
|
||
|
|
<p>No, this is not bad
|
||
|
|
and it is not an error. It means exactly what it says; the iSeries Navigator
|
||
|
|
interface cannot find any switchable software that can be automatically installed
|
||
|
|
using the wizard. iSeries Navigator requires that the any auto-installable
|
||
|
|
switchable software conform to the <a href="rzaigapplicationsclusterproven.htm">i5/OS™ architecture
|
||
|
|
for cluster-enabled applications</a>. Additionally, iSeries Navigator only supports a subset
|
||
|
|
of this architecture, not all of it.</p>
|
||
|
|
<p><a href="#rzaigfaq__questions">Back
|
||
|
|
to questions</a></p>
|
||
|
|
<p id="rzaigfaq__notcommunicating"><a name="rzaigfaq__notcommunicating"><!-- --></a><strong>One of my nodes has a status
|
||
|
|
of "Not communicating". How do I correct this?</strong></p>
|
||
|
|
<p>A cluster partition
|
||
|
|
happens if you lose contact between one or more nodes in the cluster and a
|
||
|
|
failure of the lost nodes cannot be confirmed. See <a href="rzaigtroubleshootpartitionerrors.htm">Partition
|
||
|
|
errors</a> for more information.</p>
|
||
|
|
<p>Sometimes a partitioned condition
|
||
|
|
is reported when there really was a node outage. This can occur when cluster
|
||
|
|
resource services loses communications with one or more nodes, but cannot
|
||
|
|
detect if the nodes are still operational. When this condition occurs, a simple
|
||
|
|
mechanism exists for you to indicate that the node has failed. See <a href="rzaigtroubleshootchangepartitionednodes.htm">Change
|
||
|
|
partitioned nodes to failed</a> for details.</p>
|
||
|
|
<p><a href="#rzaigfaq__questions">Back
|
||
|
|
to questions</a></p>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<div>
|
||
|
|
<div class="familylinks">
|
||
|
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaigtroubleshoot.htm" title="Find error recovery solutions for problems that are specific to clusters.">Troubleshoot clusters</a></div>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
</body>
|
||
|
|
</html>
|