160 lines
14 KiB
HTML
160 lines
14 KiB
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta name="DC.Title" content="Manage clusters" />
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<meta name="abstract" content="This topic contains information that covers some of the tasks that involve managing your clusters." />
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<meta name="description" content="This topic contains information that covers some of the tasks that involve managing your clusters." />
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<meta name="DC.Relation" scheme="URI" content="rzaigicclust.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaigconfigaddnode.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaigmanageadjustclusterversion.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaigmanageclusterperformance.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaigmanageendclusterjob.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaigmanagemaintainuserprofiles1.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaigconfigbackupandrecovery.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaigmanagesaveclusterconfig.htm" />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Manage clusters</title>
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</head>
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<body id="rzaigmanage"><a name="rzaigmanage"><!-- --></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">Manage clusters</h1>
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<div><p>This topic contains information that covers some of the tasks that
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involve managing your clusters. </p>
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<p>If you have not considered the type of interface you are going to use to
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manage your clusters, see <a href="rzaigplansolutions.htm">Solutions for managing clusters</a> before going any further.</p>
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<p>Some of the changes that you can make to the cluster once you have configured
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it include the following:</p>
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<div class="section"><h4 class="sectiontitle">Cluster tasks</h4><ul><li>Add a node to a cluster</li>
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<li>Remove nodes from a cluster</li>
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<li>Start a cluster node</li>
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<li>End a cluster node</li>
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<li>Adjust the cluster version of a cluster to the latest level</li>
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<li>Delete a cluster</li>
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<li><img src="./delta.gif" alt="Start of change" />Change cluster node<img src="./deltaend.gif" alt="End of change" /></li>
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</ul>
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</div>
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<div class="section"><h4 class="sectiontitle">Cluster resource group tasks</h4><ul><li>Create new cluster resource groups</li>
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<li>Delete existing cluster resource groups</li>
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<li>Start a cluster resource group</li>
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<li><img src="./delta.gif" alt="Start of change" />Add a node to a cluster resource group <img src="./deltaend.gif" alt="End of change" /></li>
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<li><img src="./delta.gif" alt="Start of change" />Remove a node from a cluster resource group <img src="./deltaend.gif" alt="End of change" /></li>
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<li>End a cluster resource group</li>
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<li>Change the recovery domain for a cluster resource group</li>
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<li>Perform a switchover</li>
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<li>Add a node to a device domain</li>
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<li>Remove a node from a device domain</li>
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</ul>
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<p>This topic will also help you to save your cluster configurations.
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You may want to read about how cluster resource services jobs are structured
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and how cluster APIs use user queues. Read about the correct way to end cluster
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jobs and how to monitor cluster status. You also learn how the reliable message
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function and heartbeat monitoring keep you updated on the status of your cluster.</p>
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</div>
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<div class="section"><img src="./delta.gif" alt="Start of change" /><h4 class="sectiontitle">Cluster administrative domain tasks</h4><ul><li>Create a cluster administrative domain</li>
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<li>Add monitored resources</li>
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<li><img src="./delta.gif" alt="Start of change" />Delete cluster administrative domain<img src="./deltaend.gif" alt="End of change" /></li>
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</ul>
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<img src="./deltaend.gif" alt="End of change" /></div>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="rzaigconfigaddnode.htm">Add a node to a cluster</a></strong><br />
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You can add a node to a cluster using iSeries™ Navigator or commands.</li>
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<li class="ulchildlink"><strong><a href="rzaigmanagestartnode.htm">Start a cluster node</a></strong><br />
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Starting a cluster node starts cluster resource services on a node in the cluster. Beginning with cluster version 3, a node can start itself and will be able to rejoin the current active cluster, provided it can find an active node in the cluster.</li>
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<li class="ulchildlink"><strong><a href="rzaigmanageendnode.htm">End a cluster node</a></strong><br />
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Stopping or ending a node stops cluster resource services on that node.</li>
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<li class="ulchildlink"><strong><a href="rzaigmanageadjustclusterversion.htm">Adjust the cluster version of a cluster</a></strong><br />
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The cluster version defines the level at which all the nodes in the cluster are actively communicating with each other.</li>
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<li class="ulchildlink"><strong><a href="rzaigmanagedeletecluster.htm">Delete a cluster</a></strong><br />
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When you delete a cluster, cluster resource services will be ended on all active cluster nodes and they will be removed from the cluster.</li>
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<li class="ulchildlink"><strong><a href="rzaigcreatepeercrg.htm">Create a CRG</a></strong><br />
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You can create several types of CRGs: application, data, device and peer CRGs.</li>
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<li class="ulchildlink"><strong><a href="rzaigstartpeercrg.htm">Start a CRG</a></strong><br />
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You can start several types of CRGs: application, data, device and peer CRGs.</li>
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<li class="ulchildlink"><strong><a href="rzaigmanagechangesrolesrecoverydomain.htm">Change the recovery domain for a cluster resource group</a></strong><br />
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You can change the roles of nodes in a recovery domain for a cluster resource group, as well as add or remove nodes from a recovery domain. For a device cluster resource group, you can also change site name and data port IP addresses for a node in the recovery domain.</li>
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<li class="ulchildlink"><strong><a href="rzaigmanageperformswitchover.htm">Perform a switchover</a></strong><br />
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Performing a manual switchover causes the current primary node to switch over to the backup node, as defined in the cluster resource group's recovery domain.</li>
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<li class="ulchildlink"><strong><a href="rzaigmanageaddnodedevicedomain.htm">Add a node to a device domain</a></strong><br />
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A device domain is a subset of nodes in a cluster that share device resources.</li>
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<li class="ulchildlink"><strong><a href="rzaigmanageremovenodedevicedomain.htm">Remove a node from a device domain</a></strong><br />
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A device domain is a subset of nodes in a cluster that share device resources.</li>
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<li class="ulchildlink"><strong><a href="rzaigpowerdownsys.htm">How a system event affects a cluster</a></strong><br />
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<span>Certain commands that end system functions, such as <span class="cmdname">Power
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Down System (PWRDWNSYS)</span>, <span class="cmdname">End System (ENDSYS)</span>,
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and <span class="cmdname">End Subsystem (ENDSBS)</span> commands may end a cluster abruptly,
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causing a cluster partition to occur.</span></li>
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<li class="ulchildlink"><img src="./delta.gif" alt="Start of change" /><strong><a href="rzaigcreateadmindomain.htm">Create a cluster administrative domain</a></strong><img src="./deltaend.gif" alt="End of change" /><br />
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A cluster administrative domain can be created within iSeries™ Navigator
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or with the Create Cluster Administrative Domain (CRTADMDMN) command. </li>
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<li class="ulchildlink"><img src="./delta.gif" alt="Start of change" /><strong><a href="rzaigaddmonentries.htm">Add monitored resource entries</a></strong><img src="./deltaend.gif" alt="End of change" /><br />
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<span><img src="./delta.gif" alt="Start of change" />You can add a monitored resource entry to a
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cluster administrative domain that represents a resource that is shared among
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nodes. <img src="./deltaend.gif" alt="End of change" /></span></li>
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<li class="ulchildlink"><img src="./delta.gif" alt="Start of change" /><strong><a href="rzaigmonitorcluadmdmn.htm">Monitor a cluster administrative domain</a></strong><img src="./deltaend.gif" alt="End of change" /><br />
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Once a cluster administrative domain is created and the appropriate monitored resource entries are added, the cluster administrator should monitor the activity within the administrative domain to insure that the monitored resources remain consistent.</li>
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<li class="ulchildlink"><strong><a href="rzaigmanagemonitor.htm">Monitor cluster status</a></strong><br />
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Taking appropriate actions when necessary, the cluster resource services performs basic monitoring of a cluster and its components using the reliable message function and heartbeat monitoring.</li>
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<li class="ulchildlink"><strong><a href="rzaigmanageclusterperformance.htm">Cluster performance</a></strong><br />
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When changes are made to a cluster, the overhead necessary to manage the cluster can be affected.</li>
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<li class="ulchildlink"><strong><a href="rzaigmanageendclusterjob.htm">End cluster jobs</a></strong><br />
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Never try to end a cluster job directly.</li>
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<li class="ulchildlink"><img src="./delta.gif" alt="Start of change" /><strong><a href="rzaigrmc.htm">Resource Monitoring and Control (RMC)</a></strong><img src="./deltaend.gif" alt="End of change" /><br />
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Resource Monitoring and Control (RMC) is a generalized framework for managing, monitoring, and manipulating resources such as physical or logical system entities.</li>
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<li class="ulchildlink"><strong><a href="rzaigmanagejobstructure.htm">Job structure and user queues</a></strong><br />
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When managing cluster, you need to know about job structures and user queues.</li>
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<li class="ulchildlink"><strong><a href="rzaigmanagemaintainuserprofiles1.htm">Maintain user profiles on all nodes</a></strong><br />
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<span><img src="./delta.gif" alt="Start of change" />You can use two mechanisms for maintaining user
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profiles on all nodes within a cluster.<img src="./deltaend.gif" alt="End of change" /></span></li>
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<li class="ulchildlink"><strong><a href="rzaigconfigbackupandrecovery.htm">Backup and recovery of clusters</a></strong><br />
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If you use clustering on your systems, it is still important that you create a backup and recovery strategy to protect your data.</li>
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<li class="ulchildlink"><strong><a href="rzaigmanagesaveclusterconfig.htm">Save cluster configurations</a></strong><br />
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You can use commands to save your cluster resource group objects.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaigicclust.htm" title="Clusters let you efficiently group your iSeries servers together to set up an environment that provides availability that approaches 100 percent for your critical applications, devices, and data.">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="rzaigconceptsreliablemessagefunction.htm" title="The reliable message function of cluster resource services keeps track of each node in a cluster and ensures that all nodes have consistent information about the state of cluster resources.">Reliable message function</a></div>
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<div><a href="rzaigconceptsheartbeatmonitor.htm" title="Heartbeat monitoring is a cluster resource services function that ensures that each node is active by sending a signal from every node in the cluster to every other node in the cluster to convey that they are still active.">Heartbeat monitoring</a></div>
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</div>
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</div>
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</body>
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</html>
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