55 lines
3.7 KiB
HTML
55 lines
3.7 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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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="How a system event affects a cluster" />
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<meta name="abstract" content="Certain commands that end system functions, such as Power Down System (PWRDWNSYS), End System (ENDSYS), and End Subsystem (ENDSBS) commands may end a cluster abruptly, causing a cluster partition to occur." />
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<meta name="description" content="Certain commands that end system functions, such as Power Down System (PWRDWNSYS), End System (ENDSYS), and End Subsystem (ENDSBS) commands may end a cluster abruptly, causing a cluster partition to occur." />
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<meta name="DC.Relation" scheme="URI" content="rzaigmanage.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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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>How a system event affects a cluster </title>
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</head>
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<body id="rzaigpowerdownsys"><a name="rzaigpowerdownsys"><!-- --></a>
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<img src="./delta.gif" alt="Start of change" /><!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">How a system event affects a cluster </h1>
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<div><p><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></p>
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<div class="section"><p>In V5R4, enhancements have been made to the PWRDWNSYS, ENDSYS,
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and ENDSBS commands. If clustering is active on the node when these commands
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are executed, an <a href="../apis/clcntendcn.htm">End Cluster
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Node (QcstEndClusterNode)</a> API will be issued.</p>
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<div class="p">If you want these
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commands to complete, you should use OPTION(*CNTRLD) and specify the appropriate
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delay time in the DELAY parameter. Otherwise, the End Cluster Node API may
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not have completed before control is returned to the end system function.<div class="note"><span class="notetitle">Note:</span> If
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the user specifies <span class="parmname">OPTION(*IMMED)</span>, the End Cluster Node
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(QcstEndClusterNode) API has about 30 seconds to complete before the system
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ends. This may result in a failover instead of a end cluster node.</div>
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</div>
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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>
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<img src="./deltaend.gif" alt="End of change" /></body>
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</html>
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