75 lines
4.4 KiB
HTML
75 lines
4.4 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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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow" />
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Multiple-release clusters" />
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<meta name="abstract" content="If creating a cluster that will include nodes at multiple cluster versions, then certain steps are required when you create the cluster." />
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<meta name="description" content="If creating a cluster that will include nodes at multiple cluster versions, then certain steps are required when you create the cluster." />
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<meta name="DC.Relation" scheme="URI" content="rzaigplandesign.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaigplanclusterversions.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="rzaigplanmixedrelease" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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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>Multiple-release clusters</title>
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</head>
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<body id="rzaigplanmixedrelease"><a name="rzaigplanmixedrelease"><!-- --></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">Multiple-release clusters</h1>
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<div><p>If creating a cluster that will include nodes at multiple cluster
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versions, then certain steps are required when you create the cluster.</p>
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<p>By default, the current cluster version will be set to the potential cluster
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version of the first node added to the cluster. This approach is appropriate
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if this node is at the lowest version level to be in the cluster. However,
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if this node is at a later version level, then you will subsequently be unable
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to add nodes with a lower version level. The alternative is to use the target
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cluster version value on create cluster to set the current cluster version
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to one less than the potential cluster version of the first node added to
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the cluster.</p>
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<p>For example, consider the case where a two-node cluster is to be created.
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The nodes for this cluster are:</p>
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<div class="tablenoborder"><img src="./delta.gif" alt="Start of change" /><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><thead align="left"><tr><th valign="top" id="d0e29">Node Identifier</th>
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<th valign="top" id="d0e31">Release</th>
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<th valign="top" id="d0e33">Potential Cluster Version</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" headers="d0e29 ">Node A</td>
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<td valign="top" headers="d0e31 ">V5R3</td>
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<td valign="top" headers="d0e33 ">4</td>
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</tr>
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<tr><td valign="top" headers="d0e29 ">Node B</td>
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<td valign="top" headers="d0e31 ">V5R4</td>
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<td valign="top" headers="d0e33 ">5</td>
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</tr>
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</tbody>
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</table>
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<img src="./deltaend.gif" alt="End of change" /></div>
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<p>If the cluster is to be created from Node B, care must be taken to indicate
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that this will be a mixed release cluster. The target cluster version must
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be set to indicate that the nodes of the cluster will communicate at one less
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than the requesting node's potential node version.</p>
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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="rzaigplandesign.htm" title="Identify your needs to determine how to design your cluster.">Design your cluster</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="rzaigplanclusterversions.htm" title="A cluster version represents the level of function available on the cluster.">Cluster version</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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