51 lines
3.3 KiB
HTML
51 lines
3.3 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 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="Resilient data" />
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<meta name="abstract" content="Resilient data is data that is replicated (copied) on more than one node in a cluster." />
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<meta name="description" content="Resilient data is data that is replicated (copied) on more than one node in a cluster." />
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<meta name="DC.Relation" scheme="URI" content="rzaigconceptsresilientresources.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaigconceptsreplication.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="rzaigconceptsresilientdata" />
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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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<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>Resilient data</title>
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</head>
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<body id="rzaigconceptsresilientdata"><a name="rzaigconceptsresilientdata"><!-- --></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">Resilient data</h1>
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<div><p><dfn class="term">Resilient data </dfn> is data that is replicated
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(copied) on more than one node in a cluster.</p>
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<p>Each node in the recovery domain contains a copy of the resilient data
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maintained through some replication mechanism. Nodes that are defined as
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backup in the recovery domain can assume the role of primary point of access
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for the resilient data. Nodes that are defined as replicates also contain
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a copy of the data, but cannot assume the role of primary. Typically, data
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copied to a replicate node is used to offload work, such as backup or read-only
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queries, from the primary node.</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="rzaigconceptsresilientresources.htm" title="Resilient resources are system resources, such as data, devices and applications, that are highly available if you have used clustering on your systems.">Resilient resources</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="rzaigconceptsreplication.htm" title="Replication makes a copy of something in real time. It means copying objects from one node in a cluster to one or more other nodes in the cluster.">Replication</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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