79 lines
5.8 KiB
HTML
79 lines
5.8 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 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="Logical partition concept: load source" />
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<meta name="abstract" content="Each logical partition must have one disk unit designated as the load source." />
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<meta name="description" content="Each logical partition must have one disk unit designated as the load source." />
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<meta name="DC.Relation" scheme="URI" content="rzaitdiskunit.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaitloadsourcelocation.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaittagged.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaitdiskunit.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaitrecworkparconf.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaitrecworknondu.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaitdiskunit.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaitremovable.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzaitiodevice.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2004, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2004, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="rzaitloadsource" />
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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>Logical partition concept: load source</title>
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</head>
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<body id="rzaitloadsource"><a name="rzaitloadsource"><!-- --></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">Logical partition concept: load source</h1>
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<div><p>Each logical partition must have one disk unit designated as the
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load source. </p>
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<p>The load source contains the Licensed Internal Code and the configuration
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data for the logical partitions. The server uses the load source to start
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the logical partition. The server always identifies this disk unit as unit
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number 1.</p>
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<p>The logical partition configuration data on the load source of the primary
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partition is the master copy. The server uses this copy to check the integrity
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of the configuration data that it maintains on the load source of each logical
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partition.</p>
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<p>Any time the load source of a logical partition is erased, the logical
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partition configuration data must be recovered. On a secondary partition,
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the server automatically rewrites the data by using the master copy from the
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primary partition. On the primary partition, you must manually recover the
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configuration data.</p>
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<p>When you move the load source for a logical partition to a different server
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or different logical partition as a nonconfigured disk unit, you need to clear
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its configuration data. This recovery action corrects configuration data problems.</p>
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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="rzaitloadsourcelocation.htm">Load source placement rules for secondary partitions</a></strong><br />
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Each logical partition requires a load source disk unit.</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="rzaitdiskunit.htm" title="Disk units store data. The server can use and reuse this data at any time. It is more permanent than memory, but you can still erase it.">Logical partition concept: disk units</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="rzaittagged.htm" title="A tagged resource is an IOP that you select because it controls a device that performs a specific function for a logical partition.">Logical partition concept: tagged resource</a></div>
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<div><a href="rzaitdiskunit.htm" title="Disk units store data. The server can use and reuse this data at any time. It is more permanent than memory, but you can still erase it.">Logical partition concept: disk units</a></div>
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<div><a href="rzaitremovable.htm" title="A removable media device reads and writes to media (tape, CD-ROM, or DVD).">Logical partition concept: alternate restart (IPL) devices and removable media device</a></div>
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<div><a href="rzaitiodevice.htm" title="The IOP attaches to the system I/O bus and one or more input/output adapters (IOAs). The IOP processes instructions from the server and works with the IOAs to control the I/O devices.">Logical partition concept: IOP</a></div>
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</div>
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<div class="reltasks"><strong>Related tasks</strong><br />
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<div><a href="rzaitrecworkparconf.htm" title="You can use this option to recover logical partition configuration data if one of your secondary partitions is running the i5/OS operating system. This procedure is part of a full server recovery.">Recover logical partition configuration data</a></div>
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<div><a href="rzaitrecworknondu.htm" title="When you move disk units among logical partitions or servers, you may need to erase any old configuration data before the server can use the logical partition again.">Clear partition configuration data from nonconfigured disk units</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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