53 lines
3.1 KiB
HTML
53 lines
3.1 KiB
HTML
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<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" 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="dc.language" scheme="rfc1766" 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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<meta name="dc.date" scheme="iso8601" content="2005-09-13" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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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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<title>Machine pool size requirements</title>
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<link rel="stylesheet" type="text/css" href="ibmidwb.css" />
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<link rel="stylesheet" type="text/css" href="ic.css" />
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</head>
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<body>
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<a id="Top_Of_Page" name="Top_Of_Page"></a><!-- Java sync-link -->
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<script language = "Javascript" src = "../rzahg/synch.js" type="text/javascript"></script>
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<a name="rzahqmprrf"></a>
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<h3 id="rzahqmprrf">Machine pool size requirements</h3>
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<p>The machine memory pool is used for highly-shared machine and operating
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system programs. The machine memory pool provides storage for jobs the system
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must run that do not require your attention. If you set the size for these
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storage pools too small, you will impair system performance. You cannot set
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QMCHPOOL to less than 256 KB. The size for this memory pool is specified in
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the machine memory pool size system value (QMCHPOOL). No user jobs run in
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this memory pool.</p>
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<p><img src="delta.gif" alt="Start of change" />All supported IXS and IXA attached integrated server hardware
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requires a minimum 856KB of memory. For information about iSCSI attached server
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memory requirements, see <a href="http://www.ibm.com/servers/eserver/iseries/integratedxseries/iscsireadme" target="_blank">iSCSI install read me first</a>
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<img src="www.gif" alt="Link outside the Information Center." />.<img src="deltaend.gif" alt="End of change" /></p>
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<p>You can display or change the machine pool size by using the Work With
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System Status (WRKSYSSTS) command. The first storage pool on the WRKSYSSTS
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display is the machine pool.</p>
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<p>You can change the system value QPFRADJ so that the system automatically
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adjusts system pool sizes. However, because automatic performance adjustment
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can slow down a busy system, you probably want to limit its use to one of
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these times:</p>
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<ul>
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<li>The first couple days after the installation</li>
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<li>An hour or so at the time your system load changes from daytime (interactive
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emphasis) to nighttime (batch emphasis) and back</li></ul>
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<a id="Bot_Of_Page" name="Bot_Of_Page"></a>
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</body>
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</html>
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