56 lines
3.2 KiB
HTML
56 lines
3.2 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="Hardware considerations for saving storage" />
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<meta name="DC.Relation" scheme="URI" content="rzaiurzaiu240.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="rzaiu244" />
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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>Hardware considerations for saving storage</title>
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</head>
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<body id="rzaiu244"><a name="rzaiu244"><!-- --></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">Hardware considerations for saving storage</h1>
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<div><p>The following list explains limitations of hardware during a save storage
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procedure:</p>
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<ul><li>If the tape unit supports hardware data compression, then tape unit uses
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hardware data compression. If the tape unit does not support device data
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compression, then you may use programming data compression. Generally if the
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tape unit device operates faster than possible for data compression, the tape
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unit writes data without compression to the device.</li>
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<li>The server only uses one tape unit.</li>
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<li>The save storage process does not start unless all of the configured disk
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units are operating.</li>
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<li>The server cannot use some tape units as an alternate IPL device. In these
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cases, you cannot use these tape units to restore the Licensed Internal Code
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and the Licensed Internal Code PTFs from the save storage tape.</li>
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<li>The disk configuration of the restoring server must be the same as the
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disk configuration of the saving server. The disk types and models must be
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the same or equivalent with some additional devices. Serial numbers and physical
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addresses do not have to be the same. All disk units that were saved are required
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for the restore operation.</li>
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<li><img src="./delta.gif" alt="Start of change" />A virtual tape device cannot be used.<img src="./deltaend.gif" alt="End of change" /></li>
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</ul>
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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="rzaiurzaiu240.htm">Save storage (Licensed Internal Code data and disk unit data)</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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