84 lines
5.4 KiB
HTML
84 lines
5.4 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 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="i5/OS restricted state" />
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<meta name="abstract" content="At times, it is necessary to place the operating system in restricted state. This is a concept unique to the i5/OS operating system and must only be performed when necessary. Learn about restricted state and when it needs to be performed." />
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<meta name="description" content="At times, it is necessary to place the operating system in restricted state. This is a concept unique to the i5/OS operating system and must only be performed when necessary. Learn about restricted state and when it needs to be performed." />
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<meta name="DC.Relation" scheme="URI" content="rzal2reference.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="rzal2restrictedstate" />
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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>i5/OS restricted
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state</title>
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</head>
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<body id="rzal2restrictedstate"><a name="rzal2restrictedstate"><!-- --></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"><span class="keyword">i5/OS</span> restricted
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state</h1>
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<div><p>At times, it is necessary to place the operating system in restricted
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state. This is a concept unique to the <span class="keyword">i5/OS™</span> operating
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system and must only be performed when necessary. Learn about restricted state
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and when it needs to be performed.</p>
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<p>Restricted state is a condition that occurs when all subsystems are ended,
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either manually or automatically by the system. When the operating system
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is in restricted state, most jobs cannot be active and users cannot connect
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to the server. You need to ensure that information is saved and that other
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servers, such as a Windows<sup>®</sup> server, are properly powered down before
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putting the operating system in restricted state. If not, there is a high
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risk that you will lose data.</p>
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<p>The following examples show the most common tasks that require or highly
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recommend restricted state status:</p>
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<dl><dt class="dlterm">Performing a full system backup</dt>
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<dd>When a full system backup is performed, the operating system is automatically
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placed in restricted state. Restricted status is required because the server
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requires sole access to everything it is backing up.</dd>
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<dt class="dlterm">Saving multiple items</dt>
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<dd>It is recommended that you put the operating system in a restricted state
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when backing up multiple items such as libraries, documents, directories,
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and storage. As previously stated, the system requires sole access to each
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object it is backing up. If the system is not in restricted state and someone
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is using a library when the system tries to back it up, the save operation
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will not complete successfully.</dd>
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<dt class="dlterm">Software installation and upgrade</dt>
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<dd>At various points during a software installation or upgrade, the operating
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system is required to be in a restricted state. During these procedures, you
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are given instructions on how to do this.</dd>
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</dl>
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<p>There are many more situations where certain tasks require that you perform
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this operation. The individual tasks will include specific requirements and
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instructions. When required, you can place the operating system in restricted
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state by entering the following command at a command line, type <samp class="codeph">ENDSBS
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SBS(*ALL) OPTION(*CNTRLD) DELAY(600)</samp> and press Enter.</p>
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<div class="note"><span class="notetitle">Notes:</span> <ul><li>For the Delay parameter, specify a number of seconds that
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allows your server time to bring most jobs to a normal end. On a large, busy
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server, you might need a longer delay. For more information, use the online
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command help.</li>
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<li>The End System command (ENDSYS) will also put the system into restricted
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state.</li>
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</ul>
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</div>
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<p>The server sends messages to the QSYSOPR message queue. These messages
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indicate that the subsystems ended, and the server is in a restricted state.</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="rzal2reference.htm" title="Learn about the essential components of the iSeries server, including the basics of work management, how to interact with the operating system, and system maintenance.">i5/OS concepts</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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