<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html lang="en-us" xml:lang="en-us"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="security" content="public" /> <meta name="Robots" content="index,follow" /> <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))' /> <meta name="DC.Type" content="concept" /> <meta name="DC.Title" content="Software upgrade or replacement" /> <meta name="abstract" content="Use this information to understand special considerations of the server and its software when you upgrade or replace a release." /> <meta name="description" content="Use this information to understand special considerations of the server and its software when you upgrade or replace a release." /> <meta name="DC.Relation" scheme="URI" content="rzahcswconcepts1.htm" /> <meta name="DC.Relation" scheme="URI" content="supportedreleasesupgrades.htm" /> <meta name="DC.Relation" scheme="URI" content="rzahcibmojects.htm" /> <meta name="DC.Relation" scheme="URI" content="rzahcswscompres.htm" /> <meta name="DC.Relation" scheme="URI" content="filesserverdeletes.htm" /> <meta name="copyright" content="(C) Copyright IBM Corporation 2004, 2006" /> <meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2004, 2006" /> <meta name="DC.Format" content="XHTML" /> <meta name="DC.Identifier" content="rzahcconsiderswreplace" /> <meta name="DC.Language" content="en-us" /> <!-- All rights reserved. Licensed Materials Property of IBM --> <!-- US Government Users Restricted Rights --> <!-- Use, duplication or disclosure restricted by --> <!-- GSA ADP Schedule Contract with IBM Corp. --> <link rel="stylesheet" type="text/css" href="./ibmdita.css" /> <link rel="stylesheet" type="text/css" href="./ic.css" /> <title>Software upgrade or replacement</title> </head> <body id="rzahcconsiderswreplace"><a name="rzahcconsiderswreplace"><!-- --></a> <!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script> <h1 class="topictitle1">Software upgrade or replacement</h1> <div><p>Use this information to understand special considerations of the server and its software when you upgrade or replace a release.</p> </div> <div> <ul class="ullinks"> <li class="ulchildlink"><strong><a href="supportedreleasesupgrades.htm">Supported releases for i5/OS (OS/400) upgrades</a></strong><br /> Upgrades to current releases require that you be at a certain level of software. This information shows the supported combinations for source and current target releases.</li> <li class="ulchildlink"><strong><a href="rzahcibmojects.htm">Installation and IBM-supplied objects</a></strong><br /> When you replace your software with the new release, by default the server keeps changes that you made to some IBM-supplied objects.</li> <li class="ulchildlink"><strong><a href="rzahcswscompres.htm">Compressed objects and storage space</a></strong><br /> All of the licensed programs and some objects of the operating system ship in a compressed form. This requires less storage space on your server. The server decompresses objects according to certain criteria, which could affect the performance of the server.</li> <li class="ulchildlink"><strong><a href="filesserverdeletes.htm">Files that the server deletes during installation</a></strong><br /> If you have created logical files over IBM-supplied physical files in QSYS, the logical files will be deleted during the installation process.</li> </ul> <div class="familylinks"> <div class="parentlink"><strong>Parent topic:</strong> <a href="rzahcswconcepts1.htm" title="You and IBM together manage the use, documentation, and transfer of i5/OS licensed programs.">Concepts for software installation</a></div> </div> </div> </body> </html>