69 lines
5.0 KiB
HTML
69 lines
5.0 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<META http-equiv="Content-Type" content="text/html; charset=utf-8">
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<LINK rel="stylesheet" type="text/css" href="../../../rzahg/ic.css">
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<title>Backup and recovery considerations for WebSphere Application Server - Express</title>
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</head>
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<BODY>
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<!-- Java sync-link -->
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<SCRIPT LANGUAGE="Javascript" SRC="../../../rzahg/synch.js" TYPE="text/javascript"></SCRIPT>
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<h2><a name="snrmain"></a>Backup and recovery considerations for WebSphere Application Server - Express</h2>
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<p>WebSphere Application Server - Express uses many iSeries resources that you should consider adding to your backup and recovery procedures. Save and restore of WebSphere Application Server - Express resources uses the same iSeries commands used for other iSeries resources. For more detailed information on iSeries system save and restore facilities, see the following topics in the iSeries Information Center:</p>
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<ul>
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<li><a href="../../../rzaiu/rzaiuintro.htm">Backup and Recovery</a></li>
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<li><a href="../../../rzalw/rzalwoverview.htm">Availability</a></li>
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</ul>
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<p>The following areas of WebSphere Application Server - Express should be considered for backup and recovery:</p>
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<blockquote>
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<p><strong><a href="snradmin.htm">Administrative configuration</a></strong>
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<br>This topic describes the backup and recovery of the configuration for a WebSphere Application Server - Express instance.</p>
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<p><strong><a href="snrserv.htm">Servlets</a></strong>
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<br>This topic describes the backup and recovery of the collections and files used by the servlet function of WebSphere.</p>
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<p><strong><a href="snrjsp.htm">JavaServer Pages (JSP) files</a></strong>
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<br>This topic describes the backup and recovery of the resources needed to configure and run JavaServer Pages (JSP) files.</p>
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<p><strong><a href="snrsecur.htm">Security</a></strong>
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<br>This topic describes considerations for saving and restoring security configuration and data.</p>
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</blockquote>
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<p><strong>Other external resources</strong></p>
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<p>If your applications are using other resources or services that are external to WebSphere Application Server - Express remember to include those in your backup plan as well.</p>
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<p>WebSphere Application Server - Express resources can be saved while the WebSphere Application Server - Express environment is active. When backing up database data, you may have to shut down some or all services if a snapshot cannot be obtained. This would occur if there are requests which obtain locks or have open transactions against the database being saved. In a distributed environment, you may need to consider how to get a consistent backup across several systems. If the data on systems is not closely related to data on other systems, you may be able to backup each system in isolation. If you need a snapshot across systems simultaneously, you may need to stop activity on all systems while the snapshot is taken.</p>
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<p>How often you back up resources depends largely on when or how often you expect them to change. Use these categories to determine how you should fit WebSphere resources into your backup plan:</p>
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<ul>
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<li><p><strong>WebSphere Application Server - Express environment configuration</strong>
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<br>This category includes the resources that define your WebSphere Application Server - Express operating environment. After you install and configure the product, this information should change very infrequently. You might backup this information only when you change these settings, and not include these resources in regularly scheduled backups. This category includes these items:</p>
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<ul>
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<li><a href="snradmin.htm">administrative configuration</a></li>
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<li><a href="snrserv.htm">servlet configuration files and HTTP configuration</a></li>
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<li><a href="snrsecur.htm">security properties files</a></li>
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</ul><p></p></li>
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<li><p><strong>WebSphere Application Server - Express applications</strong>
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<br>This category includes the applications that you run in WebSphere Application Server - Express. You should back these up the same way you back up other applications on your system. You could back up these resources every time you add or change an application, or include these resources in a regularly scheduled backup. This category includes these items:</p>
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<ul>
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<li><a href="snradmin.htm">administrative configuration</a></li>
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<li><a href="snrserv.htm">servlet source and class files</a></li>
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<li><a href="snrjsp.htm">JSP source and generated class files</a></li>
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</ul><p></p></li>
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<li><p><strong>WebSphere Application Server - Express application data</strong>
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<br>This category includes the data stores used by your WebSphere Application Server - Express applications. Unless your applications serve only static information, these resources are usually quite dynamic. You should back these up the same way you back up other business data on your system. These resources are suited for inclusion in a regularly scheduled backup.</p></li>
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</ul>
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</body>
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</html>
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