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WebSphere Application Server - IBM Redbooks

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► Different versions of a feature or plug-in are always given different version<br />

identifiers, thereby ensuring that the multiple versions of the same feature or<br />

plug-in can co-exist on disk.<br />

► This means that installing or updating features and plug-ins requires adding<br />

more files, but never requires deleting or overwriting existing files.<br />

► Once the files are installed on the local computer, the new feature and plug-in<br />

versions are available to be configured.<br />

► The same installed base of files is therefore capable of supporting many<br />

different configurations simultaneously. Installing and upgrading an existing<br />

product are reduced to formulating a configuration incrementally newer than<br />

the current one.<br />

► Important configurations can be saved and restored to active service in the<br />

event of an unsuccessful upgrade.<br />

You can launch the update manager by selecting Help -> Software Updates -><br />

Update Manager from the menu bar. This opens the Install/Update Perspective.<br />

Note that you can also open the perspective Install/Update directly.<br />

Figure B-1 Update Manager<br />

598 <strong>IBM</strong> <strong>WebSphere</strong> <strong>Application</strong> <strong>Server</strong> - Express V5.0.2 Developer Handbook

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