We have a mammoth task every quarter to patch all our Unix servers, and every month if the servers are in DMZ. With time we have formulated a couple of steps that makes life easier during patching of Sun servers. 1. We apply the same patch cluster on every Sun server for a particular quarter, no matter when we patch the server during a particular quarter . 2. Once the patch is downloaded at the centralized location, it is distributed to every server on the / directory. This may sound a little off track as the patch cluster consumes a good 1GB of space and the patching process might fail if we do not have sufficient disk space on our / and /var file system, but we had faced some NFS issues before where we had a lot of trouble bringing up the system after the nfs server crash in middle of the patching process. 3. We inform the database team before hand (1 week) about the patch cluster release and also share with the them release notes, for them to identify any issues with the database a...
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