By Juergens-Oracle on May 07, 2006
Patching a Sun Cluster 3.1 on Solaris 8 or Solaris 9 is not always straight forward. Especially if you install the Sun Cluster core patch which is equivalent to Sun Cluster 3.1 8/05 aka Update4 release.
If you install a mentioned SC core patch without to shutdown the whole cluster then patching a node is similar to rolling upgrade. It is also called "Rebooting Patch (Node) procedure". For these procedures it is a requirement to have the -11 revision of the SC core patch installed and active. Active means you need to install -11 revision of the patch and reboot the nodes. If the -11 SC core patch is not installed AND active then you will hit the bug 6210440 and your whole cluster is going down within patch installation. The issue is documented on several places but still many Sun Cluster 3.1 will get affected. Therefore never forget to read the special install instructions of these patches.
Beware if you use TLP (Traffic Light Patchmanagement) only one revision of the SC core patch is in the patchset. If the patchset include the revision -12 or higher then you should have an active -11 SC core patch befor you install the TLP patchset.
It is not necessary to look to the Solaris 10 SC core patches because Sun Cluster 3.1 8/05 is the first release which support Solaris 10. But I like to mention, it is highly recommended to use Solaris 10 1/06 aka Update1 for Sun Cluster 3.1 8/05 on Solaris 10.