I guess I am one of the last few still on OES2/SLES10sp1. I would like to know is there some consensus on the best methods to upgrade to the current OES2sp2/SLES10sp3?

My setup is a 2 node cluster, with NSS volumes on a IBM SAN.

Is the best sequence:
1. Upgrade to SLES10sp3, reboot, don't patch
2. Install OES2sp2 as ADDON after SLES is up and running
3. Patch everything?