Oracle upgrade on veritas cluster 5.1 SP1
We are planning to upgrade oracle from 10.2.0.4 to 188.8.131.52 on windows 2008 environment. We have SAP Portal Ehp1 for that uses this database.
both the SAP and oracle group are clustered with the VCS version 5.1 SP1 over 2 nodes.
Would like to know the process for upgrading the oracle in this clustered environment.
Do we need to install & upgrade only on one node or do it on both the nodes/
Kindly share relevant documentation for this purpose.