We are going to take down our Primary db for maintenance,so users will work on Standby. I have already tested failover which was successful.As i understood correctly, In your maintenance of migration of SAN/RAM, users will accessible on new primary after performing failover on standby database.
Now the situation is that we are going to increase our SAN storage & Ram in Primary db.
if for instance my SAN crashes than What I will do to rebuild the Primary. I will be doing the following things
1. I am taking full backup from RMAN including Archivelog
2. Before shutdown of OS I will take cold backup also (db is down).
3. Datapump dump
So How I will resync my primary db with standby, Will RMAN ROLLFORWARD work after restoring cold backup for me in Primary db from standby db?