Backup Exec 2010 R3 upgrade with CASO and SSSO
We have Backup Exec 2010 R2 installed with CASO and 10 SSSO secondary servers. We want to upgrade the servers one by one starting with the primary server over a couple of weeks.
Do we need to make the servers stand-alone before upgrading the primary server or can we leave them all connected to the primary server?
What about when we upgrade the secondary servers- do they need to be upgraded as standalone servers or can they remain connected?