Hi
I'm aware of the widely recommended practice for applying SQL Server CU patches to the nodes in an AG, i.e. patch the secondary replica, fail over, patch the new secondary, then optionally fail back.
This minimizes downtime, but what if I don't care about that and would prefer to avoid failing over and back?
Could I safely apply the CUs WITHOUT performing the failover, e.g. patch the secondary, suspend data movement, patch the primary, then resume data movement?
Would that approach work? What are the potential pitfalls, apart from the increased outage time?
Thanks