I am planning my update to SP3 on a two member DAG. Documentation states that a database updated to SP3 cannot reside on a non-SP3 Exchange server from that point on. If I only have 2 members in my DAG and I move all databases to member #1 and then update member #2 to SP3, won't the replicated copy be updated to SP3 as well and be running on a non-SP3 server? I will need to switch the copies over to member #2 in order to update my other DAG member. Will this be an issue? I am trying to lay out my plan for the update but that is where I am stuck if the SP3 database cannot be on a non-SP3 server. My only thought is that I will have to kill all replicas and re-seed them after the DAG members have been updated. This just can’t be the case. I cannot find this info anywhere and I may be thinking into it too much. Any assistance with this process will be helpful.
Thanks