I need to upgrade an inherited environment SQL 2014 RTM to SP2. It is a 2 node active/active. Clustered resources are SQL (with db, repl and full text) and AS .
For upgrade, I am looking to failover one instance, so that one node has both instances. Then upgrade the passive node, reboot it, failover both clusters/instances to the upgraded node then upgrade the second node and reboot. Are there any specifics to an active/active cluster upgrade?
I know originally one node was used to install the 2 failover clusters and second node was used for adding the node to both clusters (one after the other). Does it matter which one of the 2 nodes I will make passive first (and upgrade first)? I mean the first node on which was installed both failover clusters or the node that was added to the clusters.
Thank you,
