Originally posted by: alethad
I did the same thing about a month ago but I was only upgrading HACMP. I had already done my OS previously which I would recommend to you in the future if possible. Did you Verify & Sync the cluster before you started?
The answer to your question is no. It's too late. You've already migrated HA on one of the nodes. The proper method to do a snapshot migration is to upgrade both nodes then perform the restore of the snapshot. You need both nodes on the same level of HA to restore a snapshot properly. Otherwise you may wind up with an unstable cluster.
In my case and yours is you will have to perform the upgrade on both nodes first. You don't get a choice now unless you back level the upgraded node but you'll spend less time getting the second node upgraded. I did mine with HA stopped on both nodes and users off. I didn't do a rolling migration. You'll have to determine what method fits your situation.
I did my HA migration in steps(version by version). I did not lose my HA configuration along the way. I got some guidance from IBM support. Hopefully you at least made a mksysb before you started any of it.
Once you get both nodes upgraded verify & synchronize them then take a new snapshot. Be sure to keep another copy of the snapshot in /tmp or somewhere else other that the default snapshots directory.
You may want to run it by IBM support first but that's what they helped me do.
Hope that helps. I'll let someone correct me if I'm wrong but that was what I had to do in my situation.
Good luck.