Not sure what is meant by "upgrading is only possible when you are running FreePBX 13.
I am running FreePBX 12, but would like to upgrade to 13.
I assume this should be: "upgrading is only possible when you are running FreePBX 12".
I have a few questions:
When I have upgraded master node freepbx-a, the wiki says: "at this point you can now take the cluster out of maintenance mode."
Should I not leave it in maintenance mode to proceed with upgrading on freepbx-b, or do I set it back to non-maintenance mode, then switch to freepbx-b and set the cluster to maintenance mode from there?
I don't understand why it would be beneficial to move out of maintenance mode before the standby node is upgraded too. The wiki looks like the cluster is not in maintenance mode when the standby node is upgraded.
Next questions:
My master node is upgraded, my cluster is in maintenance mode. When I move over to the standby node, do I need to put the master into standby as well?
So freepbx-b is left in standby mode while being upgraded?