The default timeout for failover of a UCS fabric Interconnect is 5 seconds. Want to change that?
Check this out.
If you fail over the primary fabric interconnect (which UCS manager will be running on) you’ll be logged out of UCS manager. No worry, just wait 5 seconds and log back in. You’ll be up on the primary.
When you fail over both of them to test, make sure your HA is back up and running before failing one of them over. Just log in via SSH:
connect local-mgmt
show cluster stat
A: UP, PRIMARYB: UP, SUBORDINATE
HA READY
This will tell you that the cluster is ready. At this point you should be able to unplug one of the Fabric Interconnects to test that failover works.
When they come back on line, you may want to change who the primary Fabric Interconnect is. To do this, once again, SSH into the fabric interconnect:
connect local-mgmt
cluster lead a
Once, we didn’t let the HA get ready and we had to run cluster force primary to make sure the subordinate (who hadn’t been synced yet) become the primary.