upgrading from 10.2.0 to 10.2.4 with HA, any comments?
Hi,
We're looking at upgrading some LTM HA pairs from 10.2.0 to 10.2.4 and have been advised to follow SOL11215, but for a mior version upgrade, this seems inappropriate. Our, still slightly overkill, approach would go something like this:
1) Ensure upgrade target is in standby and has preference set as such
2) Disable all data interfaces on the standby box on the switch
3) Relicense standby box
4) Reboot for fun
5) Perform upgrade
6) Ensure HA is reestablished between pair
7) Renable data interfaces
8) Fail over pair (proves 10.2.0 to 10.2.4 failover)
9) Fail back pair (proves 10.2.4 to 10.2.0 failover)
10) Fail over pair again
11) Change HA preferences to make primary box prefer Standby
12) Repeat steps 1 - 8 on other box
13) Revert HA preference to standby on secondary box
Now we've had basic assurances that the two versions ARE HA compatible, but I'm after any comments on any perceived risks of our zero downtime (and VASTLY simpler) approach.
Thanks