Hi All,
This is my first time working with an ASA cluster (master/slave) and I need to upgrade FXOS, and the ASA code. These are non FTD clustered 4110s running logical ASA 5525x. From the Cisco white pages it looks a little convoluted and pretty much all my searches bring up HA pair upgrade procedures. I just tried upgrading a master/slave unit through FCM and while it looked like the master was still active in FCM the logical ASA was unreachable via ssh when I disabled the logical ASA on the secondary unit. I was hoping someone could shed some light on the upgrade procedure and if it should be done via CLI or through FCM? I found instructions for both but at this point just a little hesitant on upgrading them and bringing the cluster back down.
Thank you
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