Presumption: you have configured the appliances with all the configuration you need to do the job, also the FTW has run and appliances are ready to go.
First of all, are you planning to change the names of the gateways/cluster?
If not you're in luck, there some simple steps to do then, still take a service window to do them:
- begin with the backup member, move the cables over to the appliance (leave the HP running as is)
- reset SIC on the cluster member in the SmartConsole/Dashboard
- Get networking correct in cluster object
- R77.30: goto the topology page and do a get interface (without topology) this should replace the interface names and keep the IP's
- R80.10: Interface names are not set per member anymore.
- push policy (when moving in the same go from R77.30 to R80.10 set the version on the cluster to the new version) also untick the box in the policy install advanced options,"do not install when either of the gateways fails(or some text like that"
- now both cluster members (1 HP and 1 Appliance) are set with the proper policy, however they will not sync!
- now comes the moment to switch over to the Appliance, all you will interrupt is all running sessions.
As you still have the HP running in the background you can easily rollback and if need even reconnect the other HP.
However if all works fine, move on and do the same with the other HP.
If you need to do all this remotely, you can use switchport enable/disable methods to disconnect the HP and connect the Appliance.
If you do need to move to new names, you can still do the same however there are some other steps you need to be aware of, when you create a new cluster (same IP's all over?) you will need to use some other commands on the commandline to disable the clustering untill you are ready to switch over.
If needed I can supply a list like the one above with the additional steps.
Regards, Maarten