Hi, I get no Answer then i had to do the Job.
The biggest probelem was that the vcenter was the same machine for the VSA cluster, and the vCenter was in the VSA cluster, then when you go in the VSA MANAGER, reconfigure the network it ask you to turn of the vCenter and i didn't have any spare ESX to move the VC on it.
The chance was that the network is flat no vLan are configured
Then I keep the configuration, i add a VMkernel on each ESX based on the new network.
Add a vNic in the vCenter
Remove all the gateway in vCenter and vMkernel ESXi
Then know the VSA didn't get any change and vCenter and ESXi are in production in the new network.
I hope to have the chance shortly to change all properly
I hope that it help !!
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Make sure you re-generate any self signed certificates within the VCVA's 5480 interface if you change names/IP addresses.
Thanks for tips, i will pay attention.
I will change only the IP, is it easy to regenerate self signed certificates ?
It sure is!
William has a great article on it. I believe most (if not all) VMware appliances with the VAMI interface have this option, not just vCenter.
Another thing to consider is you forward and reverse lookup DNS. Make sure that's up to date too.