Hi,
I need to rename my VCSA. Initially I setup the appliance using the IP and later established the the FQDN and now I want to change it to the FQDN. I was told that backing up the database and restoring it to a new appliance should work but I dont think that took into account my external PSC and that the VCSA is running in linked mode. The appliance is also connected to operation manager at the moment.
have you thought about just making a new VCSA with the new name and pointing the PSC to that new VCSA?
here is a couple of different resources
DVS restore
Database backup and restore
Backup vCSA vPostgres database, roles and permissions – gansercom