if you need to update the FQDN of each node ... it is pretty easy to do a rolling replacement.
The following assumes you have an extra IP/Hostname to use in the mean time.
Pre-Requisites
- have the vCD installer of the correct version stored somewhere
- have a copy of responses.properties stored with it
New Cell
1. deploy a new OS that will be your rotation cell. it has the same requirements of all your other cells for access
2. Install the vCD application using the responses.properties, configure it, and mount the transfer folder
3. start it up and make sure it works
4. if you use a load balancer, then include this new cell in the application pool
Remove the 'Old' Cell which is to be renamed
1. use the cell-management-tool to quiesce and shut down the cell
2. save any files you need from this node to the transfer folder (Certs/responses.properties/etc)
3. Power off the node
4. Follow the new cell process to make a permanent replacement for this cell.
In theory this should keep vCD up and running while doing the rolling replacement. I assume the rename is on the cells themselves.
When it comes to a "name", there is also the "Installation Name" aka System Name ... this can't be changed. There is also the front end URL(s). All you would do is update the load balancer and public addresses ... the cells don't need to be modified for this to happen.
