Hi Support,
We have 3-tier CA servers (total 4 CA server) need to migrate OS from 2008/2012 to 2019. To migrate the CA, we need to backup the CA DB, uninstall old server, install new server and restore the CA DB.
The question is can we migrate the CA server one by one? If yes, any sequence of root and subordinate CA?
Or we should migrate all CA servers at the same time?
Thanks
Chong