Hello, we are upgrading our Exchange environment and I have a question about creating the new DB on the new servers. We are creating 3 CAS/HUB VM servers along with 3 MBX VM servers for high availability. I am new to DB design and the like. I am have the design for all the VMs figured out with the exception of storage from the SAN for the DB. I have a general idea of how much space we need, but as I stated above, I've never actually created a new DB.
Can I just add the space (spanning 3 virtual disks from the SAN) and let the MBX server role do the rest during the move? Does the MBX create the DB while moving the mailboxes? I'd like to have this planned down to the last step before I begin. This is a large mailbox move (6200 users @ approx. 1.2 TB total storage).