I am building an Exchange 2010 environment and am trying to determine the amount of storage that will be required for the 2 Mailbox servers. Here are the specs:
2000 user mailboxes (per mailbox)
2gb storage per mailbox
2 physical mailbox servers in DAG
There will be copies of the other server databases on the mailboxes for failover, so even if say each mailbox has a "healthy" copy of the other mailbox's db that still comes to 8+ terabytes with my math (2000 x 2gb = 4000gb ...+4000bg copy from other server) Now of course the OS, Exchange, Log files..etc will take up space, but Microsoft's calculator after plugging into came up with this:
16+ terabytes seems a bit high! Please correct me if I am wrong. How much storage is actually necessary per 2000 user server?