Enterprise server option in backup exec 2012
i want to purchase license for enterprise server option in backup exec 2012
i have SAN storage with two fabrics and a tape library with two drives
also i have HP D2D solution
i just want to use SAN sso option to backup 3 servers (file server and 2 exchange servers)
how many enterprise server option do i need to purchase?
please this is urgent as the license will end after few days and i need to renew it ASAP
thanks in advance