Running Exchange in a HA virtual environment. Two Host OS boxes, each box has a Hyper-V instance of Hub, CAS and Mailbox. Mailbox databases are setup on a DAG on a separate SAN device. BackupExec 2010 R3 (with all the required agents) works with Hub and CAS just fine, but fails for the Mailbox VHD. (I have checked the option NOT to shutdown the VHD, as I have four mailbox databases in the DAG, and two are active via each mailbox server for balancing load.) Symantec says I must manually shutdown the mailbox VHD for backup. I think there are other options out there. Are there?