Here is what I have.
My Exchange server is Win2000 SP4 with Exchange 2000 latest SP.
Compaq ML370, dual processors, 500MB RAM.
Compaq RAID5, Acceleration turned on.
Tape drive is a Cybernetics Library (IBM Ultrium LTO-2) connected via iSCSI.
Veritas Backup Exec 9.1 with latest patches.
Hardware compression if available, otherwise none.
When I do a backup, I get close to 400MB/Min. But as soon as it does a verify, It goes down to 32MB/Min.
I am testing a restore right now and it is restoring at 32GB/Min.
Do these numbers sound right?