Veritas Backup - Disk To Disk To Tape - Duplicate slow
Posted on 2006-05-01
Im using Veritas 10
I have recently upgraded our backup solution:
I have moved from an Dell Powervault 110T LTO2 tape drive (of which our backup jobs were taking around 19hrs to complete across 2 tapes)
To a D2D2T solution involving a new server (Dell Poweredge 2850 2 x Xeon 3.2Ghz 2GB RAM) with a 2TB Storage array (Powervault 220S) And Tape drive (As above).
I backup from 6 other servers to this one, Currently it take 14hrs to backup to disk (it was taking 20+ before i removed the mailbox brick level backup) Then the duplicate job to backup to take takes 20 hours. This causes the next nights disk backup to overwrite files that the tape duplicate is trying to read.
My question is how can i improved the speed of my tape duplicate job, im reading the disk data from a local disk, yet the tape job is taking longer than my previous solution (where i was reading from the 6 other servers to tape).
Is this a failing of the duplicate tape functionality? is this normal?
Its currently running at 420MB/Min