On Tue, May 18, 2004 at 04:53:07PM -0500, Geoff Hardin wrote:
So, I guess what I'm really asking is 1) "What kind of speeds are you seeing?" and 2) "Am I doing something wrong?"
We're running AIT-2 and AIT-3 drives for our backups. Our F820 which has 2 AIT-2 drives direct attached gets 5-7MB/s on the tape drives. Our 3-way NDMP backups get 4-6MB/s. We have separate networks too but ours are 100Mbit (not GigE like yours).
We have an AIT-3 drive attached to a Solaris host running 3-way NDMP backups and on that one we see 5-7MBs. We should be seeing better perfomance on this one, but we have other configuration issues to sort out (all of our AIT-3 drives are getting effectively AIT-2 performance even when direct attach).
DLT drives are notorious for shoe-shining, 1-2MB/s would be expected if you're not streaming the drives.