What throughput should I expect ?

[Ayman Altounji]

I have a DL580, with 2 x 9.1gb Ultra3 10k (mirrored) on the Integrated array controller. 7 x 36.4gb 10k Ultra3 (raid5 on a Smart 5300 controller)in an external shelf.
TL891 library with 1x35/70 DLT is attached to DL580 via Compaq Storageworks Library adapter (Dual channel Wide Ultra SCSI 3).
Software is NT 4 SP6a, Veritas BackupExec V8.5 with autoloader option. All appears to be working OK.
What sort of throughput should I be getting on backups with this setup ?
Is 290MB/Min good, very good, bad, as expected ????

[Ayman Altounji]

you get anywhere between 300 and 350MB/min....so 290 is pretty good throughput.