As ever, it really depends on the types of data you are backing up and
performance of the source disks.

That said, I've seen excellent performance from both HP-UX and NetApp
to Ultrium-1 drives. With "helpful" Oracle data, we could stream 3 Ultrium
drives for parallel NDMP backups from an F880 at an aggregate of  85MB/s 
over a single 1Gb fibre. And we got up to 700GB on a nominal 100GB tape.

OTOH, millions of small files on local SCSI disk will trickle through :-(

Does OnTAP support 3592 yet ?

hth

D
#
----- Original Message ----- 
From: <briandiven AT northwesternmutual DOT com>
To: <veritas-bu AT mailman.eng.auburn DOT edu>
Sent: Wednesday, March 03, 2004 6:29 PM
Subject: [Veritas-bu] High Capacity Cartridge Utilization


We are looking at IBM 3592 tape hardware for our NBU 4.5 MP6
environment.  The drive is marketed at 40 MB/sec (200 MB/sec burst rate)
and 900 GB/tape.  The hardware pushing this would be HP RP7410 Media
Servers over a McData 4500 tape SAN.  I'm curious how others may have
implemented high capacity tape on an application or OS level.  If I were
to use NDMP with our NetApp filers, do you think we could push the
drives (direct attached) or would it just be a capacity solution?

Any other tips or tricks to get the most out of the capacity or the
throughput capabilities?

TIA

Brian



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