We have seen 60MB/sec into a 3590.  It is not easy, because disk is SO 
SLOW (even stripe sets) when compared to tape with high compression ratios 
(4 to 1).  Our test was DB2 in  a Winterhawk II node in an SP using highly 
optimized Shark disk over fibre.  The tape drive was on another Winterhawk 
II node connected via SP switch.  All disk and tape was fibre.

Orville L. Lantto
Datatrend Technologies, Inc.
121 Cheshire Lane #700
Minnetonka, MN 55305
Email: orville.lantto AT dtrend DOT com
V: 952-931-1203
F: 952-931-1293
C: 612-770-9166




"Dearman, Richard" <rdearm1 AT UIC DOT EDU>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
01/28/02 10:51 AM
Please respond to "ADSM: Dist Stor Manager"

 
        To:     ADSM-L AT VM.MARIST DOT EDU
        cc: 
        Subject:        Re: FC/ SCSI


I have tested this scenario moving to scsi connected 3590e's and fc
connected 3590e's.  Using scsi to got about 20Mb/s and fc about 25Mb/s. 
I'm
using hardware compressions.  I haven't been able to get the high levels 
of
throughput the IBM claims you can get from moving to fc. Although I 
haven't
tried testing using the move data command yet.  My test were coming from 
my
disk pool to tape.