What sort of performance are you getting?  In Gbyte/hour.

I would expect somewhere in the 40-60 GB/hour range.

Kelly J. Lipp
STORServer, Inc.
485-B Elkton Drive
Colorado Springs, CO 80907
lipp AT storsol DOT com or kelly.lipp AT storserver DOT com
www.storsol.com or www.storserver.com
(719)531-5926
Fax: (240)539-7175


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
Joshua Bassi
Sent: Wednesday, November 20, 2002 1:26 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: tape-to-tape performance


Take a look at the movebatchsize, movesizethresh and bufpoolsize.  These
3 options have a direct corrolation for tape to tape copy processes.


--
Joshua S. Bassi
IBM Certified - AIX 4/5L, SAN, Shark
Tivoli Certified Consultant - ADSM/TSM
eServer Systems Expert -pSeries HACMP

AIX, HACMP, Storage, TSM Consultant
Cell (831) 595-3962
jbassi AT ihwy DOT com



-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Conko, Steven
Sent: Wednesday, November 20, 2002 11:26 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: tape-to-tape performance


we run a 3494 tape library with 3590 tape drives. after our backup are
finished, we run a backup stgpool to a copy pool on about 1.6TB of data.
as you can imagine, even with 8 drives this takes some time. are there
any server, device or other parameters we can tune to improve the
tape-to-tape performance?


steve