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 [EMAIL PROTECTED] -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED]] On Behalf Of Conko, Steven Sent: Wednesday, November 20, 2002 11:26 AM To: [EMAIL PROTECTED] 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