Hi, before seriously looking into your HW-configuration and disk layout you should rule out any paging space issues and lack of I/O-tuning. Check paging space activity with "vmstat" or "nmon". Consistant activity to and from paging space during dbbackup/expiration indicates you have a memory/tuning problem and will drastically reduce performance.
Are you using files or raw volumes for your db, log and diskpools? Using files increases the need for proper tuning. Your other server performed OK? You should check if the OS-tuning is the same on the new server. These are set in the file /etc/tunables/nextboot. Best of luck, Hans C. Riksheim -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Gill, Geoffrey L. Sent: Friday, August 18, 2006 5:45 AM To: ADSM-L@VM.MARIST.EDU Subject: poor performance Although I have an open issue with TSM and AIX support on poor performance I was wondering if anyone might want to chime in on this subject. This are taking way too long on a 4 processor system that took 1/3 the time on my 2 processor box. Db backups are 5+ hours on a 120gb db that is 35% used. Expiration is taking forever, backups are still running in the AM when I get in. Any thoughts from anyone? TSM 5.3.3.0 on AIX 5.3 Thanks, Geoff Gill TSM Administrator PeopleSoft Sr. Systems Administrator SAIC M/S-G1b (858)826-4062 Email: <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED]
