Should have mentioned: we upgraded to AIX 6.1 TL 7.1 at the same time as the upgrade to TSM server 6.2.3.1. We upgraded to AIX 6.1 TL 7.0 on Jan 12th, and of eleven database backups before adding the 7.1 patches, two were exceptionally long - unprecedentedly long at that time, between 5 and 6 hours. We're up to one long database backup out of the last six now, since resetting REORGDURATION and making sure DB backup is not during the reorg window. - Margaret
-----Original Message----- From: ADSM: Dist Stor Manager [mailto:[email protected]] On Behalf Of Lamb, Charles P. Sent: Thursday, March 01, 2012 7:52 AM To: [email protected] Subject: [ADSM-L] Slow TSM DB Backup Hi......... We are experiencing slow TSM DB backup process on both of our TSM systems using AIX V6.1.7.x, TSM V6.2.3.100, Atape v12.4.1.0. The issues began immediately after we upgraded from AIX v5.3.12.3 to AIX v6.1.7.x. We have created a performance PMR#53387,379,000 with TSM support. With 100GB data in a DB2 database, we are seeing 30 to 60sec waits between .1/.2GB database transfers to IBM LTO4 tape drives via TSM q se screen. It is taking a very long time to complete a TSM DB backup. Before the AIX upgrade, the full DB backup took about 10 minutes; now we are seeing backups of hours in length. Anybody having these types of issues??
