Re: [ADSM-L] Slow TSM DB Backup
2012-03-01 11:38:56
My TSM 6.2.3.0 DB backups on AIX have increased in elapsed time from a little
over an hour to almost four hours. I am at AIX 6.1.7.1 but I can't say for
sure that the increase in backup times corresponds to the time that I did the
AIX maintenance.
David
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Lamb, Charles P.
Sent: Thursday, March 01, 2012 10:52 AM
To: ADSM-L AT VM.MARIST DOT EDU
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??
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