ADSM-L

dbbackuptrigger & paging space

1999-02-11 03:02:18
Subject: dbbackuptrigger & paging space
From: Joel Fuhrman <joelf AT CAC.WASHINGTON DOT EDU>
Date: Thu, 11 Feb 1999 00:02:18 -0800
AIX 4.2.1
ADSM Server level 3.1.2.13

I have defined my dbbackuptrigger to be 50%.  The max log shows 57%.  When
the trigger was activated, it failed to reduce the log to less than 50%.  Is
this a bug?

As the backups continued, it triggered additional dbbackups. Eventually, the
activity log is flooded with these messages:
1999-02-09 03:06:40      ANR9999D logread.c(179): Attempt to read LSN
                          18717.193.3351 below trunc LSN 18768.171.991.

Finally, the system paging space filled and processes were killed by AIX
which had the effect of killing ADSM.  Has any one else seen this behavior?

ADSM is the only thing running on this system.  The paging space is normally
only 22% used.
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