ADSM Recovery log growing
1996-07-05 16:33:08
From: Mike Knight, ISSC Aerospace, (314)234-5096, KNIGHTM at ISSCVM
Inet: KNIGHTM AT VNET.IBM DOT COM
Subject: ADSM Recovery log growing
1. I have noticed a condition where the ADSM recovery log keeps growing
when a client backup process is waiting for access to a tape being used
by a migration process. The log's %Util goes up until either the migration
process releases the tape or the log hits 99.9% which causes the server to
perform "recovery log compression". Then the log goes back to below 1%.
2. I can recreate this regularly by backing up two large Solaris clients
from scratch. Has anybody else seen this? We have a similar, but less
well defined problem on one ADSM Version 1 server which causes the
server to hang and all sessions to fail.
3. We are running ADSM/6000 2.1.0.7 on AIX 4.1.4 with collocation on.
Backups go to disk with files over 5MB direct to tape. The recovery
log is 800MB on mirrored raw disks. TXNGROUPMAX=40, MOVEBATCHSIZE=128,
MOVESIZETHRESH=100, TXNBYYELIMIT=25600, LOGMODE=NORMAL.
Mike (not ADSM support) Knight
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