Performance problem with dsm, V2.1, AIX 4.1.3
1995-11-30 11:45:31
Hi...
I'm a new user of ADSM so forgive any silly statements I may make. I've
just set up ADSM on a RS/6000, 590 running AIX 4.1.3 and a EXB 440 tape library.
I've set it up using 2 storage pools for backup and archive, one disk, one tape.
I have the disk pool set so that files larger than 10M are written directly to
tape. What I see is that when I fire up dsm and begin an archive, everything
goes fine until it gets to a large file. dsm asks if I want to store it to a
offline and I say yes. At this time, the tape library begins to mount the tape
and the cpu usage of the dsm goes to 100%. From now on, the performance is
terrible (300k/sec) and the cpu usage stays at 100%. What do I have
misconfigured to cause dsm to use all this cpu? Thanks.
Mike Leuthold
Atmospheric Sciences
University of Arizona
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