ADSM-L

Strange behaviour for a reclaim.

1997-07-15 00:16:58
Subject: Strange behaviour for a reclaim.
From: Wayne Gorton <wayneg AT AU1.IBM DOT COM>
Date: Tue, 15 Jul 1997 00:16:58 -0400
Howdy All,
I was wondering if anyone has ever seem this rather strange behaviour.
I had a volume that was trying to be reclaimed & was waiting for multiple mount
points for 6000 seconds. The odd thing is that a q mo displayed nothing mounted
& yes we have 2 tape drives & many available scratch volumes all in a 3494. So
it should manage itself, no action or reply on my part. Also reclaim has been
working fine for months, until today.
I cancelled this process, since it wasn't going anywhere & issued a move data
to a disk storage pool.
After the command I monitored it & lo-and-behold it actually wanted to mount a
third tape before it got to the tape that it said it wanted to reclaim.

My theory is that this third tape had the beginning of a file that was being
reclaimed & the tape that wanted to be reclaimed had the end of it. Thus 2
input tapes & 1 output tape. We only have 2 tape drives.

Is this the case? Does this sound feasible? Or have I stumbled onto a
undocumented "feature" of ADSM?
I've seen reference to this invisible mount before that will be fixed in ptf13
(if it ever comes out....maybe they've renamed it ADSM version 3 :-) That fix
to stop/start the server. I did this & it didn't fix the problem

Role:                               Unix System Administrator
Style:                              The Thinking Man's Clown
Name:                               wayneg AT au1.ibm DOT com
Life:       "Imagination is more important than knowledge"   Albert Einstein
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