If the volume that is being requested is still 100% full, there may be a
partial file on it from another volume that is actually being reclaimed.
When you remove tapes from the library this can happen. In order to keep
up with TSM expiration and normal reclamation you will have to mount
tapes.

I would not set the volumes to unavailable, specifically for restores
and other normal TSM processing. 

Expiration does not request volumes, it deletes entries from the
database and that in turn frees space on volumes. That free space is
what is being reclaimed.



-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Dave Zarnoch
Sent: Tuesday, May 24, 2005 7:41 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Confused about reclamation


Folks,

I'm a little confused about space reclamation...

I ran out of empty slots in my silo so I had to move some tapes to a
shelf location.

I was really careful to only move tapes that TSM says are "full" and
100% utilized.

I now see a request for one of those tapes for space reclamation.

1 - Why is TSM calling for this tape?

2 - Should I mark all of my tapes on the shelf as "unavailable"?
     (I hesitate to do this because of problems that may occur if a
restore
      is called that needs this tape)

3 - What will happen when expiration runs?
     (Will the tapes be called for?)

Thanks!

DaveZ