Re: Questions on Tape Reclamation
1997-03-12 17:49:22
Subject: |
Re: Questions on Tape Reclamation |
From: |
Dianne Sharp <DSHARP AT CLEAR.CO DOT NZ> |
Date: |
Thu, 13 Mar 1997 11:49:22 +1300 |
I didn't get an answer to these questions. Can anyone please help?
Dianne Sharp
Operations Analyst
CLEAR Communications, Auckland, New Zealand
dsharp AT clear.co DOT nz
>----------
>From: Dianne Sharp
>Sent: Tuesday, 04 March, 1997 5:13PM
>To: 'ADSM User Group'
>Subject: Questions on Tape Reclamation
>
>We are running ADSM Server V1 on MVS.
>
>We have been doing tape reclamation regularly (3 times a week) for a while
>now but noticed today that we still have a large number of tapes with a small
>amount of valid data on them.
>
>Unfortunately, we have a limited window in which to run tape reclamation, so
>have been ending it when we require the use of the cartridge drives (i.e.
>before it is completed).
>We have been setting the threshold to 50%, then back to 100%.
>
>QUESTIONS :
>
>1. Does anyone know the order in which tapes are reclaimed? (i.e. it
>certainly doesn't appear to be in %utilised order, which is probably why we
>are in the situation we are in.)
>
>2. If a tape is 0.0% utilised and we perform reclamation on it, why does the
>tape have to be physically mounted?
>
>Dianne Sharp
>Operations Analyst
>ISS CUSTOMER SUPPORT
>Ext 4208
>
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