ADSM-L

Re: No Automatic Reclamation

1997-09-26 11:58:46
Subject: Re: No Automatic Reclamation
From: ALLEN BARTH <abarth AT KEMPER DOT COM>
Date: Fri, 26 Sep 1997 10:58:46 -0500
     Server: Aix 2.1.0.13  --> 3494 with 6 3490e drives.

     Primary tape pool no colocation
       expire interval 6 hours
       reclamation threashold 60%, reuse delay 3 days
       time has not been a concern
       with the atl, tape mounts are not an issue

     Copy storage pool
       reclamaion set at 100% then,
       daily (weekdays) set threshold to 75%, reuse delay 5 days
       we cycle 5 - 25 gig of data daily
       time 30mins - 2hrs
       when done set threshold back to 100%

     The entire process is script controlled.



______________________________ Reply Separator _________________________________
Subject: No Automatic Reclamation
Author:  Nicolas Clerc <Nicolas.Clerc AT SYCOMORE DOT FR> at ~Internet
Date:    9/26/97 4:07 PM


Hi ADSMers,

We are using ADSM 2.1.0.6 on AIX 4.1.5
We are currently planning our ADSM configuration.

I worry about the Reclamation process and I have some questions :
How long does the Reclamation process take every day to ADSM  ?
  to the administrators (move back offsite volume for Reclamation,
  mount each volume, ...) ?
Do we have to plan a lot of time for this task ?
  It probably depends on the number of volume and on the reclamation threshold
  you choose.
When is it performed ? After the daily backup, before the backup ?
In order to avoid worrying about it every day I suggest this configuration:
  We set the reclamation threshold to 100% so that reclamation
  is not performed every day. Once a month we change the reclamation threshold
  to 40% and we work on it during the whole day.
  Is it a good idea ? Why not ? What do you suggest ?

Any experience in this area will be appreciated.

Thanks in advance.


Nicolas Clerc.

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