ADSM-L

Re: ADSM OFFSITE media data

1998-07-22 09:36:40
Subject: Re: ADSM OFFSITE media data
From: Doug Thorneycroft <dthorneycroft AT LACSD DOT ORG>
Date: Wed, 22 Jul 1998 06:36:40 -0700
Gary Harrison wrote:

You set the reclimation threshold on your storage pool. If you
q vol f=d on your offsite tapes, you will see a number for pct.
reclaimable
space. Set it to 100% to prevent reclimation. From what I've seen, most
set it between 50% and 60%.
>
>         I have ADSM V3.1.01 set up to run a copy of my main tape storage
>        pool to a Copy storage pool on a daily basis. This is then set as
>        ACCESS=OFFSITE and taken to our remote safe.
>
>         When I run Q VOL against these offsite tapes, I notice that some
>        tapes are 0.8% utilised.
>         My understanding of the way ADSM manages these tapes is that at
>        some point it should recopy the data on these tapes and set the
>        tapes as Empty and ready to return.
>         Is there some parameter which decides at what point these files are
>         copied and the tapes Freed ?
>        Is it based on percentage of tape used or on the number of files on
>        the tapes ?
>
>        NB. I am not using DRM and would like to avoid it if at all possible
>         !
>
>        Gary Harrison
>        Gary.Harrison AT Arcadiagroup.co DOT uk
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