ADSM-L

[ADSM-L] Can mixed incremental/selective backups be used to consolidate "offsite" data?

2009-02-04 07:54:30
Subject: [ADSM-L] Can mixed incremental/selective backups be used to consolidate "offsite" data?
From: "Davis, Adrian" <Adrian.Davis AT LEWISHAM.GOV DOT UK>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 4 Feb 2009 12:52:31 -0000
I have a number of filesystems on various servers which fragment badly
in my offsite (copy) storage pool when using progressive incremental
backups. The filesystems aren't particularly large, but files are
frequently created/modifed/deleted.

For local volumes I can simply "move nodedata" occasionally to sort this
out - but this does not work for offsite volumes (shame!!).

If I were to do occasional "selective" (weekly?/monthly?/adhoc?) backups
of the problem filesystems as well as daily incrementals, would this
force the data to be rewritten to the copy storage pool, thus
consolidating the data?

I presume (at least initally) I will have duplicate versions of most of
the files?

If this does work...

*) Are there any issues to be aware of when running subsequent
incrementals?
*) Will the duplicates expire at the next "expiration processing"?

Many Thanks,
   =Adrian=
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