ADSM-L

Offsite DR Cartridges

1997-01-27 19:09:15
Subject: Offsite DR Cartridges
From: Dave Cannon <dcannon AT VNET.IBM DOT COM>
Date: Mon, 27 Jan 1997 16:09:15 PST
>The problem, though, is not quite as bad as it sounds.  When you copy a
>collocated tape, the files of course stay together, and so a copypool tape of
>a collocated tape, even though the backup pool is not collocated, should
>retain a fair amount of the "togetherness" of a user's files.  I am not sure
>about the backup of a diskpool to tape, but would not expect the same kind of
>results.  So it would depend on where your data is when it is backed up - if
>it is on tape, then it's not so much of a problem, while if it's on disk, then
>you get a random order (I think).

Jerry,

A disk storage pool is backed up by node/filespace, so the files do not
get stored in random order in the copy storage pool.

Dave Cannon
ADSM Development
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