ADSM-L

Re: The "incremental forever" paradigm

1998-03-06 14:03:50
Subject: Re: The "incremental forever" paradigm
From: Richard Sims <rbs AT BU DOT EDU>
Date: Fri, 6 Mar 1998 14:03:50 -0500
>Also, let's not forget that remote host disks do go bad, and that
>performing a full restore from an "incremental forever" backup set
>will usually result in a extraordinary number of tape mounts and
>a correspondingly long restore window. Periodic full backups help
>alleviate this problem.

Your criticism is ignoring all the ADSM architectural features which
deal with this, such as Collocation By Filespace and Tape Reclamation.
If you want to base recovery on traditional full + incremental
backups, you should not bother with ADSM, as it's just a waste of
money for the more basic things you want to do.  You may want to
review your enterprise's needs, as well as the full repertoire of
ADSM's capabilities, and decide direction based upon that larger
view.  Also review the ADSM-L archives, as this issue has been
extensively discussed in the past.
     Richard Sims, BU