> > So in short; I want backups on disk, then copy them to tape
> 
> Cutting to the chase on this:
> 
> Why?
> 

I can't speak for the original poster, but the value I can see in such a
product (depending on implementation) is:

. Allows very frequent incremental backups (hourly, depending on the
servers ability to cope with the extra load)
. Ability to restore to any given backup point, eg I spent the whole
morning working on a document, and then either (a) accidently deleted
it, or (b) the fileserver was sucked into a wormhole). There are
filesystem based solutions to (a), but not to (b).
. Depending on the implementation, the ability to aggregate the last
full backup with subsequent incremental backups to write a current
'virtual full' backup to tape.
. Alternatively to the above, the ability to write the full backup and
the incremental backups to tape to give you the 'restore to any backup
point' facility and keep the storage offline.

Just MHO though.

James




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