sal's argument makes a good case for the new "backup sets", aka, =
instant
archive feature in TSM-3.7 --- periodically collecting the active file =
data
into a single stream of tape would restore faster than having the =
server
parsing thru its data base and tape pool to recover the widely =
dispersed
active file data.  Also, Richard Sims makes a more provocative case re. =
file
system failures;  if you're really concerned about restore times for a =
file
system or data base, you're gonna mirror them (as the first line of
defense).

In the event of a site-disaster, the recovery time from DRM tapes =
(which
would be somewhat fragmented with a mix of active & inactive data) =
would
clearly be longer than restore from a "backup set" (or the "full" =
backup
referenced in sal's lengthy note)... the main point, I believe, is "can =
we
get our business data back in a timely fashion?" --- with TSM and 3590 =
or
similar tape technology, of course.


Don France

Technical Architect, P.A.C.E.
San Jose, CA
mailto:dfrance AT pacbell DOT net
PACE - http://www.pacepros.com
Bus-Ph:   (408) 257-3037




> -----Original Message-----
> From: Allen S. Rout [mailto:asr AT NERSP.NERDC.UFL DOT EDU]
> Sent: Wednesday, May 03, 2000 8:38 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: AW: AW: Incremental Forever
>
>
> =3D> On Wed, 3 May 2000 09:50:23 +0200, sal Salak Juraj
> <sal AT KEBA.CO DOT AT> said:
>
> > Hi Allen,
>
> > let me respectfully disagree with your respectfull disagreement =
:=3D8)
>
>
> I think we'll continue the discussion off-list.  I'm
> confident that if one of
> us convinces the other, it will be reported. :)
>
>
> - Allen S. Rout
>