There are actually a number of "virtual tape" solutions out there that
would provide what you're looking for, specifically they look like a
tape drive to the backup application, but they're actually disk in the
background, and they compress the data when you write it. They may not
keep just one copy, but at least they'll compress it for you, and when
you "eject" a tape, it will create a physically for you to send offsite.
Check out the VTL offerings from ADIC, EMC, StorageTek, Quantum, etc.
I'm sure one of these devices might be just the ticket for you.
For us, we're using ATA disk in a NetApp NearStore to hold our
disk-based backups. We're not at 12TB per day, but it's still a pretty
cost-effective solution. We have found some bottlenecks in the
"bpduplicate" process, which we're told has a fix in NBU 5.1 and will be
permanently resolved in a future release.
Steve White
-----Original Message-----
From: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of Sto
Rage(c)
Sent: Friday, October 15, 2004 8:29 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Fwd: [Veritas-bu] Backups to disk
Well, for one it uses the disks as virtual tape and dumps these large
image files for every job. So you end up needing as many TB of disk
space as you needed tapes. You cannot afford to keep a month's worth of
data on disk, at least not for us. We have 12 TB of storage that needs
to be backed up every day.
Have you seen products from Data Domain or NetApp's SnapVault ? These
are nice but even these force you to use their disks arrays.
Wish there was a software or an appliance that would allow you to
attach any disk
array you want but will intelligently compress your backups such that
they keep only one instance of a file and keep track of just the
changed fragments.
-G
BTW, I don't work for either of these companies.
On Thu, 14 Oct 2004 21:19:52 -0400 (EDT), Steve Quan <sq01 AT yorku DOT ca>
wrote:
> Hi,
>
> Can you explain why (re:efficency) ?
>
> Thanks,
> /Steve
> ---
>
>
> On Thu, 14 Oct 2004, [ISO-8859-1] Sto Rage(c) wrote:
>
> > We have a lot of ATABoy and ATABeast units. But none of them are
being
> > used with Veritas for disk backups. We use them for online archives.
> > We think Veritas's backup to disk is an inefficient solution.
> >
> > -G
> >
> >
> >
> > On Thu, 14 Oct 2004 19:32:02 -0400, dyankowski AT cits.canon DOT com
> > <dyankowski AT cits.canon DOT com> wrote:
> > >
> > >
> > > Anyone every use a Nexsan ATABoy with Veritas?
> > >
> > > Thanks,
> > >
> > > Dan
> > >
> > > _______________________________________________
> > > Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> > > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> > >
> > _______________________________________________
>
>
> > Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
> >
>
_______________________________________________
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