[Veritas-bu] catalog size - largest
2003-05-12 17:22:00
Subject: |
[Veritas-bu] catalog size - largest |
From: |
vaxzilla AT jarai DOT org (Brian Chase) |
Date: |
Mon, 12 May 2003 14:22:00 -0700 (PST) |
On Mon, 12 May 2003, Donaldson, Mark wrote:
> On Mon, 12 May 2003, vidit, kohli wrote:
> > Anyone ruuning netbackup catalog size = 150+ GB ? and How are you
> > backing it up?
The answer would seem to be that you should use high capacity tapes.
I don't compress my catalog on disk, so even though it's quite large, it
still easily fits on an LTO-1 cartridge (100GB native, but quite a lot
more for uncompressed flat files like the NetBackup catalog).
There's also SuperDLT (110GB native), AIT-3 (100GB native), LTO-2 (200GB
native), DTF-2 (200GB native), and supposedly sometime soon-- S-AIT
(500GB native).
> Mostly out of curiousity... What value is there in infinite retention?
> 10 years from now - assuming I'm still employed here, any data is
> hopelessly useless. What value is there in a 10 or 15 year old file?
That depends on the data in question. A sizeable percentage of the
data I deal with, digital image files, needs to be kept forever. It
represents fundamental intellectual property of my employer. The analog
medium of film is currently better from a longevity standpoint; however,
the fidelity of digital is better. We'll maintain copies on both.
Still, I don't count on Veritas or NetBackup to outlast the need to
preserve that data. It'll likely have to be migrated to a new
system, and probably before even a few decades have
passed.
One thing I'm curious about is how NetBackup and other Unix apps
will cope with January 19, 2038.
-brian.
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