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Ray,
Fair enough. If what you want is an _archive_, then, yes some
removable
medium has to be the way to go.
The most common mistake in specifying storage systems, however, is to
confuse backup requirements with archive requirements... they are
completely
different... it's good to see that you haven't fallen into this trap
:-)
Regards,
Mark
-----Original Message-----
From: Ray Barnett
[mailto:lists@xxxxxxx]
Sent: Sat 06/07/2002 14:26
To:
ukha_d@xxxxxxx
Cc:
Subject: RE: [ukha_d] Re: OT
- DVD writers
Mark,
Thanks for the advice, but that's exactly what I
do
at the moment, and it's exactly why I now need a DVD writer. There is a
flaw
in the plan that is partly my fault, but probably inevitable no matter
what...
I
was backing up nightly all changed files from the hard drive on my main
machine, to a second machine. However, periodically I do a "refresh" and
make
a fresh copy of all files to the backup machine - in order to clear out
deleted files etc.
At
some point a number of the 30MB scans I store on my drive have become
corrupted, rendering them useless. I checked my backup drive, and the
copies
there were also corrupted and useless.
Consequently the only solution I see is proper
verified archival backup onto either tape or DVD. DVD is winning at the
moment
down to cost and added benefits. Hard drive backup works out more expensive
than DVD as soon as you want to keep more than one generation of backup,
which
I most definitely do.
Accessing my source images is not a problem, since
I
will only need to access them if my main disk is corrupted, and I maintain
a
funky index of all photos online on my intranet - which was the main reason
for scanning the photos in the first place.
Ray
Barnett
Ray,
If you requirement is
simply backup for that kind of data volume,
there's a more
cost-effective, and fast solution than either you
propose.
A
second PC (second-hand, a P2 would be fine), with a, say, 60Gb HDD
in
it, a couple of network cards and a crossover cable - and lo, your
ideal
backup solution for about £200.
It's what I do at home for
backup...
it's also what we now do at work
for long-term archiving of the digital
images for the comet website!
The cost equation of hardware was about
the same, but once you took
into account the indexing problem (which CD
is that photo on)... it
became an obvious thing to
do.
Regards,
Mark
--- In ukha_d@y..., "Ray
Barnett" <lists@t...> wrote:
> Hi,
>
> Just wanted
a quick bit of advice since I gather some people here
use them
a
>
fair bit...
>
> I urgently need to implement a backup system
capable of looking
after my
> rapidly growing 20GBs of digital
photos.
>
> Current favourites are a DVD writer or an Onstream
60GB tape thingy.
> However, I've just confused myself over the
compatibilities of the
various
> DVD writers. Just how compatible
is a DVD-R writer, and is it a
dead duck
> now that DVD+R is
getting more popular?
>
> Thanks,
>
> Ray
Barnett.
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