> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On Behalf
> Of Gerhard Fiedler
> Sent: 14 September 2006 12:19
> To: piclist@mit.edu
> Subject: Re: [ot]:Ghost?
>
>
> Mike Singer wrote:
>
> >> Regening the system always results in a few losses.
> >
> > If you were serious about your data, you wouldn't rely only on HDD.
>
> Not sure where you get this from. HDD is IMO one of the best backup media
> around.
>
not really, a hard drive thats in a system is vulnerable to everything the
system is vulnerable to (fire,theft,power issues etc). one that is not in a
system is vulnerable to issues caused by long periods without a spinup
(though admittedly theese aren't as serious as they used to be).

they are also far more vulnerable to mechanical shock (e.g. your fire safe
dropping down through the floors of your building and getting burried under
rubble in the basement) than tapes and optical media.

imo the only secure way to do backups with hard drives is to have both spun
up regularlly but stored in different buildings or better still on different
sites. A grandfarther father son system with all the drives taking a share
of time as the main drive and at least one offsite at all times would
probablly be pretty secure.

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