Re: RAID Eliminates Need for Backups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (was Re: [tlug] hard drive shock resiliance and health - linux tools?)

[Niels Kobschätzki <n.kobschaetzki@example.com>]

On Oct 29, 2006, at 2:48 PM, Jim wrote:

> Matt Gross wrote:
>
> > ... Jim wrote:
> > > By the way, do you keep backups?
>
> > Hmmm..., backups?  Isn't that why I've chosen RAID5?
>
> It's a common misconception that RAID eliminates the need for backups.
>
> It's also necessary to _practice_ recovery from those backups.
>
> > If I was to backup my 2.1TB RAID5 disk array, can someone
> > recommend a low cost backup method?
>
> Big hard drives in an old clunker PC at a friend's house
> connected to the internet, accessed only by ssh.
> rsync -e ssh is your friend.

I would use some external device over firewire or usb2.0 which can  
handle that much of data. then store that thing at a friends house or  
where ever (not in the same location as your raid - a fire would kill  
the backup as well) and do the backup once or twice a week…

Niels