Re: AW: My Backup Script

On Tue, 26 Jul 2011 16:11:27 +0000, Markus Schaber wrote:
...
> > Von: Andy Canfield [mailto:andy.canfield_at_pimco.mobi]
...
> > disk, and thus not to be trusted too much. For safety an external hard
> > disk, flushed, should be good enough. No need for an entire other host.
> > Yes?
>
> Only if the external hard disk is only connected via fibre optics cable (SAS or similar) instead of copper cable.
>
> Electrical surges and short-cirquit faults tend to kill the server and the attached hard disks at the same time.

Only if the disk is connected to a different power source, otherwise
it doesn't much matter whether it's killed via data cable or power
supply. (Also, this will in most cases only kill the drive electronics;
there is still the possibility to have the driver platter to be installed
into another drive, by professional recovery services.)

But the simplest ist to disconnect the external drive and to use two
or three in cycles (if that hadn't been mentioned here), and take the
others home or another location different from the servers's.

Andreas

-- 
"Totally trivial. Famous last words."
From: Linus Torvalds <torvalds@*.org>
Date: Fri, 22 Jan 2010 07:29:21 -0800