[H-GEN] Linux file server

[Brendan]

On Fri, 2004-07-02 at 12:14, Harry Phillips wrote:
> [ Humbug *General* list - semi-serious discussions about Humbug and     ]
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> 
> Russell Stuart wrote:
> >     It might seem this does should not hold for Raid 1 (mirroring).
> >     It does.  Another way to use the second drive is as a hot
> >     spare - doing an image backup each night after checking
> >     that all you data looks consistent.  This is more reliable
> >     because data is damaged more often by applications (bugs
> >     corrupting files) and users (eg deleting the wrong file) than
> >     by hardware failures.  If you are mirroring the damage is
> >     reflected on all drives immediately.  If you do a nightly
> >     backup you have a reasonable chance of recovering the data
> >     while the system is online, without messing around with backup
> >     media.
> 
> I have been considering this myself, so what would you use to image one 
> drive to another each night? dd?

rsync would do the trick for this. 

You would have to make the source drive read only for the duration of
the copy, and rsync would be much faster than dd.

-Brendan