[sclug] Mirror disks across machines like distributed RAID?

[John Stumbles]

Dickon Hood wrote:
> On Wed, Jan 06, 2010 at 16:35:13 +0000, John Stumbles wrote:

> : And when you start talking about general purpose filestores with
> : people's home directories on them there's surely no way you can engineer
> : each and every application the users might run to get round failure of
> : one disc?
> 
> No, at that point you need something reasonably available.  But you will
> probably find that a cheap(ish) box exporting over NFS will work well for
> that sort of thing, and a full-blown multi-master, multi-head SAN setup
> overkill.

That's what I did have: cheap box, NFS, IMAPd etc. It fell over when I 
was 100 miles away :-(.

I generally have 2 boxes running so that's why I was thinking why not 
put the 2nd disc of the RAID pair in the other box and have some 
resilience to failure of the server box? All it costs is software.


-- 
John Stumbles                                       http://yaph.org.uk
:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-:-: