[ILUG] Why RAID

[John P. Looney]

On Tue, Jul 13, 2004 at 02:07:09PM +0100, Paul Jakma mentioned:
> Hmm, the E2xx cluster at alphyra was installed by sun with mirrored 
> RAID-5 arrays.

 A sad day. You'd think they are trying to give value for money or
something.

> >I'd only recommend it in cases where there are a lot of writes - 
> >like mail and database servers. It'll beat RAID5 by a good margin.
> 
> i'd much prefer raid-5 + spare, or mirrored raid-5 :)
> 
> >I'll be building a new mail server soon, with 6 15kRPM SCSI disks 
> >in it; I'll have a go with bonnie, and see what we get for RAID1+0 
> >and RAID5.
> 
> Be interesting. Try the new RAID-6 too, just for kicks.

 Well, we'ed be using hardware controllers on DL380 hardware. I'm sure
even the new HP stuff doesn't have RAID6 just yet.

John