Re: XFS and RAID5

[Seth Mos <knuffie@xxxxxxxxx>]

At 09:13 18-6-2001 -0400, Andrew Klaassen wrote:
> On Mon, Jun 18, 2001 at 03:55:36PM +1000,
> Robin Humble wrote:
>
> > Around the time of the 2.4.3 kernel we used XFS over software
> > RAID5 for a month or so before a disk died and we didn't
> > bother replacing it - we've been using 420G (7 disks) of RAID0
> > since with zero problems. RAID5 seemed ok and we sorted out
> > any initial performance problems as we found them with the
> > super-responsive XFS people on this list.
>
> 7 disks?  I'm curious: SCSI or IDE?  (We're looking into a
> Promise or 3ware card to allow us to put lots of IDE drives in a
> box and run software RAID over top, and were wondering if anyone
> else has had experience with these cards+software RAID+XFS.)

IIRC the 3ware driver is a bit shakey. The 3ware card is a hardware raid 
solution and not a software one. If you use promise cards you will probably 
use software raid.

The issue with the 3ware raid was firmware related. If the controller was 
missing a disk and running in  degraded mode file system corruption could 
and would occur.
Other then that it is a fine IDE raid controller.


> Andrew Klaassen

Good luck
--
Seth
Every program has two purposes one for which
it was written and another for which it wasn't
I use the last kind.