[CentOS] Centos and Software RAID
Les Mikesell
lesmikesell at gmail.com
Sat May 27 03:17:22 UTC 2006
On Fri, 2006-05-26 at 20:37, Raymond Lillard wrote:
> >
> > Note that unless it has changed recently, SATA drives don't pass
> > errors up to the software raid layer correctly. If a drive
> > dies it doesn't get kicked out as it should.
>
>
> Would you please elaborate as this seems to run
> counter to my experience?
>
> I have had 3 drive fail events with software raid (md)
> tools and SATA drives in the last year. The drive was
> taken off-line and I as the sysadm received a warning
> message via email.
>
> I downed the systems (after-hours) and replaced
> the failed drive. (These machines don't have hot-
> swappable h/w) No problems were encountered.
I'm just repeating what I've seen elsewhere - which is that
if you have hot-swaps you can yank a drive and it doesn't
show as failed in the raid. I don't have any SATA's
myself - mine are all SCSI and they have failed correctly.
Perhaps it depends on the failure mode.
--
Les Mikesell
lesmikesell at gmail.com
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