On Tue, Jan 16, 2007 at 08:00:14AM +0100, Nino Dehne wrote:
> On Tue, Jan 16, 2007 at 05:24:12PM +1100, Daniel Carosone wrote:
> > any chance you could test with a RAID5 - ideally from the same RAID5 -
> > without cgd?  It could be a controller or drive problem, or even a
> > power supply problem when all drives are active.  RAID1 won't
> > necessarily hit those conditions, especially for read.
> 
> I'm getting your drift. While I can't make a filesystem on the RAID5
> directly, see below.

Can you check the s.m.a.r.t. status of your drives?

 atactl wdX smart status

or use
 smartctl -a /dev/wdXd
from pkgsrc/sysutils/smartmontools

Bernd