On Fri, Aug 31, 2007 at 08:09:41AM -0700, Brian Buhrow wrote:
> 	Hello.  We're running these exact same drives, modulo a revision
> number, on our backup server, and have been for over a year without
> incident.  We're using them in conjunction with Promise SATA controllers
> driven by the pdcsata(4) driver.

What is your disklabel on these drives ?
There seems to be an alignement condition for this problem to show up.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 26 ans d'experience feront toujours la difference
--