On Nov 17, 2009, at 11:28 AM, Karanbir Singh wrote: > I've seen vibration impact disk i/o on sata disks as well. Make sure > this is not your major problem ( eg. run the disks outside the machine > for a few days - depending on your environment, that might be possible ). I saw that page too :-) There's another WD disk in the box on a different controller that does not suffer from the problem. --Chris