Critical issues with WD green drives

Bruce Cran bruce at
Thu Jun 2 14:54:57 UTC 2011

On Thu, 02 Jun 2011 14:16:01 +0200
Andrea Venturoli <ml at> wrote:

> In a server of mine (7.3p4/i386) I replaced a 1TB Hitachi SATA drive 
> (which worked perfectly), with two brand new Western Digital 2TB
> disks. Now I'm having critical problems, ranging from the disks
> getting stuck, to the box rebooting.
> Those are not the main disks in the box, so they are currently 
> unmounted; I wasn't even able to run newfs on them, since every
> process that tries to use these disk will hang after a while (and
> can't be killed either).

I'd guess this is probably due to their overly-aggressive power
management. If you can, run wdidle3.exe from a Windows environment to
turn off the default idle timer.

Bruce Cran

More information about the freebsd-questions mailing list