On 2009-09-07T12:44:42, Chris Webb wrote: > Sorry for the late follow up to this thread, but I'm also seeing symptoms that > look identical to these and would be grateful for any advice. I think I can > reasonably rule out a single faulty drive, controller or cabling set as I'm > seeing it across a cluster of Supermicro machines with six Seagate ST3750523AS > SATA drives in each and the drive that times out is apparently randomly > distributed across the cluster. (Of course, since the hardware is identical, it > could still be a hardware design or firmware problem.) Seeing the same thing with a Supermicro motherboard and a pair WDC 2 TB drives. Disabling NCQ does not resolve the issue, nor increasing the safe_mode_delay. This is with 2.6.30.4. This machine is sitting on its hand (i.e. no significant load). /Allan -- Allan Wind Life Integrity, LLC <http://lifeintegrity.com> -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html