Andy Smith wrote:

quoted

Checked that the disks are using DMA transfers (use 'hdparm')?

/dev/sda:
 HDIO_GET_MULTCOUNT failed: Inappropriate ioctl for device

Oh, SATA; right.
You need a patch to make hdparm play well with SATA drives.
Ehrm, but I think that all SATAs run in DMA mode anyway, so never mind.

Sorry for the noise.

(Btw, what's with the "putting me in the Mail-Followup-To field" thingy?)