On Wed, 2009-11-04 at 11:01 +0000, Mark Whidby wrote:
> John Rowe wrote:
> >> Nov  4 10:36:31 terra kernel: sd 5:0:0:1: SCSI error: return code = 0x000b0000
> >> Nov  4 10:36:31 terra kernel: end_request: I/O error, dev sdq, sector 5858973568
> >> Nov  4 10:36:31 terra kernel: printk: 16 messages suppressed.
> >> Nov  4 10:36:31 terra kernel: Buffer I/O error on device sdq, logical block 732371696
> >> Nov  4 10:36:31 terra kernel: sd 5:0:0:1: SCSI error: return code = 0x000b0000
> >> Nov  4 10:36:31 terra kernel: end_request: I/O error, dev sdq, sector 5858973568
> >> Nov  4 10:36:31 terra kernel: Buffer I/O error on device sdq, logical block 732371696
> >> Nov  4 10:36:32 terra kernel: sd 5:0:0:1: SCSI error: return code = 0x000b0000
> >> Nov  4 10:36:32 terra kernel: end_request: I/O error, dev sdq, sector 5858973688
> >> ...
> >> Nov  4 10:36:33 terra kernel: sd 5:0:0:1: SCSI error: return code = 0x000b0000
> >> Nov  4 10:36:33 terra kernel: end_request: I/O error, dev sdq, sector 5858973688
> >> Nov  4 10:36:33 terra kernel: sd 5:0:0:1: SCSI error: return code = 0x000b0000
> >> Nov  4 10:36:33 terra kernel: end_request: I/O error, dev sdq, sector 5858973688
> >> Nov  4 10:36:33 terra kernel: sd 5:0:0:1: SCSI error: return code = 0x000b0000
> >> Nov  4 10:36:33 terra kernel: end_request: I/O error, dev sdq, sector 5858973568
> > 
> > It's looking horribly like a disk error: have you checked it?
> > Try badblocks.
> 
> That's what I thought originally but no matter which combination of 4 disks
> I try to configure I always get these errors. Unless the box has been populated
> with a whole batch of bad disks, I suppose.

I thought that might be too easy, but it was worth a try.

Does it follow any particular disk controller? Cable?

John