On Sun, 2 Mar 2008, Christian Pernegger wrote:
Disable NCQ and your problem will go away.
Thank you. Just out of interest - which problem and why?
echo 1 > /sys/block/$i/device/queue_depth
I get access denied even as root. FWIW the value is at 1 for the 4
disks in the raid anyway. The SCSI disk has value 8, which is probably
irrelevant.
For completeness' sake:
mdadm version: mdadm - v2.6.4 - 19th October 2007
raid setup command: mdadm --create /dev/md0 --verbose --metadata=1.0
--homehost=jesus -n4 -c1024 -l5 --bitmap=internal --name tb-storage
-ayes /dev/sd[bcde]
cryptsetup command: cryptsetup luksFormat /dev/md0 --align-payload=2048
Any other suggestions on any of the issues?
Thanks,
You could try to change cables and such but you've already cc'd linux-ide,
AFAIK it can/could be a chipset/related issue and the guys who work on NCQ
etc are working on the problem is the last I heard..
You should try and narrow down the problem, is it always the same drive
that has that problem every time? Does it occur if you do a check on the
RAID 5 array or only when building? etc..
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