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Re: [linux-lvm] Random file system errors



On 04/28/2009 11:52 PM, f-lvm media mit edu wrote:
Btw, one way to proceed on the test-your-hardware angle without
yanking disks (or even opening the case) and possibly turning this
into a heisenbug if it really -is- something like cabling would be
to do something like this:

    dd if=/dev/hda bs=1M count=1000 | md5sum

<snip>

And report back; it'd be good to close the loop on this if it's proven
-not- to be an LVM issue.


Frequent mismatched sha1sums on /dev/sdf which has the PV for the problem LV. All other /dev/sd* ran clean.

Thanks for the valuable debugging method. Looks like a SIL 680 card, or cable, or Seagate drive problem, but will be easy to isolate.


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