Re: High mismatch count on root device - how to best handle?

[Mark Knecht <markknecht@gmail.com>]

On Wed, Apr 27, 2011 at 10:31 PM, Wolfgang Denk <wd@denx.de> wrote:
> Dear Phil Turmel,
>
> In message <4DB8BEFE.3020009@turmel.org> you wrote:
>>
>> Hmmm.  Since its not swap, this would make me worry about the hardware.  Have you considered shuffling SATA port assignments to see if a pattern shows up?  Also consider moving some of the drive power load to another PS.
>
> I do not think this is hardware related.  I see this behaviour on at
> least 5 different machines which show no other problems except for the
> mismatch count in the RAID 1 partitins that hold the /boot partition.
>

That's interesting to me.

In my case /boot is on it's own partition and not mounted when I do
the test. There was however a RAID6 mounted at the time I was doing
the repair on the RAID1. I tried dismounting it but that didn't change
anything. Still got the same sort of error count.

>> > Still, if I haven't a clue which drive is causing the mismatch then I
>> > cannot know which one to pull..
>>
>> This is really a file system problem, and effort are underway to solve it.  Btrfs in particular, although it is still experimental.  I'm looking forward to that status changing.
>
> It will probably take some time until grub can boot from a RAID1 array
> with btrfs on it...
>
> Best regards,
>
> Wolfgang Denk

Thanks for the info.

Cheers,
Mark
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