[CentOS] puzzling md error ?

John R Pierce pierce at hogranch.com
Sun Feb 28 21:23:59 UTC 2010


Peter Hinse wrote:
> Am 28.02.2010 22:03, schrieb John R Pierce:
>   
>> WARNING: mismatch_cnt is not 0 on
>>     
>
> Have a look at http://www.arrfab.net/blog/?p=199
> It says:
>
>   
>> A `echo repair >/sys/block/md0/md/sync_action` followed by a `echo
>> check >/sys/block/md0/md/sync_action` seems to have corrected it. Now
>> `cat /sys/block/md0/md/mismatch_cnt` returns 0 …
>>     

Thanks.  I was trying to figure out how from the mdadm commands (UGH!) 
to do a scan.   

# cat /sys/block/md10/md/mismatch_cnt
8448
# cat /sys/block/md11/md/mismatch_cnt
7296

fugly.  Since the mirrors aren't checksummed, can i assume this means 
there's likely some data messups here?

Anyways, the repair is running on both md10 and md11, i'll check back 
with my final results...






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