WARNING: mismatch_cnt is not 0 on /dev/md0
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08-08-2011, 01:13 PM
Post: #1
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WARNING: mismatch_cnt is not 0 on /dev/md0
You may get a message from logwatch
WARNING: mismatch_cnt is not 0 on /dev/md0 This means that there is a mismatch of the synchronisation of the blocks between your two (or more) drives. Firstly, check that the array is healthy: cat /proc/mdstat then perform: repair >/sys/block/md0/md/sync_action this will attempt to repair the poorly synchronised blocks on md0 you can check if the synchronisation is finished by cat /proc/mdstat after the repair is completed, you can check if synchronisation had been successful with: check >/sys/block/md0/md/sync_action Apparently it is fairly common to have this happen on /boot and swap partitions, however if you are particularly concerned it might be worthwhile using smartctl to do a test of the integrity of the drive. smartctl --test long /dev/sda you can inspect the progress on the smartctl via this command smartctl -a /dev/md2 |
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