From: Markus Falb wnefal@gmail.com
I do not know exactly about md's raid 6, but I always thougt that this false positive mismatch count thing was raid 1 specific. Because of this all I also would tend to turn off the weekly raid check cronjob for md raid 1
Ok, so basicaly we should just ignore these mismatches...
And mdraid seems not alarmed about it...
- Is there something to activate to get some kind of mdraid warnings?
In /var/log/messages I cannot find any alarming message.
$ chkconfig --list mdmonitor
Already running...
configure it with a working email address. And there *are* entries in /var/log/messages. Could it be that this happened a long time ago, you did not notice and the log files rotated out?
There are entries... but nothing alarming... By example: kernel: md: syncing RAID array md5 kernel: md: md5: sync done. While mdstat says that this raid device has only 1 partition left... md5 : active raid1 sda7[0] 4096448 blocks [2/1] [U_] I wonder what it did sync it with...
Same for the raid devices that have a failed partition... kernel: md: syncing RAID array md6 kernel: md: md6: sync done.
Maybe I missed a some messages a few weeks/months/years ago... but I would expect the warnings to come back! Anyway, I made a monitoring script that does the checks.
Thx, JD