[CentOS] /etc/cron.weekly/99-raid-check

Rob Kampen rkampen at kampensonline.com
Mon Nov 30 19:41:48 UTC 2009

Farkas Levente wrote:
> hi,
> it's been a few weeks since rhel/centos 5.4 released and there were many
> discussion about this new "feature" the weekly raid partition check.
> we've got a lot's of server with raid1 system and i already try to
> configure them not to send these messages, but i'm not able ie. i
> already add to the SKIP_DEVS all of my swap partitions (since i read it
> on linux-kernel list that there can be mismatch_cnt even though i still
> not understand why?). but even the data partitions (ie. all of my
> servers all raid1 partitions) produce this error (ie. ther mismatch_cnt
> is never 0 at the weekend). and this cause all of my raid1 partitions
> are rebuild during the weekend. and i don't like it:-(
> so my questions:
> - is it a real bug in the raid1 system?
> - is it a real bug in my disk which runs raid (not really believe since
> it's dozens of servers)?
> - the /etc/cron.weekly/99-raid-check is wrong in rhel/centos-5.4?
> or what's the problem?
> can someone enlighten me?
> thanks in advance.
> regards.
I too run raid 1 on all my CentOS machines and have no such errors - 
each machine has 3 or 4 partitions mirrored on two drives, one of which 
is swap. I checked 6 of my servers today all fully up-to-date 5.4 and no 
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