Bug#563602: mdadm: autocheck running checkarray fails and degrades array when weekly cron jobs tick off

[martin f krafft]

also sprach Mike Bilow <mike at bilow.com> [2010.01.04.1326 +1300]:
> Because of the size of the media being checked, the "checkarray" 
> instance that was invoked at 0057 had not yet completed when the usual 
> weekly cron jobs triggered at 0626. It is common for those cron jobs to 
> send signals to various daemons in order to allow log rotation.
> 
> Since I am fairly confident that there is nothing actually wrong with 
> the disks, although I have no hard proof that it was the cron jobs that 
> caused "checkarray" to fail in such a way as to degrade array "md1" and 
> mark "sda2" as faulty, the coincidence is too strong to ignore. I am not 
> sufficiently familiar with the weekly cron jobs installed by default, 
> but experience teaches that problems occurring exactly at 0626 are 
> extremely likely to be associated with the signals sent to daemons.

Please fire off checkarray at an earlier time so that it can
complete before the 0626 run. Does the problem reoccur?

-- 
 .''`.   martin f. krafft <madduck at d.o>      Related projects:
: :'  :  proud Debian developer               http://debiansystem.info
`. `'`   http://people.debian.org/~madduck    http://vcs-pkg.org
  `-  Debian - when you have better things to do than fixing systems
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