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check_mdstat.sh
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icinga2/nagios script for checking the status of a mdadm RAID using /proc/mdstat
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Gitea 67d558dd2d Added support for 'check' sync progress 3 years ago
test Added support for 'check' sync progress 3 years ago
README.md Rewritten to use /sys/block/$md/md/ 3 years ago
check_mdstat.sh Added support for 'check' sync progress 3 years ago
command_mdstat.conf Added command_mdstat.conf 3 years ago
service_mdstat.conf Added service_mdstat.conf 3 years ago

README.md

check_mdstat.sh

This script reads from /sys/block/$md/md/ to get the status of a RAID devices.

Other than check_md_raid and [check_md_raid updated](https://exchange.icinga.com/jasem/check_md_raid updated/) the data is not taken from /proc/mdstat which is less machine readable. Also not all RAIDs are checked simulataneously but only one specific. This gives the possibility to query some "performance" data and later add more granular checks.

Arguments

  • --raid | -r: Name of the RAID, e.g. md0
  • --input | -i: Input base directory. Defaults to /sys/block/
  • --debug | -d: More debugging output, cannot be used with icinga2

Results

  • CRITICAL: if any device failed
  • CRITICAL: if the state of the RAID is not active/started
  • CRITICAL: if the number of active devices is smaller than the number of configured devices.
  • WARNING: when recoverying/resyncing

Known issues