Check manual page of drbd.stats
Counter statistics of DR:BD devices
This check uses the contents of /proc/drbd as sent by the Check_MK linux
agent. The check records the statistic counter of each DR:BD device.
These counters are handled by this check: al (activity log updates),
bm (bit map updates), lo (local count requests), pe (pending requests),
ua (unacknowledged requests), ap (application pending requests),
ep (epch objects), wo (write order), oos (kb out of sync)
At the moment this check does not use any thresholds. So it reports OK
all the time.
The name of the DRBD device e.g. drbd0
Each configured DRBD device will result in one service during inventory. All
devices with the connection state "Unconfigured" are skipped.