title: Ceph Storage: OSDs
agents: linux
catalog: os/storage
license: GPLv2
distribution: check_mk
description:
 This check monitors the number of and epoch of OSDs
 of Ceph storage systems.

 Levels for the numbers of OSDs in state 'out' or 'down'
 are configurable. Default levels are set to 7, 5 each.

 Epoch levels are configurable. Default levels are 50 and 100
 for a timerange of 15 minutes.

 Moveover if any OSD is 'near full' the check goes WARN and
 'full' the check reports CRIT.

discovery:
 One service is created.
