In this recipe, we will learn commands that are used to monitor the overall Ceph cluster.
Here is how we go about monitoring the Ceph cluster. The steps are explained topic-wise as follows.
To check the health of your cluster, use the
ceph command followed by
health as the command option:
# ceph health
The output of this command would be divided into several sections separated by a semicolon:
The first section of the output shows that your cluster is in the warning state,
HEALTH_WARN, as 64
placement groups (PGs) are degraded. The second section represents that 1408 PGs are not clean, ...