Each placement group in Ceph has one or more statuses assigned to it; normally you want to see all your PGs with active+clean against them. Understanding what each state means can help us identify what is happening to PG and whether you need to take action.
PG states -the good, the bad, and the ugly
The good
The following states are indication of a healthy operating cluster, no action needs to be taken.
The active state
The active state means that PG is in full health, and it is capable of accepting client requests.