Deploying MGRs

The Manager (MGR) is a key component for Ceph cluster management. It collects the status and runtime metrics of a Ceph cluster. You only need to deploy MGRs on ceph1, and then synchronize the configuration to ceph2 and ceph3.

1. Deploy MGRs.

   1	ceph-deploy mgr create ceph1 ceph2 ceph3

   

2. Check the Ceph cluster status to determine whether the MGRs are successfully deployed.

   1

   ceph -s

   The deployment is successful if the command output is similar to the following:

   1 2 3 4 5 6 7

   cluster: id: f6b3c38c-7241-44b3-b433-52e276dd53c6 health: HEALTH_OK services: mon: 3 daemons, quorum ceph1,ceph2,ceph3 (age 25h) mgr: ceph1(active, since 2d), standbys: ceph2, ceph3