Verify Ceph cluster state

To verify the state of a Ceph cluster, Ceph Controller provides special sections in KaaSCephCluster.status. The resource contains information about the state of the Ceph cluster components, their health, and potentially problematic components.

To verify the Ceph cluster state from a managed cluster:

1. Obtain kubeconfig of a managed cluster and provide it as an environment variable:

   export KUBECONFIG=<pathToManagedKubeconfig>
   

2. Obtain the MiraCeph resource in YAML format:

   kubectl -n ceph-lcm-mirantis get miraceph -o yaml
   

   Information from MiraCeph.status is passed to the miraCephInfo section of the KaaSCephCluster CR. For details, see KaaSCephCluster.status miraCephInfo specification.

3. Obtain the MiraCephHealth resource in YAML format:

   kubectl -n ceph-lcm-mirantis get miracephhealth -o yaml
   

   Information from MiraCephHealth is passed to the fullClusterInfo and shortClusterInfo sections of the KaaSCephCluster CR. For details, see KaaSCephCluster.status shortClusterInfo specification and KaaSCephCluster.status fullClusterInfo specification.

   Note

   Before MOSK 25.1, use MiraCephLog instead of MiraCephHealth as the resource name and in the command above.

To verify the Ceph cluster state from a management cluster:

1. Obtain the KaaSCephCluster resource in the YAML format:

   kubectl -n <projectName> get kaascephcluster -o yaml
   

   Substitute <projectName> with the project name of the managed cluster.

2. Verify the state of the required component using KaaSCephCluster.status description.