Verifying the cluster installation

After the cluster installation is complete, you can verify that the IBM Storage Ceph installation is running properly.

There are two ways of verifying the storage cluster installation as a root user:

  • Run the podman ps command.
  • Run the cephadm shell ceph -s command.

Prerequisites

Before you begin, make sure that you have the following prerequisites in place:

  • Root-level access to all nodes in the storage cluster.

Procedure

  • Run the podman ps command:

    For example,

    [root@host01 ~]# podman ps
    Note: In the NAMES column of the podman output, the unit files now include the FSID.
  • Run the cephadm shell ceph -s command:

    For example,

    [root@host01 ~]# cephadm shell ceph -s
      cluster:
        id:     8f43ad64-dd03-11ed-8ec8-525400c632ec
        health: HEALTH_WARN
                OSD count 0 < osd_pool_default_size 3
    
      services:
        mon: 1 daemons, quorum rhcs01 (age 14m)
        mgr: rhcs01.axgipe(active, since 109s)
        osd: 0 osds: 0 up, 0 in
    
      data:
        pools:   0 pools, 0 pgs
        objects: 0 objects, 0 B
        usage:   0 B used, 0 B / 0 B avail
        pgs:
    Note: The health of the storage cluster is in HEALTH_WARN status as the hosts and the daemons are not added.