Chapter 3. Verifying OpenShift Container Storage deployment

Use this section to verify that OpenShift Container Storage is deployed correctly.

3.1. Verifying the state of the pods

To determine if OpenShift Container Storage is deployed successfully, you can verify that the pods are in running state.

Procedure

  1. Click Workloads → Pods from the left pane of the OpenShift Web Console.
  2. Select openshift-storage from the Project drop down list.

    For more information on the amount of pods to expect for each component and how the amount of pods varies depending on the number of nodes and OSDs, see Table 3.1, “Pods corresponding to storage components for a three worker node cluster”

  3. Verify that the following pods are in running and completed state by clicking on the Running and the Completed tabs:

    Table 3.1. Pods corresponding to storage components for a three worker node cluster

    ComponentNo. of podsName of the pod

    Number of pods that you must see for the following components:

    OpenShift Container Storage Operator

    1

    ocs-operator-*

    Rook-ceph Operator

    1

    rook-ceph-operator-*

    Multicloud Object Gateway

    4

    • noobaa-operator-*
    • noobaa-core-*
    • nooba-db-*
    • noobaa-endpoint-*

    Mon

    3

    • rook-ceph-mon-*
    • rook-ceph-mon-*
    • rook-ceph-mon-*

      (on different nodes)

    rook-ceph-mgr

    1

    rook-ceph-mgr-* (on storage node)

    MDS

    2

    rook-ceph-mds-ocs-storagecluster-cephfilesystem-* (2 pods on different storage nodes)

    lib-bucket-provisioner

    1

    lib-bucket-provisioner--* (on any node)

    Number of pods for CSI vary depending on the number of nodes selected as storage nodes (a minimum of 3 nodes)

    CSI

    10

    • cephfs (at least 5 pods)

      • csi-cephfsplugin-* (1 on each node where storage is consumed, that is, 3 pods on different nodes)
      • csi-cephfsplugin-provisioner-* (2 pods on different storage nodes if available)
    • rbd (at least 5 pods in total)

      • csi-rbdplugin-* (one on each node where storage is consumed, that is, 3 pods on different nodes)
      • csi-rbdplugin-provisioner-* (2 pods on different storage nodes if available)

    rook-ceph-drain-canary

    3

    rook-ceph-drain-canary-* (3 pods, that is, one on each storage node)

    rook-ceph-crashcollector

    3

    rook-ceph-crashcollector-* (3 pods)

    Number of OSDs vary depending on Count and Replica defined for each StorageDeviceSet in StorageCluster.

    OSD

    6

    • rook-ceph-osd-* (3 pods across different nodes)
    • rook-ceph-osd-prepare-ocs-deviceset-* (3 pods across different nodes)

3.2. Verifying the OpenShift Container Storage cluster is healthy

  • Click Home → Overview from the left pane of the OpenShift Web Console and click Persistent Storage tab.

    In the Status card, verify that OCS Cluster has a green tick mark as shown in the following image:

    Figure 3.1. Health status card in Persistent Storage Overview Dashboard

    Screenshot of Health card in persistent storage dashboard

    In the Details card, verify that the cluster information is displayed appropriately as follows:

    Figure 3.2. Details card in Persistent Storage Overview Dashboard

    Screenshot of Details card in persistent storage dashboard

For more information on verifying the health of OpenShift Container Storage cluster using the persistent storage dashboard, see Monitoring OpenShift Container Storage.

3.2.1. Verifying the Multicloud Object Gateway is healthy

  • Click Home → Overview from the left pane of the OpenShift Web Console and click the Object Service tab.

    In the Status card, verify that the Multicloud Object Gateway (MCG) storage displays a green tick icon as shown in following image:

    Figure 3.3. Health status card in Object Service Overview Dashboard

    Screenshot of Health card in object service dashboard

    In the Details card, verify that the MCG information is displayed appropriately as follows:

    Figure 3.4. Details card in Object Service Overview Dashboard

    Screenshot of Details card in object service dashboard

For more information on verifying the health of OpenShift Container Storage cluster using the object service dashboard, see Monitoring OpenShift Container Storage.

3.2.2. Verifying that the storage classes are created and listed

You can verify that the storage classes are created and listed as follows:

  • Click Storage → Storage Classes from the left pane of the OpenShift Web Console.

    Verify that the following three storage classes are created with the OpenShift Container Storage cluster creation:

    • ocs-storagecluster-ceph-rbd
    • ocs-storagecluster-cephfs
    • openshift-storage.noobaa.io
    ocs verifying create storage class