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Chapter 5. Verifying external OpenShift Data Foundation storage cluster deployment

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Use this section to verify that the OpenShift Data Foundation deployed as external storage is deployed correctly.

5.1. Verifying the state of the pods

  1. Click Workloads Pods from the left pane of the OpenShift Web Console.

  2. Select openshift-storage from the Project drop-down list.

    Note

    If the Show default projects option is disabled, use the toggle button to list all the default projects.

    For more information on the expected number of pods for each component and how it varies depending on the number of nodes, see Table 5.1, “Pods corresponding to OpenShift Data Foundation components”

  3. Verify that the following pods are in running state:

    Table 5.1. Pods corresponding to OpenShift Data Foundation components
    ComponentCorresponding pods

    OpenShift Data Foundation Operator

    • ocs-operator-* (1 pod on any worker node)

    • ocs-metrics-exporter-* (1 pod on any worker node)

      Note

      This pod must be present in openshift-storage-extended namespace as well such that there is 1 pod in each openshift-storage and openshift-storage extended namespace.

    • odf-operator-controller-manager-* (1 pod on any worker node)
    • odf-console-* (1 pod on any worker node)
    • csi-addons-controller-manager-* (1 pod on any worker node)

    Rook-ceph Operator

    • rook-ceph-operator-* (1 pod on any worker node)

    CSI

    • cephfs

      • csi-cephfsplugin-* (1 pod on each worker node)
      • csi-cephfsplugin-provisioner-* (2 pods distributed across worker nodes)

    • rbd

      • csi-rbdplugin-* (1 pod on each worker node)
      • csi-rbdplugin-provisioner-* (2 pods distributed across worker nodes)

5.2. Verifying that the OpenShift Data Foundation cluster is healthy

  1. In the OpenShift Web Console, click Storage Data Foundation.
  2. In the Status card of the Overview tab, click Storage System and verify that you can now see two storage system links in the pop up that appears.

  3. Click each of the storage system links and verify the following:

    1. In the Status card of the Block and File tab, verify that the Storage Cluster has a green tick.
    2. In the Details card, verify that the cluster information is displayed.

For more information on the health of the OpenShift Data Foundation cluster using the Block and File dashboard, see Monitoring OpenShift Data Foundation.

5.3. Verifying that the Multicloud Object Gateway is healthy

  1. In the OpenShift Web Console, click Storage Data Foundation.

  2. In the Status card of the Overview tab, click Storage System and then click the storage system link from the pop up that appears.

    1. In the Status card of the Object tab, verify that both Object Service and Data Resiliency have a green tick.
    2. In the Details card, verify that the Multicloud Object Gateway (MCG) information is displayed.
Note

The RADOS Object Gateway is only listed in case RADOS Object Gateway endpoint details are included while deploying OpenShift Data Foundation in external mode.

For more information on the health of OpenShift Data Foundation cluster using the object dashboard, see Monitoring OpenShift Data Foundation.

5.4. Verifying that the storage classes are created and listed

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

  2. Verify that the following storage classes are created with the OpenShift Data Foundation cluster creation:

    • ocs-external-storagecluster-ceph-rbd
    • ocs-external-storagecluster-ceph-rgw
    • ocs-external-storagecluster-cephfs
Note
  • If an MDS is not deployed in the external cluster, ocs-external-storagecluster-cephfs storage class will not be created.
  • If RGW is not deployed in the external cluster, the ocs-external-storagecluster-ceph-rgw storage class will not be created.

For more information regarding MDS and RGW, see Red Hat Ceph Storage documentation

5.5. Verifying that Ceph cluster is connected

Run the following command to verify if the OpenShift Data Foundation cluster is connected to the external Red Hat Ceph Storage cluster. 

$ oc get cephcluster -n openshift-storage-extended
NAME                                      DATADIRHOSTPATH   MONCOUNT   AGE   PHASE       MESSAGE                          HEALTH      EXTERNAL   FSID
ocs-external-storagecluster-cephcluster                                51m   Connected   Cluster connected successfully   HEALTH_OK   true       8f01d842-d4b2-11ee-b43c-0050568fb522

5.6. Verifying that storage cluster is ready

Run the following command to verify if the storage cluster is ready and the External option is set to true. 

$ oc get storagecluster -n openshift-storage-extended
NAME                          AGE   PHASE   EXTERNAL   CREATED AT             VERSION
ocs-external-storagecluster   51m   Ready   true       2024-02-28T10:05:54Z   4.15.0
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