7장. Scaling storage capacity of GCP OpenShift Data Foundation cluster

Prerequisites

• You have administrative privilege to the OpenShift Container Platform Console.
• You have a running OpenShift Data Foundation Storage Cluster.
• The disk should be of the same size and type as used during initial deployment.

Verification steps

• Verify the Raw Capacity card.

  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.

  3. In the Block and File tab, check the Raw Capacity card.

     Note that the capacity increases based on your selections.

     참고

     The raw capacity does not take replication into account and shows the full capacity.

• Verify that the new object storage devices (OSDs) and their corresponding new Persistent Volume Claims (PVCs) are created.

  • To view the state of the newly created OSDs:

    1. Click Workloads Pods from the OpenShift Web Console.

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

       참고

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

  • To view the state of the PVCs:

    1. Click Storage Persistent Volume Claims from the OpenShift Web Console.

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

       참고

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

• Optional: If cluster-wide encryption is enabled on the cluster, verify that the new OSD devices are encrypted.

  1. Identify the nodes where the new OSD pods are running.

     $ oc get -n openshift-storage -o=custom-columns=NODE:.spec.nodeName pod/<OSD-pod-name>

     <OSD-pod-name>

     Is the name of the OSD pod.

     For example:

     $ oc get -n openshift-storage -o=custom-columns=NODE:.spec.nodeName pod/rook-ceph-osd-0-544db49d7f-qrgqm

     Example output:

     NODE
     compute-1

  2. For each of the nodes identified in the previous step, do the following:

     1. Create a debug pod and open a chroot environment for the selected hosts.

        $ oc debug node/<node-name>

        <node-name>

        Is the name of the node.

        $ chroot /host

     2. Check for the crypt keyword beside the ocs-deviceset names.

        $ lsblk