Chapter 4. Updating Red Hat OpenShift Data Foundation 4.10.x to 4.10.y

This chapter helps you to upgrade between the z-stream release for all Red Hat OpenShift Data Foundation deployments (Internal, Internal-Attached and External). The upgrade process remains the same for all deployments. The Only difference is what gets upgraded and what’s not.

  • For Internal and Internal-attached deployments, upgrading OpenShift Data Foundation upgrades all OpenShift Data Foundation services including the backend Ceph Storage cluster.

  • For External mode deployments, upgrading OpenShift Data Foundation only upgrades the OpenShift Data Foundation service while the backend Ceph storage cluster remains untouched and needs to be upgraded separately.

    Hence, we recommend upgrading RHCS along with OpenShift Data Foundation in order to get new feature support, security fixes, and other bug fixes. Since we do not have a strong dependency on RHCS upgrade, you can upgrade the OpenShift Data Foundation operator first followed by RHCS upgrade or vice-versa. See solution to know more about Red Hat Ceph Storage releases.

When a new z-stream release becomes available, the upgrade process triggers automatically if the update strategy was set to Automatic. If the update strategy is set to Manual then use the following procedure.

Prerequisites

  • Ensure that the OpenShift Container Platform cluster has been updated to the latest stable release of version 4.10.X, see Updating Clusters.

  • Ensure that the OpenShift Data Foundation cluster is healthy and data is resilient.

    • Navigate to Storage → Data Foundation → Storage Systems tab and then click on the storage system name.
    • Check for the green tick on the status card of Overview - Block and File and Object tabs. Green tick indicates that the storage cluster, object service and data resiliency is healthy.

  • Ensure that all OpenShift Data Foundation Pods, including the operator pods, are in Running state in the openshift-storage namespace.

    To view the state of the pods, on the OpenShift Web Console, click Workloads → Pods. 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.

  • Ensure that you have sufficient time to complete the OpenShift Data Foundation update process, as the update time varies depending on the number of OSDs that run in the cluster.

Procedure

  1. On the OpenShift Web Console, navigate to Operators → Installed Operators.

  2. Select openshift-storage project.

    Note

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

  3. Click the OpenShift Data Foundation operator name.
  4. Click the Subscription tab.
  5. If the Upgrade Status shows require approval, click on requires approval link.
  6. On the InstallPlan Details page, click Preview Install Plan.
  7. Review the install plan and click Approve.
  8. Wait for the Status to change from Unknown to Created.

Verification steps

  • Check the Version below the OpenShift Data Foundation name and check the operator status.

    • Navigate to Operators → Installed Operators and select the openshift-storage project.
    • When the upgrade completes, the version updates to a new version number for OpenShift Data Foundation and status changes to Succeeded with a green tick.

  • Verify that the OpenShift Data Foundation cluster is healthy and data is resilient.

    • Navigate to Storage → Data Foundation → Storage Systems tab and then click on the storage system name.
    • Check for the green tick on the status card of Overview - Block and File and Object tabs. Green tick indicates that the storage cluster, object service and data resiliency is healthy
  • If verification steps fail, contact Red Hat Support.