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Chapter 1. Overview of the OpenShift Data Foundation update process

This chapter helps you to upgrade between the minor releases and z-streams for all Red Hat OpenShift Data Foundation deployments (Internal, Internal-Attached and External). The upgrade process remains the same for all deployments.

You can upgrade OpenShift Data Foundation and its components, either between minor releases like 4.12 and 4.13, or between z-stream updates like 4.13.0 and 4.13.1 by enabling automatic updates (if not done so during operator installation) or performing manual updates. When a new z-stream release becomes available, the upgrade process triggers automatically if the update strategy was set to Automatic.

You also need to upgrade the different parts of Red Hat OpenShift Data Foundation in the following order for both internal and external mode deployments:

  1. Update OpenShift Container Platform according to the Updating clusters documentation for OpenShift Container Platform.

  2. Update Red Hat OpenShift Data Foundation.

    1. To prepare a disconnected environment for updates, see Operators guide to using Operator Lifecycle Manager on restricted networks to be able to update OpenShift Data Foundation as well as Local Storage Operator when in use.
    2. For updating between minor releases, see Updating Red Hat OpenShift Data Foundation 4.12 to 4.13.
    3. For updating between z-stream releases, see Updating Red Hat OpenShift Data Foundation 4.13.x to 4.13.y.
    4. For updating external mode deployments, you must also perform the steps from section Updating the Red Hat OpenShift Data Foundation external secret.
    5. If you use local storage, then update the Local Storage operator. See Checking for Local Storage Operator deployments if you are unsure.
Important

If you have an existing setup of OpenShift Data Foundation 4.12 with disaster recovery (DR) enabled, ensure to update all your clusters in the environment at the same time and avoid updating a single cluster. This is to avoid any potential issues and maintain best compatibility. It is also important to maintain consistency across all OpenShift Data Foundation DR instances. After the upgrade, you must run step 1 of the workaround for BZ#2215462 as documented in the DR upgrade Known issues section of Release notes.

Update considerations

Review the following important considerations before you begin.

  • The Red Hat OpenShift Container Platform version is the same as Red Hat OpenShift Data Foundation.

    See the Interoperability Matrix for more information about supported combinations of OpenShift Container Platform and Red Hat OpenShift Data Foundation.

  • To know whether your cluster was deployed in internal or external mode, refer to the knowledgebase article on How to determine if ODF cluster has storage in internal or external mode.
  • The Local Storage Operator is fully supported only when the Local Storage Operator version matches the Red Hat OpenShift Container Platform version.
  • The flexible scaling feature is available only in new deployments of OpenShift Data Foundation. For more information, see Scaling storage guide.
Important

The Multicloud Object Gateway only has a single copy of the database (NooBaa DB). This means if NooBaa DB PVC gets corrupted and we are unable to recover it, can result in total data loss of applicative data residing on the Multicloud Object Gateway. Because of this, Red Hat recommends taking a backup of NooBaa DB PVC regularly. If NooBaa DB fails and cannot be recovered, then you can revert to the latest backed-up version. For instructions on backing up your NooBaa DB, follow the steps in this knowledgabase article.

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