Chapter 1. Preparing to deploy OpenShift Data Foundation

Deploying OpenShift Data Foundation on OpenShift Container Platform using local storage devices provided by IBM Power enables you to create internal cluster resources. This approach internally provisions base services. Then, all applications can access additional storage classes.

Before you begin the deployment of Red Hat OpenShift Data Foundation using local storage, ensure that your resource requirements are met. See requirements for installing OpenShift Data Foundation using local storage devices.

After you have addressed the above, follow the below steps in the order given:

1.1. Requirements for installing OpenShift Data Foundation using local storage devices

Node requirements

  • The cluster must consist of at least three OpenShift Container Platform worker nodes in the cluster with locally attached storage devices on each of them.

    • Each of the three selected nodes must have at least one raw block device available to be used by OpenShift Data Foundation.
    • The devices to be used must be empty, that is, there should be no persistent volumes (PVs), volume groups (VGs), or local volumes (LVs) remaining on the disks.
  • You must have a minimum of three labeled nodes.

    • Each node that has local storage devices to be used by OpenShift Data Foundation must have a specific label to deploy OpenShift Data Foundation pods. To label the nodes, use the following command:

      $ oc label nodes <NodeNames> cluster.ocs.openshift.io/openshift-storage=''

For more information, see the Resource requirements section in the Planning guide.