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Chapter 1. Preparing to deploy OpenShift Container Storage

When you deploy OpenShift Container Storage on OpenShift Container Platform using local storage devices, you can 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 Container Storage using local storage, ensure that your resource requirements are met. See requirements for installing OpenShift Container Storage using local storage devices.

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

1.1. Requirements for installing OpenShift Container Storage using local storage devices

Node requirements

The cluster must consist of at least three OpenShift Container Platform worker nodes 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 Container Storage.
  • The devices you use must be empty; the disks must not include physical volumes (PVs), volume groups (VGs), or logical volumes (LVs) remaining on the disk.

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

  • For storage nodes, FCP storage devices are required.
  • Multicloud Object Gateway is not supported.

Minimum starting node requirements [Technology Preview]

An OpenShift Container Storage cluster is deployed with minimum configuration when the standard deployment resource requirement is not met.

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