Red Hat OpenShift Container Platform

Verifying cluster compatibility

Before you can start adding compute nodes of different architectures to your cluster, you must verify that your cluster is multi-architecture compatible.

Prerequisites

You installed the OpenShift CLI (oc).
IBM Power only: Ensure that you meet the following prerequisites:
- When using multiple architectures, hosts for Red Hat OpenShift Container Platform nodes must share the same storage layer. If they do not have the same storage layer, use a storage provider such as nfs-provisioner.
- You should limit the number of network hops between the compute and control plane as much as possible.

Procedure

Log in to the OpenShift CLI (oc).
You can check that your cluster uses the architecture payload by running the following command:
```
$ oc adm release info -o jsonpath="{ .metadata.metadata}"
```

Verification

If you see the following output, your cluster is using the multi-architecture payload:
```
{
 "release.openshift.io/architecture": "multi",
 "url": "https://access.redhat.com/errata/<errata_version>"
}
```
You can then begin adding multi-arch compute nodes to your cluster.
If you see the following output, your cluster is not using the multi-architecture payload:
```
{
 "url": "https://access.redhat.com/errata/<errata_version>"
}
```
To migrate your cluster so the cluster supports multi-architecture compute machines, see "Migrating to a cluster with multi-architecture compute machines".