OpenShift Virtualization: Failed to create VM on OpenShift Virtualization UI if no default StorageClass exists in OCP cluster

Summary: The VM cannot be created via OpenShift Virtualization if no default StorageClass exists in OCP cluster. Because non-default StorageClass cannot be selected for rootdisk or for the user added disks. ...

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Symptoms

Failed to create new VM via OpenShift Virtualization UI if no default StorageClass exists in OCP cluster.

Cause

It is an issue of OpenShift Virtualization feature.
For the VM rootdisk and user added disks, they can only select the default StorageClass in the OCP cluster.
Non-default StorageClass cannot be selected.

Resolution

There are two options to workaround this issue:
Example of a default StorageClass: 
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: my-sc-1
  annotations:
    storageclass.kubernetes.io/is-default-class: 'true'
provisioner: csi-vxflexos.dellemc.com
parameters:
  csi.storage.k8s.io/fstype: ext4
  storagepool: SP-SW_NVME-1
  systemID: efc2f2902330a60f
reclaimPolicy: Delete
allowVolumeExpansion: true
volumeBindingMode: WaitForFirstConsumer

Affected Products

APEX Cloud Platform for Red Hat OpenShift
Article Properties
Article Number: 000217665
Article Type: Solution
Last Modified: 20 فبراير 2026
Version:  3
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