Storage features

Use the following table to determine feature availability for local and shared persistent storage in OKD Virtualization.

OKD Virtualization storage feature matrix

OKD Virtualization storage feature matrix
Virtual machine live migrationHost-assisted virtual machine disk cloningStorage-assisted virtual machine disk cloningVirtual machine snapshots

OpenShift Container Storage: RBD block-mode volumes

Yes

Yes

Yes

Yes

OKD Virtualization hostpath provisioner

No

Yes

No

No

Other multi-node writable storage

Yes [1]

Yes

Yes [2]

Yes [2]

Other single-node writable storage

No

Yes

Yes [2]

Yes [2]

  1. PVCs must request a ReadWriteMany access mode.

  2. Storage provider must support both Kubernetes and CSI snapshot APIs

You cannot live migrate virtual machines that use:

  • A storage class with ReadWriteOnce (RWO) access mode

  • Passthrough features such as GPUs or SR-IOV network interfaces that have the sriovLiveMigration feature gate disabled

Do not set the evictionStrategy field to LiveMigrate for these virtual machines.