Volume Group Snapshot module of Dell CSI drivers
Volume Snapshot Feature
In order to use Volume Snapshots, ensure the following components have been deployed to your cluster:
- Kubernetes Volume Snapshot CRDs
- Volume Snapshot Controller
- Volume Snapshot Class
Note: From v1.7, the CSI driver installation process will no longer create VolumeSnapshotClass. If you want to create VolumeSnapshots, then create a VolumeSnapshotClass using the sample provided in the /samples/volumesnapshotclass folder under respective drivers.
Creating Volume Snapshots
The following is a sample manifest for creating a Volume Snapshot using the v1 snapshot APIs:
apiVersion: snapshot.storage.k8s.io/v1 kind: VolumeSnapshot metadata: name: pvol0-snap1 spec: volumeSnapshotClassName: csm-snapclass source: persistentVolumeClaimName: pvol0
After the VolumeSnapshot has been successfully created by the CSI driver, a VolumeSnapshotContent object is automatically created. When the status of the VolumeSnapshot object has the readyToUse field set to true, it is available for use.
Note: VolumeSnapshots can be listed using the command
kubectl get volumesnapshot -n <namespace>