docs/doc/source/storage/kubernetes/dell-storage-snapshots-46916ac34bf0.rst

Create Snapshots

A Volume Snapshot Class enables the creation of snapshots for , allowing efficient backups and data restoration. This functionality ensures data protection, facilitating point-in-time recovery, and minimizing the risk of data loss in Kubernetes clusters.

The procedure below demonstrates how to create a Volume Snapshot Class and Volume Snapshot for the Dell provisioner.

Note

It is necessary to have the controller running to be able to create and mount the .

Note

The Dell-storage charts already create default snapshotclasses. You can list them by using the following command:

~(keystone_admin)$ kubectl get volumesnapshotclasses.snapshot.storage.k8s.io

-Powerstore is used in this example.

1. Check if the Dell-storage application is successfully applied.

   ~(keystone_admin)$ system application-list
   +--------------------------+-----------+-------------------------------------------+------------------+--------------+-----------+
   | application              | version   | manifest name                             | manifest file    | status       | progress  |
   +--------------------------+-----------+-------------------------------------------+------------------+--------------+-----------+
   | dell-storage             | 24.03-36  | dell-storage-fluxcd-manifests             | fluxcd-manifests | applied      | completed |
   +--------------------------+-----------+-------------------------------------------+------------------+--------------+-----------+

2. Check if the is created and bound.

   ~(keystone_admin)$ kubectl get -n dell-storage pvc
   NAME    STATUS   VOLUME                          CAPACITY   ACCESS MODES   STORAGECLASS         AGE
   pvol0   Bound    csi-powerstore-vol-0fca78f7dd   8Gi        RWO            csi-powerstore-nfs   5m

3. Check the available snapshot classes.

   ~(keystone_admin)$ kubectl get volumesnapshotclasses.snapshot.storage.k8s.io
   NAME                           DRIVER                       DELETIONPOLICY   AGE
   csi-powerstore-snapshot        csi-powerstore.dellemc.com   Delete           5m

4. Create the snapshot file and apply it.

   ~(keystone_admin)$ cat << EOF > ~/powerstore-volume-snapshot.yaml
   apiVersion: snapshot.storage.k8s.io/v1
   kind: VolumeSnapshot
   metadata:
   name: csi-powerstore-pvc-snapshot
   namespace: dell-storage
   spec:
   volumeSnapshotClassName: csi-powerstore-snapshot
   source:
      persistentVolumeClaimName: pvol0
   EOF
   
   ~(keystone_admin)$ kubectl apply -f ~/powerstore-volume-snapshot.yaml
   volumesnapshot.snapshot.storage.k8s.io/csi-powerstore-pvc-snapshot created

5. Confirm that the snapshot file was created successfully.

   ~(keystone_admin)$ kubectl get volumesnapshots.snapshot.storage.k8s.io
   NAME                         READYTOUSE  SOURCEPVC  SOURCESNAPSHOTCONTENT RESTORESIZE SNAPSHOTCLASS             SNAPSHOTCONTENT             CREATIONTIME  AGE
   csi-powerstore-pvc-snapshot  true        pvol0                            8Gi         csi-powerstore-snapshot   snapcontent-dcfdbb32-       13s           21s
                                                                                                                    c936-469e-aa01-abe59f574fd1