Managing Storage Backends Using kubectl

CSI storage backends are implemented based on Kubernetes custom resources (CRDs). In addition to using the oceanctl tool, you can also run kubectl commands to manage storage backend resources. Storage backends involve the following two types of CRD resources:

• StorageBackendClaim (sbc for short): namespace-level resource, which indicates the user’s claim to a storage backend. You can create this resource to trigger the CSI controller to automatically connect the storage backend.
• StorageBackendContent (sbct for short): cluster-level resource, which is automatically created by the CSI controller after a StorageBackendClaim is successfully bound. It indicates the actual storage backend instance in the cluster. You should not directly create or modify this resource.

• Before using kubectl to manage storage backends, ensure that the CSI plug-in has been installed and the CRD has been correctly registered with the cluster.
• StorageBackendContent is automatically managed by the controller. Do not directly create or manually modify it. Otherwise, the storage backend may be abnormal.
• Do not delete a storage backend when a volume management operation is being performed on it.