Snapshot Management

In Kubernetes, a VolumeSnapshot is a snapshot of a volume on a storage system. The VolumeSnapshot capability provides Kubernetes users with a standard way to replicate the content of a volume at a specified point in time without creating a volume. For example, this function enables database administrators to back up the database before making changes such as editing or deleting.

This section describes how to create a VolumeSnapshot using Huawei CSI. To create a VolumeSnapshot, perform the following steps:

• Checking information about volume snapshot-dependent components
• Configuring a VolumeSnapshotClass
• Configuring a VolumeSnapshot

Prerequisites

• Compatibility and Features lists storage that support VolumeSnapshot creation. You need to search by the storage type and service type.
• For details about the Kubernetes versions that support VolumeSnapshot creation, see Table 1 .
• If you need to use volume snapshots and features associated with volume snapshots in the container environment, perform the operations in Checking Volume Snapshot-Dependent Components to check whether volume snapshot-dependent components have been deployed in your environment and check the api-versions information about volume snapshots.
• The source PVC exists, and the backend where the PVC resides supports VolumeSnapshot creation.