Upgrade Using Helm

This section describes how to upgrade Huawei CSI.

• To upgrade Huawei CSI from 2.x to 4.11.0, uninstall it by referring to the user guide of the earlier version and install Huawei CSI by referring to Installation Using Helm .
• To upgrade Huawei CSI from 2.x or 3.x to 4.11.0, see Upgrading from 2.x or 3.x to 4.x .
• To upgrade Huawei CSI from 4.x to 4.11.0, see Upgrading Huawei CSI on Kubernetes, OpenShift, and Tanzu .

• Some CSI 2.x versions are unavailable now. If the upgrade fails, CSI may fail to be rolled back to a version which is unavailable now.
• During the upgrade or rollback, you cannot use Huawei CSI to create new resources or mount or unmount an existing PVC.
• During the upgrade or rollback, do not uninstall the snapshot-dependent component service.
• During the upgrade or rollback, the existing resources such as PVCs, snapshots, and Pods will run properly and will not affect your service access.