Failed to Expand the Capacity of a Generic Ephemeral Volume

Symptom

In an environment where the Kubernetes version is earlier than 1.25, the capacity of a generic ephemeral volume of the LUN type fails to be expanded. The system displays a message indicating that the PV capacity has been expanded, but the PVC capacity fails to be updated.

Root Cause Analysis

This problem is caused by a Kubernetes bug, which has been resolved in Kubernetes 1.25.