PVC Issues on Huawei

When a PVC Is Created, the PVC Is in the Pending State

Mon, 01 Jan 0001 00:00:00 +0000

Symptom

A PVC is created. After a period of time, the PVC is still in the Pending state.

Root Cause Analysis

Cause 1: A StorageClass with the specified name is not created in advance. As a result, Kubernetes cannot find the specified StorageClass name when a PVC is created.

Cause 2: The storage pool capability does not match the StorageClass capability. As a result, huawei-csi fails to select a storage pool.

Before a PVC Is Deleted, the PVC Is in the Pending State

Mon, 01 Jan 0001 00:00:00 +0000

Symptom

Before a PVC is deleted, the PVC is in the Pending state.

Root Cause Analysis

Cause 1: A StorageClass with the specified name is not created in advance. As a result, Kubernetes cannot find the specified StorageClass name when a PVC is created.

Cause 2: The storage pool capability does not match the StorageClass capability. As a result, huawei-csi fails to select a storage pool.

Cause 3: An error code (for example, 50331651) is returned by a RESTful interface of the storage. As a result, huawei-csi fails to create a PVC.

Failed to Expand the Capacity of a Generic Ephemeral Volume

Mon, 01 Jan 0001 00:00:00 +0000

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.

Failed to Expand the PVC Capacity Because the Target Capacity Exceeds the Storage Pool Capacity

Mon, 01 Jan 0001 00:00:00 +0000

Symptom

In a Kubernetes environment earlier than 1.23, PVC capacity expansion fails when the target capacity exceeds the storage pool capacity.

Root Cause Analysis

This is a known issue in the Kubernetes community. For details, see Recovering from Failure when Expanding Volumes .

Solution or Workaround

For details, see Recovering from Failure when Expanding Volumes .