Unable to Mount Persistent Volume Claims (PVCs) - iSCSI Login Failure

Issue

• Applications are unable to add new or existing Persistent Volume Claims (PVCs). The pods using these PVCs are stuck in the ContainerCreating state, and the following error message is observed in the pod description:

  MountVolume.MountDevice failed for volume "<pvc-name>" : rpc error: code = Internal desc = rpc error: code = Internal desc = failed to stage volume: iSCSI login failed