apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: nfs-aliyun-gz
provisioner: nfs.csi.k8s.io
parameters:
  share: "/csi"
  server: "28364f4a1fa-eok75.cn-guangzhou.nas.aliyuncs.com"
  #server: "172.26.12.20"
  #subDir: "${pvc.metadata.namespace}/${pvc.metadata.name}"
reclaimPolicy: Delete
#volumeBindingMode: WaitForFirstConsumer
volumeBindingMode: Immediate
allowVolumeExpansion: true
mountOptions:
#  - nolock,tcp,noresvport
  - vers=3,nolock,proto=tcp,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2,noresvport

helm upgrade --install csi-driver-nfs csi-driver-nfs/csi-driver-nfs --namespace kube-system --version v4.  
9.0 -f values.yaml