There is problem , I can't link my pod container with persistent storage

This is config of my pod, where elastic is the name of the attached disk (same region, mounted and formatted as should), when I start the pod with this config I have this error:

Unable to mount volumes for pod elastic.etcd

I could link my container to any other type of volume either emptyDir or hostDir and all work fine. But in the case of the mounted disk not. And I really can't find some good example about persitsentDisk volumes.

id: elastic
kind: Pod
apiVersion: v1beta1
desiredState:
  manifest:
    version: v1beta1
    id: elastic
    volumes:
      - name: elastic-persistent-storage
        source:
          persistentDisk:
            pdName : elastic
            fsType : ext4
    containers:
      - name: elastic
        image: dockerfile/elasticsearch
        cpu: 1000
        volumeMounts:
          - name: elastic-persistent-storage
            mountPath: /data
        ports:
          - name: elastic
            containerPort: 9200
            hostPort: 9200
labels:
  name: elastic
  role: storage

elastic is the name of the disk in the same project, same region and attached to master node of claster. Also it is formatted and mounted.

Thanks!