Metadata name in VolumeClaimTemplates

Elastic Orchestration Elastic Cloud on Kubernetes (ECK)
1

Assuming I want to make 1 nodeSet of 2-role nodes masters/data and 1 nodeSet with data nodes as follows:

  - name: master
    config:
      node.roles: ["master", "data"]
    count: 3
    volumeClaimTemplates:
    - metadata:
        name: elasticsearch-data
      spec:
        accessModes:
        - ReadWriteOnce
        resources:
          requests:
            storage: 150Gi
        storageClassName: balanced-rwo

  - name: data
    config:
      node.roles: ["data"]
    count: 3
    volumeClaimTemplates:
    - metadata:
        name: elasticsearch-data
      spec:
        accessModes:
        - ReadWriteOnce
        resources:
          requests:
            storage: 150Gi
        storageClassName: balanced-rwo

Does the value of the field volumeClaimTemplates.metadata.name (elasticsearch-data in this example) has to be the same in the 2 nodeSets? (assuming of course we want the same data in all of them)

2

The data volume claim must always be named elasticsearch-data

3

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