CreateEmptyVolume ...

CreateVolumeByBranch ...

CreateVolumeFromSnapshot ...

DeleteBlob ...

DeleteBranch deletes a branch identified by a branch's tip snapshot ID.

DeleteVolume ...

DeleteVolumeSet ...

DownloadBlobDiff is the orchestrator of blob download.

Snapshot takes a snapshot of a volume by ask storage layer to take a snapshot followed by updating meta data store.

UploadBlobDiff ...