A wikipedia szerint is a CSV a cluster fs (ha már az MS is fs-eli néhány helyen):
After you add a disk as a CSV, it is designated in the CSVFS format (for CSV File System). This allows the cluster and other software to differentiate the CSV storage from other NTFS or ReFS storage. Generally, CSVFS supports the same functionality as NTFS or ReFS. However, certain features are not supported. For example, in Windows Server 2012 R2, you cannot enable compression on CSV. In Windows Server 2012, you cannot enable data deduplication or compression on CSV.
Ettől szerintem az NTFS nem lesz cluster FS, de valaki benyomhatná az példák közé a wikipedia szócikkbe, hogy megnézzük, hány nap alatt tűnik el :)