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Windows Server 2012 introduced the resilient file system (ReFS). Microsoft recommends ReFS for large data volumes. ReFS uses a file-system design that auto-detects data corruption and performs repairs while the volume stays online. ReFS eliminates the need to run time-consuming check-disk operations on large volumes to resolve disk errors or corruption. PowerStore supports ReFS. However, ReFS does not support TRIM/UNMAP (a Microsoft limitation).
Microsoft recommends ReFS for large data volumes. Compare the features for NTFS and ReFS before you choose ReFS. If a volume requires TRIM/UNMAP support, choose NTFS.
PowerStore protection policies support NTFS and ReFS: snapshots, thin clones, data reduction, replication, and so on.