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RAID over File System (RAID-F) is a highly scalable, amazingly flexible, and smart storage system that operates over existing file systems and turns independent hard drives of various sizes, makes, and models into one massive parity-protected storage pool.
Storage pools can in-turn be aggregated into a storage cloud.

RAID-F is primarily focused on Snapshot parity data protection with support for RAID4, RAID6, and RAIDX, where X is any number of tolerances desired. Parity data protection can be configured at the storage pool level and/or at the storage cloud level.
RAID-F also has experimental support for Real-Time data protection, which works well for a limited number of deployment scenarios but needs more work to support additional deployment profiles.
When used for Snapshot RAID, the Snapshot RAID protection can used independently of the Storage Pooling feature and vice versa.
Furthermore, RAID-F is not limited to hard disks as it can pool data from all accessible sources including removable media, external storage, network shares, LUNs, disk arrays, etc.
Key features:

  • The best RAID engines in the industry and the only solution to support RAID infinity
  • Data centric, not Drive/Device centric (any data, any size, anywhere)
  • Supports both Snapshot and Real-Time parity data protection
  • Supports creating and expanding a storage pool with volumes/devices containing existing data
  • Provides the greatest data safety possible and the lowest risk of data loss (*)
  • Provides massive energy saving features (**)
  • Multi-platforms support: RAID-F runs on Windows, Linux and WHS

(*) Failure beyond the tolerance level will result only in partial data loss unlike all other solutions in the market which would result in complete data loss
(**) Allows drives to spin down: only the drive/device containing the accessed data will need to be activated when reading/writing to a storage pool

Please read Understanding the limitations of Snapshot RAID for additional pertinent information.