RAID Levels

In March 2010 our four-year research project into RAID design and recovery methods went live. As a result, our bespoke RAID recovery system is capable of recovering and extracting data from any RAID array, regardless of the operating system, and any file system from Apple HFS to ZFS. Moreover, we are able to work with non-standard RAID levels, including multi-nested RAID, and proprietary RAID levels used by some manufacturers.

These non-standard and proprietary RAID levels include the following:

  • BeyondRAID by Data Robotics (DROBO)
  • Double Parity RAID (also known as Diagonal Parity, or RAID 6)
  • RAID Z (used by the Sun ZFS file system)
  • RAID Z2 Double Parity RAID-Z by for Sun systems’ ZFS file system
  • Drive Extender (Microsoft Windows Home Server)
  • IBM ServeRAID (Proprietary IBM controller supporting RAID 0, RAID 1, RAID 1E, RAID 5, RAID 5E, RAID 00, RAID 10, RAID 1E0 and RAID 50)
  • RAID-DP (double parity RAID by NetApp)
  • RAID-K (Kaleidescape)
  • RAID S (proprietary variant of RAID 5 adapted by EMC Corporation for their Symmetrix storage arrays)
  • RAID 5E (Enhanced RAID 5)
  • RAID 5EE (Integrates the capacity of the hot spare into the array)
  • RAID 6E (no dedicated hot-swap drive)
  • Linux MD RAID 10 (RAID 0 with redundancy)
  • RAID 0+3
  • RAID 30
  • RAID 100 (also known as RAID 10+0)
  • RAID 50 (also known as RAID 5+0)
  • RAID 51 (mirrored RAID 5 arrays)
  • RAID 60 (RAID 6 with striping)