Accusys ExaSAN A12S2-PS - Manual (Page 7)

User Guide Page vi
5. RAID Overview .............................................................................................................. 5-1
5.1 How RAID Works .................................................................................................... 5-1
5.2 Data Storage Methods .......................................................................................... 5-1
5.2.1 Data Striping ............................................................................................................................. 5-1
5.2.2 Data Mirroring .......................................................................................................................... 5-1
5.2.3 Data Parity ................................................................................................................................ 5-2
5.3 RAID Levels ............................................................................................................. 5-2
5.3.1 RAID 0: Striping ......................................................................................................................... 5-2
5.3.2 RAID 1: Mirroring ....................................................................................................................... 5-2
5.3.3 RAID 5: Independent data disks with distributed parity ................................................... 5-2
5.3.4 RAID 6: Independent data disks with two Independent parity schemes .................... 5-2
5.3.5 RAID 0+1: Striped set with Mirroring ...................................................................................... 5-3