Table of Contents
1
Overview .................................................. 1
Documentation.................................................................. 3
2
RAID Benefits .................................................................. 5
In This Chapter ................................................................. 6
RAID Overview................................................................ 8
Fault Tolerance................................................................. 8
Disk Rebuild ..................................................................... 9
Hot Spares ...................................................................... 10
Hot Swap ........................................................................ 10
Parity .............................................................................. 11
Disk Striping................................................................... 12
Disk Mirroring................................................................ 13
Disk Spanning................................................................. 14
Logical Drive.................................................................. 15
3
RAID Levels............................................ 17
RAID 0 ........................................................................... 19
RAID 1 ........................................................................... 20
RAID 3 ........................................................................... 21
RAID 5 ........................................................................... 23
RAID 10 ......................................................................... 24
RAID 30 ......................................................................... 25
RAID 50 ......................................................................... 26
Preface
iii