Appendix Bsata Raid - MSI G52-74111X2 Manual

Appendix B
SATA RAID
The Southbridge integrates SATA host controller that
supports four SATA ports and RAID function for per-
formance and reliability.
SATA RAID provides support for RAID 0 (Striping), RAID
1 (Mirroring), RAID 0+1 (Striping & Mirroring). RAID 0
greatly improves h ard d is k I/O p erf or manc e by
concurrently striping data across multiple drives. RAID
1 makes sure data is not lost if a drive fails as data is
simultaneously written to two drives. Drives configured
for RAID Striping are said to form a RAID 0 set, while
drives configured for RAID Mirroring are said to form a
RAID 1 set. RAID 0+1 is implemented as a mirrored
array whose segments are RAID 0 arrays. RAID has
same fault tolerance as mirroring and reduces overhead
by striping. It needs at least four drives to form a RAID.
SATA RAID
B-1