MSI X79A User Guide - Page 80

Intel RAID, Intel, mance.

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Intel RAID Introduction The mainboard comes with the Intel RAID controller that allows you to configure SATA hard drives as RAID sets. Intel® RAID controller offers RAID level 0 (Striping), RAID level 1 (Mirroring and Duplexing), RAID level 5 (Block Interleaved Distributed Parity), RAID level 10 (A Stripe of Mirrors). RAID 0 breaks the data into blocks which are written to separate hard drives. Spreading the hard drive I/O load across independent channels greatly improves I/O performance. RAID 1 provides data redundancy by mirroring data between the hard drives and provides enhanced read performance. RAID 5 Provides data striping at the byte level and also stripe error correction information. This results in excellent performance and good fault tolerance. Level 5 is one of the most popular implementations of RAID. RAID 10 Not one of the original RAID levels, multiple RAID 1 mirrors are created, and a RAID 0 stripe is created over these. Important The least number of hard drives for RAID 0 and RAID 1 is two. The least number of hard drives for RAID 10 mode is four. And the least number of hard drives for RAID 5 mode is three. All the information/ volumes/ pictures listed in your system might differ from the illustrations in this appendix. B-2

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B-2
Intel RAID
Introduct±on
The ma±nboard comes w±th the Intel RAID controller that allows you to configure SATA
hard dr±ves as RAID sets.
Intel
®
RAID controller offers RAID level 0 (Str±p±ng), RAID level 1 (M±rror±ng and Du-
plex±ng), RAID level 5 (Block Interleaved D±str±buted Par±ty), RAID level 10 (A Str±pe of
M±rrors).
RAID 0 breaks the data ±nto blocks wh±ch are wr±tten to separate hard dr±ves. Spread-
±ng the hard dr±ve I/O load across ±ndependent channels greatly ±mproves I/O perfor-
mance.
RAID 1 prov±des data redundancy by m±rror±ng data between the hard dr±ves and pro-
v±des enhanced read performance.
RAID 5 Prov±des data str±p±ng at the byte level and also str±pe error correct±on ±nforma-
t±on. Th±s results ±n excellent performance and good fault tolerance. Level 5 ±s one of the
most popular ±mplementat±ons of RAID.
RAID 10 Not one of the or±g±nal RAID levels, mult±ple RAID 1 m±rrors are created, and a
RAID 0 str±pe ±s created over these.
Important
The least number of hard dr±ves for RAID 0 and RAID 1 ±s two. The least number of
hard dr±ves for RAID 10 mode ±s four. And the least number of hard dr±ves for RAID 5
mode ±s three.
All the ±nformat±on/ volumes/ p±ctures l±sted ±n your system m±ght d±ffer from the ±llustra-
t±ons ±n th±s append±x.