IntroductOn - MSI Z77A-G43 GAMING User Manual

Intel RAID

Introducton

The manboard comes wth the Intel RAID controller that allows you to configure SATA
hard drves as RAID sets.
SATA hard drves delver blsterng transfer speeds up to 6 Gb/s. Seral ATA uses long,
thn cables, makng t easer to connect your drve and mprovng the arflow nsde your
PC. The most outstandng features are:
1. Supports 3 Gb/s or 6 Gb/s transfers wth CRC error checkng.
2. Supports Hot-plug-n-play feature.
3. Data handlng optmzatons ncludng tagged command queung, elevator seek and
packet chan command.
Intel RAID controller offers RAID level 0 (Strpng), RAID level 1 (Mrrorng and Duplex-
®
ng), RAID level 5 (Block Interleaved Dstrbuted Party), RAID level 10 (A Strpe of Mr-
rors) , Intel Rapd Storage Technology.
®
RAID 0 breaks the data nto blocks whch are wrtten to separate hard drves. Spread-
ng the hard drve I/O load across ndependent channels greatly mproves I/O perfor-
mance.
RAID 1 provdes data redundancy by mrrorng data between the hard drves and pro-
vdes enhanced read performance.
RAID 5 Provdes data strpng at the byte level and also strpe error correcton nforma-
ton. Ths results n excellent performance and good fault tolerance. Level 5 s one of the
most popular mplementatons of RAID.
RAID 10 Not one of the orgnal RAID levels, multple RAID 1 mrrors are created, and a
RAID 0 strpe s created over these.
Intel Rapd Storage Technology s the advanced ablty for two RAID volumes to share
®
the combned space of two hard drves beng used n unson.
Intel Rapd Storage Technology utlzes RAID 1 functonalty to copy data from a des-
®
gnated Master drve to a desgnated Recovery drve. The sze of the Master drve must
be less than or equal to the sze of the Recovery drve. When a Recovery volume s
created, complete capacty of the Master drve wll be used as the Master volume. Only
one Recovery Volume can exst on a system. There are 2 methods of updatng the
data on the Master to the Recovery drve. They are Contnuous Update Polcy and On
Request Update Polcy.
Important
The least number of hard drves for RAID 0, RAID 1, Recovery or Matrx mode s 2. The
least number of hard drves for RAID 10 mode s 4. And the least number of hard drves
for RAID 5 mode s 3.
All the nformaton/ volumes/ pctures lsted n your system mght dffer from the llustra-
tons n ths appendx.
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