MSI H67MS User Guide - Page 66

Intel RAID, Supports Hot-plug-n-play feature., Intel, rors , 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. SATA hard drives deliver blistering transfer speeds up to 3 Gb/s. Serial ATA uses long, thin cables, making it easier to connect your drive and improving the airflow inside your PC. The most outstanding features are: 1. Supports 3 Gb/s or 6 Gb/s transfers with CRC error checking. 2. Supports Hot-plug-n-play feature. 3. Data handling optimizations including tagged command queuing, elevator seek and packet chain command. 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) , Intel® Matrix Storage Technology and Intel® Rapid Recover Technology. 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. Intel® Matrix RAID Technology is the advanced ability for two RAID volumes to share the combined space of two hard drives being used in unison. Intel® Rapid Recover Technology utilizes RAID 1 functionality to copy data from a designated Master drive to a designated Recovery drive. The size of the Master drive must be less than or equal to the size of the Recovery drive. When a Recovery volume is created, complete capacity of the Master drive will be used as the Master volume. Only one Recovery Volume can exist on a system. There are 2 methods of updating the data on the Master to the Recovery drive. They are Continuous Update Policy and On Request Update Policy. Important The least number of hard drives for RAID 0, RAID 1, Recovery or Matrix mode is 2. The least number of hard drives for RAID 10 mode is 4. And the least number of hard drives for RAID 5 mode is 3. 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.
SATA hard dr±ves del±ver bl±ster±ng transfer speeds up to 3 Gb/s. Ser±al ATA uses long,
th±n cables, mak±ng ±t eas±er to connect your dr±ve and ±mprov±ng the a±rflow ±ns±de your
PC. The most outstand±ng features are:
Supports 3 Gb/s or 6 Gb/s transfers w±th CRC error check±ng.
Supports Hot-plug-n-play feature.
Data handl±ng opt±m±zat±ons ±nclud±ng tagged command queu±ng, elevator seek and
packet cha±n command.
Intel
®
RAID controller offers RAID level 0 (Str±p±ng), RAID level 1 (M±rror±ng and Duplex-
±ng), RAID level 5 (Block Interleaved D±str±buted Par±ty), RAID level 10 (A Str±pe of M±r-
rors) , Intel
®
Matr±x Storage Technology and Intel
®
Rap±d Recover Technology.
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.
Intel
®
Matr±x RAID Technology ±s the advanced ab±l±ty for two RAID volumes to share the
comb±ned space of two hard dr±ves be±ng used ±n un±son.
Intel
®
Rap±d Recover Technology ut±l±zes RAID 1 funct±onal±ty to copy data from a des-
±gnated Master dr±ve to a des±gnated Recovery dr±ve. The s±ze of the Master dr±ve must
be less than or equal to the s±ze of the Recovery dr±ve. When a Recovery volume ±s
created, complete capac±ty of the Master dr±ve w±ll be used as the Master volume. Only
one Recovery Volume can ex±st on a system. There are 2 methods of updat±ng the
data on the Master to the Recovery dr±ve. They are Cont±nuous Update Pol±cy and On
Request Update Pol±cy.
Important
The least number of hard dr±ves for RAID 0, RAID 1, Recovery or Matr±x mode ±s 2. The
least number of hard dr±ves for RAID 10 mode ±s 4. And the least number of hard dr±ves
for RAID 5 mode ±s 3.
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.
1.
2.
3.