ASROCK H77 Pro4-M - 2 Guide to RAID Configurations; Introduction of RAID

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2. GuidetoRAIDCongurations
2.1 Introduction of RAID
ThismotherboardadoptsIntelsouthbridgechipsetthatinte-
gratesRAIDcontrollersupportingRAID0/RAID1/IntelRapid
Storage/RAID10/RAID5functionwithfourindependentSe-
rialATA(SATA)channels.Thissectionwillintroducethebasic
knowledgeofRAID,andtheguidetocongureRAID0/RAID
1/IntelRapidStorage/RAID10/RAID5settings.
RAID
Theterm“RAID”standsfor“RedundantArrayofIndependent
Disks”,whichisamethodcombiningtwoormoreharddisk
drivesintoonelogicalunit.Foroptimalperformance,please
installidenticaldrivesofthesamemodelandcapacitywhen
creatingaRAIDset.
RAID 0 (Data Striping)
RAID0iscalleddatastripingthatoptimizestwoidenticalhard
diskdrivestoreadandwritedatainparallel,interleavedstacks.
Itwillimprovedataaccessandstoragesinceitwilldoublethe
datatransferrateofasinglediskalonewhilethetwoharddisks
performthesameworkasasingledrivebutatasustained
data transfer rate.
WARNING!!
AlthoughRAID0functioncanimprovetheaccessperformance,
it does not provide any fault tolerance. Hot-Plug any HDDs of
theRAID0Diskwillcausedatadamageordataloss.
RAID 1 (Data Mirroring)
RAID1iscalleddatamirroringthatcopiesandmaintainsan
identicalimageofdatafromonedrivetoaseconddrive.Itpro-
videsdataprotectionandincreasesfaulttolerancetotheentire
systemsincethediskarraymanagementsoftwarewilldirect
allapplicationstothesurvivingdriveasitcontainsacomplete
copyofthedataintheotherdriveifonedrivefails.