User Guide

6-2
Chapter 6: RAID Conguration
6.1 Setting up RAID
The motherboard supports the following SATA RAID solutions:
• LSIMegaRAIDsoftwareRAIDCongurationUtilitywithRAID0,RAID1,andRAID10
support(forbothLinuxandWindowsOS).
• Intel
®
RapidStorageTechnologyenterpriseOptionROMUtilitywithRAID0,RAID1,
RAID10,andRAID5support(forWindowsOSonly).
6.1.1 RAID definitions
RAID0(Datastriping)optimizestwoidenticalharddiskdrivestoreadandwritedatain
parallel,interleavedstacks.Twoharddisksperformthesameworkasasingledrivebutata
sustaineddatatransferrate,doublethatofasinglediskalone,thusimprovingdataaccess
andstorage.Useoftwonewidenticalharddiskdrivesisrequiredforthissetup.
RAID1(Datamirroring)copiesandmaintainsanidenticalimageofdatafromonedrivetoa
seconddrive.Ifonedrivefails,thediskarraymanagementsoftwaredirectsallapplications
to the surviving drive as it contains a complete copy of the data in the other drive. This RAID
congurationprovidesdataprotectionandincreasesfaulttolerancetotheentiresystem.Use
twonewdrivesoruseanexistingdriveandanewdriveforthissetup.Thenewdrivemustbe
ofthesamesizeorlargerthantheexistingdrive.
RAID10isdatastripinganddatamirroringcombinedwithoutparity(redundancydata)having
tobecalculatedandwritten.WiththeRAID10congurationyougetallthebenetsofboth
RAID0andRAID1congurations.Usefournewharddiskdrivesoruseanexistingdriveand
three new drives for this setup.
RAID5stripesbothdataandparityinformationacrossthreeormoreharddiskdrives.Among
theadvantagesofRAID5congurationincludebetterHDDperformance,faulttolerance,and
higherstoragecapacity.TheRAID5congurationisbestsuitedfortransactionprocessing,
relationaldatabaseapplications,enterpriseresourceplanning,andotherbusinesssystems.
Useaminimumofthreeidenticalharddiskdrivesforthissetup.
IfyouwanttobootthesystemfromaharddiskdriveincludedinacreatedRAIDset,copy
rsttheRAIDdriverfromthesupportDVDtoaoppydiskbeforeyouinstallanoperating
systemtotheselectedharddiskdrive.