Lenovo ThinkServer TS140 - Creating Raid Volumes

•RAID5:block-levelstripingwithdistributedparity
RAID5usesdiskstripingandparitydataacrossalldrives(distributedparity)toprovidehighdata
throughput,especiallyforsmallrandomaccess.RAID5distributesparityalongwiththedataandrequires
alldrivesbutonetobepresenttooperate;drivefailurerequiresreplacement,butthearrayisnot
destroyedbyasingledrivefailure.Upondrivefailure,anysubsequentreadoperationscanbecalculated
fromthedistributedparitysothatthedrivefailureismaskedfromtheenduser.Thearraywillhavedata
lossintheeventofaseconddrivefailureandisvulnerableuntilthedatathatwasonthefailingdriveis
rebuiltontoareplacementdrive.Asingledrivefailureinthesetwillresultinreducedperformanceof
theentiresetuntilthefailingdrivehasbeenreplacedandrebuilt.
RAID5requiresaminimumnumberofthreeharddiskdrives.
•RAID10:acombinationofRAID0andRAID1
RAID10consistsofstripeddataacrossmirroredspans.ARAID10drivegroupisaspanneddrive
groupthatcreatesastripedsetfromaseriesofmirroreddrives.RAID10allowsamaximumofeight
spans.YoumustuseanevennumberofdrivesineachRAIDvirtualdriveinthespan.TheRAID1
virtualdrivesmusthavethesamestripesize.RAID10provideshighdatathroughputandcompletedata
redundancybutusesalargernumberofspans.
RAID10requiresaminimumnumberoffourharddiskdrivesandalsorequiresanevennumberofdrives,
forexample,sixharddiskdrivesoreightharddiskdrives.
ConfiguringthesystemBIOStoenableonboardSATARAIDfunctionality
ThissectiondescribeshowtoconfigurethesystemBIOStoenableonboardSATARAIDfunctionality.
Note:Usethearrowkeysonthekeyboardtomakeselections.
ToenableSATARAIDfunctionality,dothefollowing:
1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage19.
2.SelectDevices➙ATADriveSetup.
3.SelectConfigureSATAasandpressEnter.
4.SelectRAIDModeandpressEnter.
5.PressF10tosavechangesandexittheSetupUtilityprogram.
CreatingRAIDvolumes
ThissectiondescribeshowtousetheIntelRapidStorageTechnologyenterpriseoptionROMconfiguration
utilitytocreateRAIDvolumes.
TocreateRAIDvolumes,dothefollowing:
1.PressCtrl+IwhenpromptedtoentertheIntelRapidStorageTechnologyenterpriseoptionROM
configurationutilityduringsystemstartup.
2.UsetheupanddownarrowkeystoselectCreateRAIDVolumeandpressEnter.
3.TypeaproperRAIDvolumenameintheNamefieldandpressTab.
4.UsethearrowkeystoselectaRAIDlevelintheRAIDLevelfieldandpressTab.
5.Ifappropriate,usethearrowkeystoselectastripesizeintheStripeSizefieldandpressTab.
6.TypeavolumesizeintheCapacityfieldandpressTab.
7.PressEntertoinitiatevolumecreation.
8.Whenprompted,pressYtoacceptthewarningmessageandcreatethevolume.
9.Ifdesired,returntostep2tocreateadditionalRAIDvolumes.
10.Whenfinished,selectExitandpressEnter.
Chapter5.Configuringtheserver31