Lenovo ThinkServer TS440 Manual de usuario Pagina 69

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ViewageneralintroductiontoyourThinkServerservermodelandthespecificserverconfiguration
information.
ViewgeneralguidanceonhowtousetheThinkServerEasyStartupDVD.
Downloadtherequireddevicedriverstoaremovablestoragedevicesothatyoucaneasilygetthe
driversforserverconfigurationwhenyouneedthem,especiallywhenyoufinishinstallinganoperating
systemwithoutusingtheThinkServerEasyStartupDVDandneedappropriatedevicedriverstoconfigure
yourserver.
InstalltherequireddevicedriversdirectlyontheserveronwhichyouarerunningtheThinkServer
EasyStartupDVD.
ViewinformationaboutallservermodelssupportedbytheThinkServerEasyStartupprogramand
informationaboutthedevicedriversforeachservermodel,includingthedriverversionsanddriver
locationsintherootdirectoryoftheThinkServerEasyStartupDVD.
Note:Themostup-to-datedevicedriversforvariousservermodelsarealwaysavailablefordownloadon
theLenovoSupportWebsiteat:
http://www.lenovo.com/drivers
ConfiguringRAID
ThistopicprovidesinformationaboutRAIDandtheutilityprogramsthatareavailableforyoutoconfigure
RAID.
Thistopiccontainsthefollowingitems:
AboutRAID”onpage57
“RAIDforyourserver”onpage58
“ConfiguringthesystemBIOStoenableonboardSATARAIDfunctionality”onpage59
“ConfiguringtheadvancedSATAorSAShardwareRAID”onpage61
AboutRAID
RAID,anacronymforRedundantArrayofIndependentDisks,isatechnologythatprovidesincreased
storagefunctionsandreliabilitythroughredundancy.Thisisachievedbycombiningmultipleharddiskdrives
intoalogicalunit,wheredataisdistributedacrossthedrivesinoneofseveralwayscalledRAIDlevels.
WhenagroupofindependentphysicalharddiskdrivesaresetuptouseRAIDtechnology,theyareina
RAIDarray.Thisarraydistributesdataacrossmultipleharddiskdrives,butthearrayappearstothehost
serverasonesinglestorageunit.CreatingandusingRAIDarraysprovideshighperformance,suchasthe
expeditedI/Operformance,becauseseveraldrivescanbeaccessedsimultaneously.
RAIDdrivegroupsalsoimprovedatastoragereliabilityandfaulttolerancecomparedtosingle-drivestorage
systems.Datalossresultingfromadrivefailurecanbepreventedbyreconstructingmissingdatafromthe
remainingdrives.
ThefollowinglistdescribessomeofthemostcommonlyusedRAIDlevels:
Chapter5.Configuringtheserver57
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