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Lenovo ThinkServer TS140 70A0 User Manual

Lenovo ThinkServer TS140 70A0
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Note:Themostup-to-datedevicedriversforvariousservermodelsarealwaysavailablefordownloadon
theLenovoSupportWebsiteat:
http://www.lenovo.com/drivers
Fordetailedinformation,refertothehelpinformationsystemfortheThinkServerEasyStartupprogram.
ConfiguringRAID
ThistopicprovidesinformationabouthowtoconfigureRedundantArrayofIndependentDisks(RAID)for
yourserver.
Note:TheinformationaboutconfiguringRAIDinthistopicisapplicableonlyinaWindowsenvironment.For
informationaboutconfiguringRAIDinaLinuxenvironment,contactyourLinuxsoftwareprovider.
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:
RAID0:block-levelstripingwithoutparityormirroring
SimplestripesetsarenormallyreferredtoasRAID0.RAID0usesstripingtoprovidehighdata
throughput,especiallyforlargefilesinanenvironmentthatdoesnotrequirefaulttolerance.RAID0hasno
redundancyanditprovidesimprovedperformanceandadditionalstoragewithoutfaulttolerance.Any
drivefailuredestroysthearrayandthelikelihoodoffailureincreaseswithmoredrivesinthearray.RAID
0doesnotimplementerrorchecking,soanyerrorisuncorrectable.Moredrivesinthearraymeans
higherbandwidth,butgreaterriskofdataloss.
RAID0requiresaminimumnumberoftwoharddiskdrives.
RAID1:mirroringwithoutparityorstriping
RAID1usesmirroringsothatdatawrittentoonedriveissimultaneouslywrittentoanotherdrive.Thisis
goodforsmalldatabasesorotherapplicationsthatrequiresmallcapacitybutcompletedataredundancy.
RAID1providesfaulttolerancefromdiskerrorsorfailuresandcontinuestooperateaslongasatleast
onedriveinthemirroredsetisfunctioning.Withappropriateoperatingsystemsupport,therecanbe
increasedreadperformanceandonlyaminimalwriteperformancereduction.
RAID1requiresaminimumnumberoftwoharddiskdrives.
34ThinkServerTS140HardwareMaintenanceManual

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Lenovo ThinkServer TS140 70A0 Specifications

General IconGeneral
Memory Slots4 DIMM slots
Form FactorTower
ChipsetIntel C226
ProcessorIntel Xeon E3-1200 v3 series
MemoryUp to 32GB DDR3
StorageUp to 4 x 3.5" or 2.5" HDD/SSD
RAID SupportRAID 0, 1, 10, 5
NetworkGigabit Ethernet
Network ControllerIntel I217LM
Expansion Slots1 x PCIe 3.0 x16, 1 x PCIe 2.0 x1, 1 x PCI
Power Supply280W or 450W
Operating System SupportWindows Server, Red Hat, SUSE, VMware

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