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•RAID0:block-levelstripingwithoutparityormirroring
SimplestripesetsarenormallyreferredtoasRAID0.RAID0usesstripingtoprovidehighdata
throughput,especiallyforlargelesinanenvironmentthatdoesnotrequirefaulttolerance.RAID0hasno
redundancyanditprovidesimprovedperformanceandadditionalstoragewithoutfaulttolerance.Any
drivefailuredestroysthearrayandthelikelihoodoffailureincreaseswithmoredrivesinthearray.RAID
0doesnotimplementerrorchecking,soanyerrorisuncorrectable.Moredrivesinthearraymeans
higherbandwidth,butgreaterriskofdataloss.
RAID0requiresaminimumnumberoftwoharddiskdrives.
•RAID1:mirroringwithoutparityorstriping
RAID1usesmirroringsothatdatawrittentoonedriveissimultaneouslywrittentoanotherdrive.Thisis
goodforsmalldatabasesorotherapplicationsthatrequiresmallcapacitybutcompletedataredundancy.
RAID1providesfaulttolerancefromdiskerrorsorfailuresandcontinuestooperateaslongasatleast
onedriveinthemirroredsetisfunctioning.Withappropriateoperatingsystemsupport,therecanbe
increasedreadperformanceandonlyaminimalwriteperformancereduction.
RAID1requiresaminimumnumberoftwoharddiskdrives.
•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.
•RAID50:acombinationofRAID0andRAID5
RAID50usesdistributedparityanddiskstriping.ARAID50drivegroupisaspanneddrivegroupin
whichdataisstripedacrossmultipleRAID5drivegroups.RAID50worksbestwithdatathatrequires
highreliability,highrequestrates,highdatatransfers,andmedium-to-largecapacity.
Note:HavingvirtualdrivesofdifferentRAIDlevels,suchasRAID0andRAID5,inthesamedrivegroupis
notallowed.Forexample,ifanexistingRAID5virtualdriveiscreatedoutofpartialspaceinanarray,the
nextvirtualdriveinthearrayhastobeRAID5only.
RAID50requiresaminimumnumberofsixharddiskdrives.
FordetailedinformationaboutRAID,referto“IntroductiontoRAID”intheMegaRAIDSASSoftwareUser
GuideonthedocumentationDVDthatcomeswithyourserver.
Chapter5.Conguringtheserver57
- ThinkServerRD330 1
- UserGuide 1
- •“Safetyinformation”onpageiii 2
- •AppendixA“Notices”onpage163 2
- Contents 3
- Safetyinformation 5
- ThinkServerRD330UserGuide 10
- ©CopyrightLenovo2012 11
- Chapter1.Generalinformation 13
- Serverdocumentation 14
- Chapter1.Generalinformation3 15
- Chapter2.Serversetuproadmap 17
- 6ThinkServerRD330UserGuide 18
- Chapter3.Productoverview 19
- Chapter3.Productoverview9 21
- Specications 23
- Software 23
- ThinkServerEasyStartup 23
- Locations 25
- MT-M XXXX- XXX 26
- S/N XXXXXXX 26
- Frontpanel 29
- IntelligentDiagnosticsModule 31
- Rearviewoftheserver 32
- Servercomponents 34
- .Productoverview23 35
- RAIDcard 37
- Ports7-4 39
- Ports3-0 39
- 3ononeendofthe 42
- 4ontheotherend 42
- Systemboardcomponents 43
- Systemboardjumpersandswitches 46
- .Productoverview35 47
- Table1.Systemjumpers 48
- Chapter3.Productoverview37 49
- Figure25.Switches 50
- Table2.Switches 50
- Clearpasswordswitch 50
- Reservedforthemanufacturer 50
- SystemboardLEDs 51
- 2-7SystemfanerrorLEDs 53
- Chapter3.Productoverview41 53
- 42ThinkServerRD330UserGuide 54
- Turningontheserver 55
- Turningofftheserver 55
- Chapter5.Conguringtheserver 57
- SetupUtilityprograminterface 58
- Securitymenu 59
- ServerManagementmenu 59
- Settingthesystemdateandtime 60
- Usingpasswords 61
- Selectingastartupdevice 62
- ConguringtheTPMfunction 62
- ExitingtheSetupUtilityprogram 63
- UpdatingorrecoveringtheBIOS 63
- Updating(ashing)theBIOS 64
- ConguringRAID 68
- AboutRAID 68
- RAIDarraystatus 70
- Initializingavirtualdrive 73
- Settingahot-sparedrive 73
- Rebuildingaphysicaldrive 74
- Runningaconsistencycheck 74
- Updatingthermware 76
- 66ThinkServerRD330UserGuide 78
- Guidelines 79
- Precautions 79
- Systemreliabilityguidelines 81
- Removingtheservercover 81
- 1inthedirectionasshown 82
- Removingthecoolingshroud 85
- Reinstallingthecoolingshroud 86
- Memorymoduleinstallationrules 87
- Installingamemorymodule 90
- Removingamemorymodule 92
- InstallingtheEthernetcard 93
- RemovingtheEthernetcard 95
- InstallingtheRAIDcard 97
- RemovingtheRAIDcard 100
- AdvancedRAID 101
- RemovingtheTR500Key 103
- Figure48.RemovingtheTR500Key 104
- 1onthebottom 106
- RemovingtheTR300Key 109
- Figure52.RemovingtheTR300Key 111
- InstallingtheTMMPremium 112
- RemovingtheTMMPremium 113
- Figure55.InstallingtheTPM 116
- Figure56.RemovingtheTPM 118
- Figure64.Donottouchthepins 128
- 4ofthemicroprocessorsocket 129
- Replacingthemicroprocessor 130
- Figure69.Donottouchthepins 133
- 124ThinkServerRD330UserGuide 136
- 134ThinkServerRD330UserGuide 146
- Figure86.Removingthebackplane 147
- 136ThinkServerRD330UserGuide 148
- Figure88.Securingthebackplane 149
- Figure89.RemovingtheIDM 150
- Replacingasystemfan 151
- Figure91.Removingthesystemfan 152
- Replacingthefrontpanelboard 153
- Completingthepartsreplacement 159
- Updatingtheserverconguration 163
- 152ThinkServerRD330UserGuide 164
- Troubleshootingprocedure 165
- Viewingthesystemeventlog 165
- Basictroubleshootingtables 166
- Opticaldriveproblems 166
- Harddiskdriveproblems 167
- Memorymoduleproblems 168
- 158ThinkServerRD330UserGuide 170
- Informationresources 171
- Usingthedocumentation 171
- ThinkServerWebsite 171
- LenovoSupportWebsite 171
- Helpandservice 172
- Beforeyoucall 172
- Callingforservice 172
- Usingotherservices 173
- Purchasingadditionalservices 173
- 162ThinkServerRD330UserGuide 174
- AppendixA.Notices 175
- Trademarks 176
- Importantnotes 176
- Recyclinginformation 176
- Batteryreturnprogram 177
- Particulatecontamination 178
- AppendixA.Notices167 179
- AppendixA.Notices169 181
- Exportclassicationnotice 182
- Electronicemissionnotices 182
- AppendixA.Notices171 183
- ENERGYSTARmodelinformation 184
- 174ThinkServerRD330UserGuide 186
- 176ThinkServerRD330UserGuide 188
- 178ThinkServerRD330UserGuide 190
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