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•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.
ConguringRAIDusingtheThinkServerEasyStartupprogram
TheThinkServerEasyStartupprogramsimpliestheprocessofconguringsupportedRAIDandinstalling
supportedWindowsandLinuxoperatingsystemsanddevicedriversonyourserver.Theuserguideforthe
programcanbeaccesseddirectlyfromtheprograminterface.
TheThinkServerEasyStartupprogramhasthefollowingfeaturesforRAIDconguration:
•ForusewithallsupportedRAIDcontrollers
•AutomaticallydetectshardwareandlistsallsupportedRAIDcongurations
•Conguresoneormorediskarrayspercontrollerdependingonthenumberofdrivesattachedtothe
controllerandtheRAIDlevelselected
•Supportshot-sparedrives
Chapter5.Conguringtheserver65
- ThinkServer 1
- UserGuide 1
- •“Safetyinformation”onpageiii 2
- •AppendixA“Notices”onpage167 2
- Contents 3
- Safetyinformation 5
- ThinkServerUserGuide 10
- ©CopyrightLenovo2012 11
- Chapter1.Generalinformation 13
- Serverdocumentation 14
- Chapter1.Generalinformation3 15
- Chapter2.Serversetuproadmap 17
- 6ThinkServerUserGuide 18
- Chapter3.Productoverview 19
- Features 20
- Chapter3.Productoverview9 21
- Chapter3.Productoverview11 23
- Specications 24
- Software 24
- ThinkServerEasyStartup 24
- Chapter3.Productoverview13 25
- Locations 26
- .Productoverview15 27
- Frontviewoftheserver 28
- Frontpanel 31
- Diagnosticmodule 33
- SystemfanerrorLEDs 35
- .Productoverview23 35
- Rearviewoftheserver 37
- .Productoverview27 39
- Servercomponents 41
- 30ThinkServerUserGuide 42
- .Productoverview31 43
- 32ThinkServerUserGuide 44
- RAIDcard 45
- Expandercard 46
- Figure23.Expandercard 47
- Connector14Connector4 47
- Connector25Connector5 47
- Connector36Connector6 47
- .Productoverview37 49
- 18-pinpowerconnector 50
- 2Mini-SASports4-7 50
- 3Mini-SASports0-3 50
- 4Opticaldrivepowerconnector 50
- Systemboardcomponents 53
- 42ThinkServerUserGuide 54
- Systemboardjumpersandswitches 56
- Figure31.Defaultjumpersetting 57
- Systemboardswitches 58
- Chapter3.Productoverview47 59
- Figure33.Systemboardswitches 60
- Clearpasswordswitch 60
- Reservedforthemanufacturer 60
- SystemboardLEDs 61
- 2-7SystemfanerrorLEDs 62
- Turningontheserver 63
- Turningofftheserver 63
- 52ThinkServerUserGuide 64
- Chapter5.Conguringtheserver 65
- SetupUtilityprograminterface 66
- Securitymenu 67
- ServerManagementmenu 67
- Settingthesystemdateandtime 68
- Usingpasswords 69
- Selectingastartupdevice 70
- ConguringtheTPMfunction 70
- ExitingtheSetupUtilityprogram 71
- UpdatingorrecoveringtheBIOS 71
- Updating(ashing)theBIOS 72
- ConguringRAID 76
- AboutRAID 76
- Updatingthermware 79
- 68ThinkServerUserGuide 80
- Guidelines 81
- Precautions 81
- Systemreliabilityguidelines 82
- Removingtheservercover 83
- 1inthedirectionasshown 84
- Figure43.Removingtheleftcage 91
- Memorymoduleinstallationrules 92
- Installingamemorymodule 96
- Removingamemorymodule 97
- InstallinganEthernetcard 98
- RemovinganEthernetcard 101
- AdvancedRAID 103
- RemovingtheTR500Key 104
- Figure58.RemovingtheTR500Key 105
- InstallingtheTR700Battery 106
- RemovingtheTR700Battery 107
- Installingtheexpandercard 109
- Removingtheexpandercard 111
- InstallingtheTMMPremium 113
- RemovingtheTMMPremium 114
- InstallingtheTPM 116
- RemovingtheTPM 117
- Figure67.RemovingtheTPM 119
- 1inthedirectionas 122
- Figure73.Openingthehandles 126
- Figure75.Donottouchthepins 127
- 4ofthemicroprocessorsocket 128
- Replacingthemicroprocessor 129
- Figure79.Openingthehandles 130
- Figure82.Donottouchthepins 132
- 124ThinkServerUserGuide 136
- 128ThinkServerUserGuide 140
- 1onthechassisarealigned 144
- 2onthechassis 144
- ReplacingtheRAIDcard 151
- Figure107.RemovingtheRAIDcard 152
- Replacingthefrontpanelboard 153
- Replacingthediagnosticmodule 157
- Replacingasystemfan 160
- Completingthepartsreplacement 164
- Figure121.Cablerouting 165
- Updatingtheserverconguration 167
- 156ThinkServerUserGuide 168
- Troubleshootingprocedure 169
- Viewingthesystemeventlog 169
- Basictroubleshootingtables 170
- Opticaldriveproblems 170
- Harddiskdriveproblems 171
- Memorymoduleproblems 172
- 162ThinkServerUserGuide 174
- Informationresources 175
- Usingthedocumentation 175
- ThinkServerWebsite 175
- LenovoSupportWebsite 175
- Helpandservice 176
- Beforeyoucall 176
- Callingforservice 176
- Usingotherservices 177
- Purchasingadditionalservices 177
- 166ThinkServerUserGuide 178
- AppendixA.Notices 179
- Trademarks 180
- Importantnotes 180
- Recyclinginformation 180
- Batteryreturnprogram 181
- Particulatecontamination 182
- AppendixA.Notices171 183
- AppendixA.Notices173 185
- Exportclassicationnotice 186
- Electronicemissionnotices 186
- AppendixA.Notices175 187
- ENERGYSTARmodelinformation 188
- 178ThinkServerUserGuide 190
- 180ThinkServerUserGuide 192
- 182ThinkServerUserGuide 194
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