Lenovo ThinkServer TS440 User Manual Page 70
- Page / 196
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
Rated. / 5. Based on customer reviews
•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.
•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.
RAIDforyourserver
ThistopicprovidesinformationabouttheRAIDsupportedbyyourserver.
58ThinkServerTS440UserGuide
- ThinkServerTS440 1
- UserGuide 1
- •“Safetyinformation”onpageiii 2
- •AppendixA“Notices”onpage171 2
- Contents 3
- Safetyinformation 5
- ThinkServerTS440UserGuide 10
- ©CopyrightLenovo2013,2014 11
- Productsthatarenotassessed 12
- Chapter1.Generalinformation 13
- Serverdocumentation 14
- Chapter1.Generalinformation3 15
- 4ThinkServerTS440UserGuide 16
- Chapter2.Serversetuproadmap 17
- 6ThinkServerTS440UserGuide 18
- Chapter3.Productoverview 19
- Chapter3.Productoverview9 21
- Specifications 23
- Software 23
- ThinkServerEasyStartup 23
- BIOSupdateutilities 24
- RAIDconfigurationutilities 24
- Diagnosticprograms 24
- Locations 24
- MT-M XXXX -XXX 25
- S/N XXXXXXX 25
- Frontviewoftheserver 26
- Frontpanel 28
- Rearviewoftheserver 29
- 18ThinkServerTS440UserGuide 30
- Serverlocks 32
- .Productoverview21 33
- Servercomponents 35
- 24ThinkServerTS440UserGuide 36
- .Productoverview25 37
- 26ThinkServerTS440UserGuide 38
- .Productoverview27 39
- 28ThinkServerTS440UserGuide 40
- RAIDcard 41
- Port03TR500keyconnector 42
- Ports7-4 43
- Ports3-0 43
- 1.Youneedto 44
- Connectingthecables 47
- Systemboardcomponents 50
- .Productoverview39 51
- 27Serialconnector 54
- 28PCIcardslot(PCIslot4) 54
- 44ThinkServerTS440UserGuide 56
- Turningofftheserver 57
- Turningontheserver 57
- 46ThinkServerTS440UserGuide 58
- Chapter5.Configuringtheserver 59
- Mainmenu 60
- Devicesmenu 60
- Advancedmenu 60
- Powermenu 61
- Securitymenu 61
- Startupmenu 62
- Exitmenu 62
- Settingthesystemdateandtime 63
- Usingpasswords 63
- ConfiguringtheTPMfunction 64
- Selectingastartupdevice 64
- ExitingtheSetupUtilityprogram 65
- UpdatingorrecoveringtheBIOS 65
- ConfiguringRAID 69
- AboutRAID 69
- RAIDforyourserver 70
- CreatingRAIDvolumes 72
- DeletingRAIDvolumes 72
- Resettingdiskstonon-RAID 72
- Updatingthefirmware 74
- 64ThinkServerTS440UserGuide 76
- Guidelines 77
- Precautions 77
- Systemreliabilityguidelines 78
- Removingtheservercover 79
- 70ThinkServerTS440UserGuide 82
- 2onthechassisisinthecentral 84
- 1inthesmall 85
- Memorymoduleinstallationrules 86
- Installingamemorymodule 87
- Removingamemorymodule 89
- InstallingtheEthernetcard 90
- RemovingtheEthernetcard 93
- InstallingtheRAIDcard 95
- RemovingtheRAIDcard 95
- AdvancedRAID 96
- InstallingtheTR500key 97
- RemovingtheTR500Key 98
- InstallingtheTR700Battery 100
- RemovingtheTR700Battery 101
- 1topivotthe 108
- Figure59.RemovingtheRDXdrive 117
- 2totheUSB2.0 118
- 110ThinkServerTS440UserGuide 122
- 114ThinkServerTS440UserGuide 126
- 116ThinkServerTS440UserGuide 128
- 120ThinkServerTS440UserGuide 132
- 1inthedirectionas 137
- 3.Then,carefullyliftthe 140
- Replacingthefrontsystemfan1 156
- 1arealignedwiththe 157
- Replacingtherearsystemfan 158
- Replacingthemicroprocessor 163
- Figure109.Donottouchthepins 166
- 4ofthemicroprocessorsocket 167
- Completingthepartsreplacement 169
- Figure114.Cablerouting 170
- Updatingtheserverconfiguration 172
- Troubleshootingprocedure 173
- Usingadiagnosticprogram 173
- Basictroubleshootingtables 174
- Opticaldriveproblems 175
- Hard-disk-driveproblems 176
- Memorymoduleproblems 177
- 166ThinkServerTS440UserGuide 178
- Informationresources 179
- Usingthedocumentation 179
- ThinkServerWebsite 179
- LenovoSupportWebsite 179
- Helpandservice 180
- Beforeyoucall 180
- Callingforservice 180
- Usingotherservices 181
- Purchasingadditionalservices 181
- 170ThinkServerTS440UserGuide 182
- AppendixA.Notices 183
- Trademarks 184
- Importantnotes 184
- Recyclinginformation 184
- Batteryreturnprogram 185
- Particulatecontamination 186
- ImportantWEEEinformation 186
- AppendixA.Notices175 187
- AppendixA.Notices177 189
- Eurasiancompliancemark 190
- 180ThinkServerTS440UserGuide 192
- 182ThinkServerTS440UserGuide 194
Related products and manuals for Computer hardware Lenovo ThinkServer TS440
(118 pages)
(124 pages)© 2020, manymanuals.com. All rights reserved. | 0.727 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comments to this Manuals