Lenovo ThinkServer - Removing the server cover

•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.
YourserversupportsthefollowingtwotypesofRAIDcongurations:
•OnboardSATAsoftwareRAIDcongurationusingtheLSISoftwareRAIDCongurationUtility
program;andRAIDmanagementusingtheMegaRAIDStorageManagerprogram
TheonboardSATAsoftwareRAIDcontrollerisintegratedintheIntelC202chiponthesystemboard.Ifyour
serverhasSATAharddiskdrivesthatareconnectedtothesystemboard,youcanusetheLSISoftware
RAIDCongurationUtilityprogramtocongureRAID.YourserversupportsonboardSATAsoftwareRAID
levels0,1,and10.YoucanalsoactivateRAIDlevel5byinstallingaThinkServerSATASoftwareRAID5
activationkey.See“InstallingorremovingtheThinkServerSATASoftwareRAID5Key”onpage102
.
YoucaninstallandusetheMegaRAIDStorageManagerprogramtomanagetheRAIDarrayandRAID
controllerinanoperatingsystemenvironment.
Fordetailedinformation,see“ConguringtheonboardSATAsoftwareRAID”onpage75
.
Chapter5.Conguringtheserver73