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RAID0工作原理图解及特点分析Tags:HYPERLINK"http://www.sansky.net/article/tag/%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86"工作原理,HYPERLINK"http://www.sansky.net/article/tag/%e5%9b%be%e8%a7%a3"图解,HYPERLINK"http://www.sansky.net/article/tag/cache"CACHE,HYPERLINK"http://www.sansky.net/article/tag/io"IO,HYPERLINK"http://www.sansky.net/article/tag/raid"RAIDRAID0:StripedDiskArraywithoutFaultToleranceCharacteristics/Advantages1.RAID0implementsastripeddiskarray,thedataisbrokendownintoblocksandeachblockiswrittentoaseparatediskdrive2.I/OperformanceisgreatlyimprovedbyspreadingtheI/Oloadacrossmanychannelsanddrives3.Bestperformanceisachievedwhendataisstripedacrossmultiplecontrollerswithonlyonedrivepercontroller4.Noparitycalculationoverheadisinvolved5.Verysimpledesign6.EasytoimplementDisadvantages1.Nota“True”RAIDbecauseitisNOTfault-tolerant2.Thefailureofjustonedrivewillresultinalldatainanarraybeinglost3.ShouldneverbeusedinmissioncriticalenvironmentsRecommendedApplications1.VideoProductionandEditing2.ImageEditing3.Pre-PressApplications4.AnyapplicationrequiringhighbandwidthRAIDLevel0requiresaminimumof2drivestoimplementRAID1工作原理图解及特点分析Tags:HYPERLINK"http://www.sansky.net/article/tag/%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86"工作原理,HYPERLINK"http://www.sansky.net/article/tag/%e5%9b%be%e8%a7%a3"图解,HYPERLINK"http://www.sansky.net/article/tag/cache"CACHE,HYPERLINK"http://www.sansky.net/article/tag/io"IO,HYPERLINK"http://www.sansky.net/article/tag/raid"RAIDHYPERLINK"http://www.sansky.net/article/2007-06-19-raid1.html"\o"RAID1"RAID1:MirroringandDuplexingCharacteristics/Advantages1.OneWriteortwoReadspossiblepermirroredpair2.TwicetheReadtransactionrateofsingledisks,sameWritetransactionrateassingledisks3.100%redundancyofdatameansnorebuildisnecessaryincaseofadiskfailure,justacopytothereplacementdisk4.Transferrateperblockisequaltothatofasingledisk5.Undercertaincircumstances,RAID1cansustainmultiplesimultaneousdrivefailures6.SimplestRAIDstoragesubsystemdesignDi
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