云存儲(chǔ)環(huán)境下具有高可擴(kuò)展性的存儲(chǔ)虛擬化結(jié)構(gòu)的研究.pdf

1、重慶郵電大學(xué)碩士學(xué)位論文云存儲(chǔ)環(huán)境下具有高可擴(kuò)展性的存儲(chǔ)虛擬化結(jié)構(gòu)的研究姓名：鄧永龍申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：計(jì)算機(jī)軟件與理論指導(dǎo)教師：葛君偉20110529重慶郵電大學(xué)碩士論文AbstractAbstractCloudStorageisanewconceptraisedbasedontheconceptofCloudComputingunderthebackgroundofthatthetraditionalnetworkstorage

2、architecturecannotmeettheexplosivegrowthofthecurrentglobalinformationwiththedevelopmentofInternetSincetheconceptwasraised，ithasgottenmuchfavorofglobalnumerousITcompanies，andmanyofwhichhavetheirowncloudstorageproducts，suc

3、hasEMC’SAtomsandSOonInordertoeffectivelysupportCloudStorage，storagevirtualizationtechnologyandstorageclusteringtechnologymustbeabletocopewithrapidchangesinthestoragebusinessgrowthTherefore，theresearchofstoragevirtualizat

4、ionstructurewithhighscalabilityisaresearchsubjectwithhighresearchvalueandapplicationvalueintheresearchfieldofCloudStorageThescalabilityofCloudStorageismainlyreflectedintwoaspectsofthedatasealabilityandfunctionalscalabili

5、ty，andresearchesofwhichmorefocusonthedatascalability，butarejustbeginningonthefunctionalsealabilityThefunctionalscalabilityincludestwoaspectsofcapacityscalabilityandperformancescalability，whiletheimpactofthestoragevirtual

6、izationtechnologyisoneoftheirmostimportantfactorsThatthetraditionalstoragevirtualizationstructureusesstrategiesofresourcesreservationandstaticallyallocation，notonlymakesthecloudstoragesystemhaslowstorageresourceutilizati

7、on，poorsystemscalability，butcannotmeetthebasicneedsofCloudStoragetoprovideuserswithstorageresourcesondemandTherearesomelimitationsforthetraditionalisatioofparalleloverheadtocomputationscalabilityevaluationcriteria，suchas

8、thealgorithmexecutiontimeismuchlonger，doesnotadapttothecloudcomputingenvironmentandSOonAccordingtoproblemsofthetraditionalstoragevirtualizationtechnology，the2LevelStorageVirtualizationStructure(2一LSVSM)isdesigned，whichUS

9、eSstrategiesofAllocateOn—WriteandDynamicallyAddressMapping，inordertomeetthebasicneedsofCloudStoragetodynamicallyprovideuserswithstorageresourcesondemand，improvethestorageresourceutilization，andraisethesystemscalabilityWi