存儲虛擬化數據傳輸的設計與實現(xiàn).pdf

1、華中科技大學碩士學位論文存儲虛擬化數據傳輸的設計與實現(xiàn)姓名：冉龍波申請學位級別：碩士專業(yè)：計算機軟件與理論指導教師：金海20040312華中科技大學碩士學位論文AbstractDataintensiveandhighperformancecomputingapplicationsarebeyondthecapabilityofthetraditionaldatamanagementsystem.Luckilythestoragevirt

2、ualizationtechniqueprovidesaneffectivewaytosolveitGDSSwhichmakesthebestuseofthestoragevirtualizationtechniquebyrealizingtheunifiedmanagementofthestorageresourcesdistributedinwideareaprovidesalogicalviewandreducesthemanag

3、ementcostofthesystem.TheselfadapttransfersystemisanimportantmoduleinGDSSwhichinfectstheperformanceofGDSSgreatly.Inordertoguaranteethehighperformanceandhighavailabilityitadoptsseveraltechniquessuchasselfadapttransfersepar

4、ateandparalleltransferconnectionreusebreakpointresumeandsoon.Selfadapttransfertechniquedecidesthetransfermodebythesizeofthefilesandthestatusoftheservers.Separateandparalleltransfertechniqueisusedintransferringbigfileswhi

5、leconnectionreusetechniquewhichtransfersbatchesofsmallfiles妙onlyonedataconnectiontoreducetheconnectiontimesisusedwhentransferringbatchesofsmallfiles.Ontheotherhandinordertoguaranteetheavailabilityofthesystembreakpointres

6、umetechniquethattakesadvantageoftheavailablerepetitionsintherecoveryprocessanddoublelogtechniquethatusesbothmainlogandbackuplogtomakesurethatatleastonelogisavailableatanytimeareadoptedinGDSS.Testshowsthattheperformanceof

7、GDSSincreasesIto3timesthanthatofthegeneralFTPwhentransferringbigfilesand2to10timeswhentransferingbatchesofsmallfiles.ItprovesthatthetransfersystemofGDSShasmettherequirements.Keywords:storagevirtualizationselfadapttransfe