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1、ThefollowingpaperwasoriginallypublishedintheProceedingsoftheThirdUSENIXConferenceonObject-OrientedTechnologiesandSystemsPortland,Oregon,June1997Frigate:AnObject-OrientedFileSystemforOrdinaryUsersTedH.Kim,GeraldJ.PopekDepartmentofComputerScienceUniversityofCalifornia,LosAngelesF
2、ormoreinformationaboutUSENIXAssociationcontact:1.Phone:510528-86492.FAX:510548-57383.Email:office@usenix.org4.WWWURL:http://www.usenix.orgFrigate:AnObject-OrientedFileSystemforOrdinaryUsersyTedH.KimGeraldJ.PopekDepartmentofComputerScienceUniversityofCalifornia,LosAngelesAbstra
3、ctelsethatyourextensionoftheoperatingsystemisnottoriskyisnotalwayseasy.DistributionofVendorscannotprovidealltheoperatingsystemmodi cationsmayencountersimilartrustproblemsservicesthatusersdemand.Asaresult,therehasandbelimitedbylicenserestrictions.Compatib-beenapersistentdesireto
4、makeoperatingsystemsilitybetweenindependentlywrittenextensionsandmore
exibleandcustomizable.Itisnaturalthattheabilitytofurthermodifythemarealsopotentialobject-orientedtechnologywouldcometobearonproblems.thisarea.However,manysolutionshavebeendisap-Thelongstandingdesiretomakeoper
5、atingsys-pointingwhenitcomestoeaseofuse.temsmore
exibleandcustomizableledtovariousThispaperdescribesthedesignandimplementa-architecturalinnovations,includingloadabledevicetionofFrigate,anobject-oriented lesystem.Thedrivers,streams[42],vnodes[28]andmicro-kernels.goalofFrigateist
6、oprovideamodular,extensibleAlloftheseideaswereaimed,atleastinpart,atframework.Theframeworkallowsnewextensionsprovidingextensibility.Itisnaturalthatobject-tobeplugged-in"onthe
y.Frigate'sfocusdi ersorientedtechnology,withitsthemesofmodularex-frommostother lesystemdesignsinthati
7、tistar-tensibility,wouldeventuallycometobeappliedtogetedforusebyordinaryusersratherthanbysoph-thisproblem.isticatedoperatingsystemgurus.Thus,easeofuseMostattemptsatapplyingobject-orientedtechno-isaveryimportantconcerninthedesign.Frigateislogytooperatingsystemsareattemptstointer
8、nallyfullyimplementedandsupportsasetofexample lerestru
