计算机网络专业英语 课件 L6-2 Text 2 The Details of Network Storage.pptx

L6-2

Lesson6NetworkStorageandCloudComputingText2TheDetailsofNetworkStorage

要点KeyPoints：专业术语DAS、NAS位置无关的网盘Enhance、improve、drop、reduceRun、carryout、performCompute、computer、computation、computational

Aclusteredfilesystemisafilesystemwhichissharedbybeingsimultaneouslymountedonmultipleservers.Thereareseveralapproachestoclustering,mostofwhichdonotemployaclusteredfilesystem(onlydirectattachedstorageforeachnode).Clusteredfilesystemscanprovidefeatureslikelocation-independentaddressing位置无关的寻址andredundancywhichimprovereliabilityorreducethecomplexityoftheotherpartsofthecluster.Parallelfilesystemsareatypeofclusteredfilesystemthatspreaddataacrossmultiplestoragenodes,usuallyforredundancyorperformance.mount（加载）指被操作系统识别，可被用户访问。simultaneous同时的synchronous同步的asynchronous异步的“同步”指在通信中使用共同的时钟approach在这里翻译成“方法”,同way、method和means等，approach起源于ap去+proach接近。

Afilehostingservice,cloudstorageservice,onlinefilestorageprovider,orcyberlockerisanInternethostingservicespecificallydesignedtohostuserfiles.Itallowsuserstouploadfilesthatcouldthenbeaccessedovertheinternetfromadifferentcomputer,tablet,smartphoneorothernetworkeddevice,bythesameuserorpossiblybyotherusers,afterapasswordorotherauthenticationisprovided.Typically,theservicesallowHTTPaccess,andsometimesFTPaccess.Relatedservicesarecontent-displayinghostingservices(i.e.videoandimage),virtualstorage,andremotebackup.Incomputing,afileserver(orfileserver)isacomputerattachedtoanetworkthathastheprimarypurposeofprovidingalocationforshareddiskaccess,i.e.sharedstorageofcomputerfiles(suchasdocuments,soundfiles,photographs,movies,images,databases,etc.)thatcanbeaccessedbytheworkstationsthatareattachedtothesamecomputernetwork.Thetermserverhighlightstheroleofthemachineintheclient–serverscheme,wherethe