флеш диск

Композиција

Не постоји механички уређај у флеш диску, који је изузетно отпоран на ударце. Поред тога, флеш диск такође има карактеристике отпорности на влагу, антимагнетног, отпорног на високе и ниске температуре (-40°Ц~+70°Ц), и има добру сигурност.

TheflashdrivesupportsUSB,IEEE1394,E-SATAandotherinterfaces.ItcanbedirectlyinsertedintotheUSBinterfaceofthecomputerorconnectedtothecomputerthroughaUSBtransfercable(withA-TypePlugandA-TypeReceptacle).

Функција

Flashdiskhastwomainpurposes:First,itcanbeusedtoexchangefileslargerthan1.44MBbetweencomputersthatarenotconnectedtotheInternet.Forexample,betweenworkandwork,Exchangefilesbetweencomputersbetweenunitsandfamiliesandbetweenindividuals.Withaflashdrive,youcantakehomeworkthathasnotbeencompletedatyourunitandcontinuetodoit.Withaflashdrive,youcanbringlargedesignfilestoyourcustomers.Withaflashdrive,youcandownloadpicturesorimagesdownloadedfromthebroadbandnetworkatthecompany.TheMP3fileistakinghome.Second,itcanbeusedtoreplacethefloppydriveonalaptop.Businesspeoplewhooftentravelwithalaptophaveaheadacheabouttheweightofthelaptop,andthefloppydriveoccupiesalargepartofit.Withflashdrives,youcanexchangefiledatawithcustomersanytimeandanywhere,andsaygoodbyetofloppydrivesfromnowon.Thismakesthebusinesstripeasyandpleasant,anddoublestheefficiencyofmobileoffice.

Животни век

Флешдиск се може обрисати најмање 1,000,000 пута.

Подаци на флеш диску се могу чувати најмање 10 година.

Calculatedaccordingtotheconfigurationofa4TBcapacityall-flasharrayandthemostcommonfive-yearfixedassetdepreciationcalculation:

Asinglearraywith4TBcapacity,totalWritetimes5,000timesTotalwritecapacitytimes4TBx5,00020PB
5AnnualassetdepreciationWritespersecond20PB/5/365/24/3600133MB
Databaseenvironment8KBWriteperformance133MB/8KB16,600IOPS

thisThismeansthatusersneedtomaintain16,600IOPSpersecondforfiveyears,notthepeak,buttheaverageIOPS.Basedonuseraverage<0.7MB/sandmaximum30MS/sreadandwriteIO,theservicelifeofa4TBflashmemorycanreachnearly1,000years.

Intheory,acomputercanconnectto127flashdrivesatthesametime,butingeneral,becausethedriveletteruses26EnglishlettersandtheexistingdrivetakesupseveralEnglishletters,itcanconnectupto23Aflashdrive(exceptA,B,C)andrequirestheassistanceofUSBHUB.

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