Sävellys
Flash-levyssä ei ole mekaanista laitetta, joka on erittäin iskunkestävä. Lisäksi flash-asemalla on myös ominaisuudet kosteudenkestävä, antimagneettinen, korkean ja matalan lämpötilan kesto (-40°C~+70°C), ja sillä on hyvä turvallisuus ja luotettavuus.
TheflashdrivesupportsUSB,IEEE1394,E-SATAandotherinterfaces.ItcanbedirectlyinsertedintotheUSBinterfaceofthecomputerorconnectedtothecomputerthroughaUSBtransfercable(withA-TypePlugandA-TypeReceptacle).
Toiminto
Flashdiskhastwomainpurposes:First,itcanbeusedtoexchangefileslargerthan1.44MBbetweencomputersthatarenotconnectedtotheInternet.Forexample,betweenworkandwork,Exchangefilesbetweencomputersbetweenunitsandfamiliesandbetweenindividuals.Withaflashdrive,youcantakehomeworkthathasnotbeencompletedatyourunitandcontinuetodoit.Withaflashdrive,youcanbringlargedesignfilestoyourcustomers.Withaflashdrive,youcandownloadpicturesorimagesdownloadedfromthebroadbandnetworkatthecompany.TheMP3fileistakinghome.Second,itcanbeusedtoreplacethefloppydriveonalaptop.Businesspeoplewhooftentravelwithalaptophaveaheadacheabouttheweightofthelaptop,andthefloppydriveoccupiesalargepartofit.Withflashdrives,youcanexchangefiledatawithcustomersanytimeandanywhere,andsaygoodbyetofloppydrivesfromnowon.Thismakesthebusinesstripeasyandpleasant,anddoublestheefficiencyofmobileoffice.
Elinikä
Flash-asema voidaan tyhjentää vähintään 1 000 000 kertaa.
Flash-levyn tiedot voidaan säilyttää vähintään 10 vuotta.
Calculatedaccordingtotheconfigurationofa4TBcapacityall-flasharrayandthemostcommonfive-yearfixedassetdepreciationcalculation:
| Asinglearraywith4TBcapacity,totalWritetimes5,000times | Totalwritecapacitytimes | 4TBx5,000 | 20PB |
| 5Annualassetdepreciation | Writespersecond | 20PB/5/365/24/3600 | 133MB |
| Databaseenvironment8KB | Writeperformance | 133MB/8KB | 16,600IOPS |
thisThismeansthatusersneedtomaintain16,600IOPSpersecondforfiveyears,notthepeak,buttheaverageIOPS.Basedonuseraverage<0.7MB/sandmaximum30MS/sreadandwriteIO,theservicelifeofa4TBflashmemorycanreachnearly1,000years.
Intheory,acomputercanconnectto127flashdrivesatthesametime,butingeneral,becausethedriveletteruses26EnglishlettersandtheexistingdrivetakesupseveralEnglishletters,itcanconnectupto23Aflashdrive(exceptA,B,C)andrequirestheassistanceofUSBHUB.