Thecompositionofthemobileharddisk
Themobileharddiskismainlycomposedoftheshell,thecircuitboard(includingthecontrolchipandthedataandpowerinterface)andtheharddisk.Theshellisgenerallymadeofaluminumalloyorplasticmaterial,whichhasthefunctionsofcompressionresistance,anti-vibration,anti-static,anti-fall,moisture-proof,andheatdissipation;thecontrolchipcontrolstheread/writeperformanceofthemobileharddisk;thecommondatainterfacesareUSBandIEEE1394;Consideringthesize,shockresistance,powerconsumption,energysaving,etc.,2.5-inchnotebookharddrivesareusuallyselected.
Featuresofmobileharddrives
Largecapacity
Mobileharddrivescanprovideconsiderablestoragecapacityandareamorecost-effectivemobilestorageproduct.Mobileharddiskscanprovideuserswithlargerstoragecapacityandgoodportabilitywithinapricerangethatuserscanaccept.Themobileharddrivescurrentlyonthemarketcanprovide320GB,500GB,600G,640GB,900GB,1000GB(1TB),1.5TB,2TB,2.5TB,3TB,3.5TB,4TBandothercapacities,upto12TBcapacity,toacertainextentMeettheneedsofusers.Withthedevelopmentoftechnology,thecapacityofmobileharddiskswillbecomelargerandlarger,andthevolumewillbecomesmallerandsmaller.
Smallsize
MostmobileharddrivesuseUSBandIEEE1394interfaces,whichcanprovidehigherdatatransmissionspeeds.However,thedatatransmissionspeedofthemobileharddiskislimitedtoacertainextentbytheinterfacespeed,especiallyforproductswiththeUSB1.1interfacespecification,whentransmittingalargeamountofdata,itwilltestthepatienceofusers.TheUSB2.0andIEEE1394interfacesaremuchbetter.
Highspeed
MostmobileharddrivesuseUSB,IEEE1394,andeSATAinterfaces,whichcanprovidehigherdatatransferrates.However,thedatatransferrateofthemobileharddiskislimitedtoacertainextentbytheinterfacespeed,especiallyonproductswiththeUSB1.1interfacespecification,itwilltestthepatienceofuserswhentransferringlargerdata.TheUSB2.0,IEEE1394,andeSATAinterfacesaremuchbetter.ThetransferrateoftheUSB2.0interfaceis60MB/s,andthetransferrateoftheIEEE1394interfaceis50-100MB/s.Whenexchangingdatawiththehost,itonlytakesafewminutestoreadalargefileontheorderofgigabytes,whichisespeciallysuitableforvideo.Storageandexchangewithaudiodata.
Easytouse
CurrentPCsarebasicallyequippedwithUSBfunctions.Themotherboardusuallyprovides2~8USBports.SomemonitorsalsoprovideUSBadapters.Becomeanecessaryinterfaceinpersonalcomputers.USBdevicesdonotneedtoinstalldriversinmostversionsofWINDOWSoperatingsystems,andhaveatrue"plugandplay"feature,whichisflexibleandconvenienttouse.
Safeandreliable
Datasecurityhasalwaysbeenthemostconcernedissueofmobilestorageusers,anditisalsoanimportantcriterionforpeopletomeasuretheperformanceofsuchproducts.Themobileharddiskhaswonthefavorofmanyuserswithitsadvantagesofhighspeed,largecapacity,lightweightandconvenience,anditsgreateradvantageliesinthesafetyandreliabilityofitsstoreddata.Thistypeofharddiskhasasimilarstructuretothatofalaptopharddisk,andmostofthemusesilicon-oxygendisks.Thisisadiscmaterialthatisstrongerandmoredurablethanaluminumandmagnetic,andhasalargerstoragecapacityandbetterreliability,whichimprovestheintegrityofthedata.Theuseofsilicon-oxygendiskdrivesischaracterizedbyasmootherdisksurface,whicheffectivelyreducesthenumberofirregulardisksurfacesthatmayaffectdatareliabilityandintegrity.HigherdisksurfacehardnessmakesUSBharddisksveryhighReliability.
Theuseofmobileharddisk
Theuseofmobileharddiskshouldpayattentiontothefollowingissues:
1.Donotuseitforalongtime.Itisbestnottouseamobileharddiskwithgeneralmaterialsforlong-termwork.Themobileharddiskisusedtotemporarilyexchangeorstoredata,notalocalharddisk.Comparedwiththeinternalharddiskwillalwaysworkinaharshenvironment,theworkingtimeshouldbeshortenedasmuchaspossible.
2,donotdefragmentthedisk.Donotdefragmentthemobileharddisk,otherwiseitwilleasilydamagetheharddisk.Ifyoureallyneedtoorganize,themethodcanbetocopyallthedataintheentirepartition,andthencopyitback.
3.Donotmixpowersupplylines.Donotmixpowersupplycables.Duetothespecialphenomenonofthepowersupplycableofthemobileharddiskbox,thevoltageofthepowersupplycableinterfacemaybedifferent.
4.Avoidbeating.Avoidbeating,handlewithcare;payattentiontothetemperature,donotoverheat;dryandwaterproof,pullbackfirst.
Mobileharddiskpurchase
1.Mobileharddiskshell:Thematerialofthemobileharddiskshellisgenerallydividedintotwotypes:metalandplastic.Generallyspeaking,thecompressionresistanceandheatdissipationperformanceofthemetalcasingwillbebetter,whiletheplasticcasinghasrelativelymoreadvantagesintermsofshockresistanceandweight.
2.PCBboardcontrolchip:ThecontrolchiponthemobileharddiskPCBisdirectlyrelatedtothereadandwriteperformanceandstabilityoftheproduct.Atpresent,thecontrolchipismainlydividedintotwogrades:highandlow.Representativesofhigh-endcontrolchipsareCypressISD300A1/CY7C68300B/CY7C68300C,NECLiPD720133,andWangjiuPL-3507.Thecharacteristicsofthesechips:thepriceismoreexpensive,thestabilityandcompatibilityareverygood,itisthefirstchoiceofhigh-endusers.Representativesoflow-endcontrolchipsareAnguoAU6390,YangzhiALiM5642,SkyworthCL811seriesandsoon.Thecharacteristicsofthesechipsare:thestabilityanddatatransmissionperformancearerelativelypoor,buttheyaresufficienttomeetthedailyworkneeds,becauseoftheirlowprice,andtheyaremostlyusedinlow-endharddiskboxes.
3.Externalinterfaceofharddiskbox:Atpresent,themainstreaminterfaceofmobileharddiskishigh-speedUSB2.0andLiSB3.0.IEEE1394oreSATAinterfacecanbeseenonhigh-endproducts.IEEE1394interfaceisdividedintotwotypes:IEEE1394aandIEEE1394b:ThedatatransferrateoftheIEEE1394ainterfacecantheoreticallyreach400Mbit/s(50MB/s);thetransferrateoftheIEEE1394hinterfacecanreach800Mbit/s(100MB/s).Intheory,SATAcanreach3Cbit/s,whichisthedevelopmentdirectionofmobileharddisksinthefuture.
4.Quality:Therearemanyso-calledbrandmobileharddisksonthemarketthatareactuallyassembledbythedistributorsthemselves,thatistosay,themanufacturersprovidethedistributorsonlythemobileharddiskboxes,andthedealersgettheboxes.Itisimpossibletoguaranteethequalityofthisbrandedmobileharddiskafterinstallingtheharddisk.Parallelharddisksorevenrepairedharddisksarelikelytobeinstalledinmobileharddiskboxesbyprofiteersandsoldtounsuspectingconsumers.Whenpurchasingthistypeofproduct,pleaserecognizetheproduct'strademarkandanti-counterfeitingmark,andaskthedealerfortheofficialinvoiceandthreepacksofcards.Avoidbuyingfakegoods,invoicesandthree-guaranteecardsareproofofafter-salesserviceinthefuture.
Technicalparameters
Speed
Speedisanimportantindicatortomeasuretheperformanceofthemobileharddisk,whichmainlydependsonthedatatransferrateandrotationspeedoftheharddisk.
1.Datatransferrate
Thedatatransferrateoftheharddiskemphasizestheinternaltransferrate(thedatatransferratebetweentheharddiskheadandthecache),whilethemobileharddiskismoreReferstothedatatransferrateofitsinterface.Becausethemobileharddiskisconnectedtothesystemthroughanexternalinterface,thespeedofitsinterfacelimitsthedatatransferrateofthemobileharddisk.AlthoughthecurrentUSB1.1interfacecanprovide12Mbps;USB2.0interfacecanprovide480Mbps;IEEE1394ainterfacecanprovide400Mbp;IEEE1394bcanprovide800Mbpsdatatransferrate,butinactualapplications,itwillbeduetosomeobjectiveThereason(suchasthemaincontrolchipusedinthestoragedevice,whethertheproductionqualityofthecircuitboardisgood,etc.)slowsdownthetransmissionrateintheapplication.
2.Rotationspeed
Thespeedofordinaryharddisksforhomeuseisgenerally5400pm,7200rpm,etc.High-speedharddisksarenowthefirstchoicefordesktopusers;andfornotebookusers,itis4200rpm.,5400rpm,althoughsomecompanieshavereleased7200rpmnotebookharddrives,buttheyarestillrelativelyrareinthemarket.
Thereadingspeedofmainstream2.5-inchbrandmobileharddrivesisabout15-25MB/s,andthewritingspeedisabout8-15MB/s.Ifyoucopya4GBDVDmovietoamobileharddriveatawritespeedof10MB/s,itwilltakeabout6minutesand40seconds;ifyoucopya4GBDVDfromthemobileharddriveatareadspeedof20MB/sItwilltakeabout3minutesand20secondsforthemovietoarriveontheharddiskofthehostcomputer.
Powersupply
Fornotebookcomputers,whenthe2.5-inchUSBmobileharddiskisworking,theharddiskanddatainterfacearepoweredbytheUSBinterface.TheUSBinterfacecanprovide0.5Acurrent,andtheworkingcurrentofthenotebookcomputerharddiskis0.7~1A,andtherewillbenoproblemsingeneraldatacopying.However,ifthecapacityoftheharddiskislargeorthefiletobemovedislarge,itiseasytohaveinsufficientpowersupply,andiftheUSBinterfacesuppliespowertomultipleUSBdevicesatthesametime,itisalsoeasytohaveinsufficientpowersupply,causingdatalossorevenharddiskdamage.Inordertostrengthenthepowersupply,2.5-inchUSBmobileharddrivesgenerallyprovideapowercordthattakespowerfromthePS/2interfaceortheusbinterface.TheremovableharddiskneedstobeconnectedtothePS/2powercordwhenmovinglargefiles.(3.5-inchmobileharddrivesgenerallyhavetheirownexternalpowersupply,sothereisbasicallynoproblemwithpowersupply.TheIEEE1394interfacecanprovideamaximumcurrentof1.5A,sothereisnoneedforanexternalpowersupply).
Reminder:Regardingpowerproblems,undernormalcircumstances,ausbportissufficientforpowersupply.However,theremaybesituationswheretwointerfacesneedtobeconnectedatthesametime.Therefore,itisbestforuserstobuyadatacablewithtwoUSBinterfaceswhenpurchasingtoavoidinsufficientpowersupply.
Size
Currently,mobileharddrivescanbedividedintothreetypesaccordingtotheirsize:3.5-inchdesktopharddrives;2.5-inchnotebookharddrives;1.8-inchminiharddrives.Amongthem,the3.5-inchdesktopharddrivehastheadvantagesoffastspeedandlargecapacity,butitislargeinsize,heaviestandinconvenienttocarry,andbecausetheharddriveisdesignedfordesktopcomputers,ithaspoorshockresistance,butitstillhastheadvantagesofpriceandcapacity.Certainadvantages2.5-inchnotebookharddrivesarespeciallydesignedfornotebooks.Theyaresmallinsizeandweight.Theyarealsospeciallydesignedforshockresistance.Theyhavegoodshockresistanceandarecurrentlythemostwidelyusedinmobileharddrives.The1.8-inchminiharddriveisalsodesignedfornotebooks.Ithasgoodshockresistance,andthesizeandweightarethesmallestofthethree.However,itspriceishigher,anditscapacityissmaller.Itisdifficulttopopularize,anditismoresuitableforuserswithspecialneeds.
Capacity
Capacityisthestoragespaceofthemobileharddisk.In2006,themainstreamharddiskcapacityincreasedfrom160Gtoalargercapacity.Atpresent,250Gand320Gproductsarequitecost-effective.Theworld'slargestsingle-diskcapacityreaches750G,andthe320Gproductmarketisquitematureandthepriceisveryreasonable.And400Goraboveproductsarestillhigh-pricedseries,andordinaryusersrarelyconsiderit.Although160Gand250Garemainstreamcapacities,theyarelimitedbycostandactualusagerequirements.Forgeneralofficeandhomeapplications,choosing80Gorevenlower40Gcanfullymeettheneeds.
Interface
Interfacetypereferstothetypeofinterfaceusedbythemobileharddisktoconnecttothecomputersystem,nottheinterfacetypeofitsinternalharddisk.Becausethemobileharddiskneedstobeconnectedtothesystemthroughaninterface,theinterfacedeterminestheperformanceanddatatransmissionspeedoftheconnectiontothesystem.Atpresent,therearetwocommondatainterfacesformobileharddisks:USBandIEEE1394.USBisthemainstreaminterfacemethodofmobileharddisksatpresent,anditisalsoaninterfacethatalmostallcomputershave.Ithastheadvantagesofhot-swappable,unifiedstandards,andmultipleexternaldevices.USBhastwostandards:USB1.1andUSB2.0.ThetransmissionspeedofUSB2.0isupto480Mbps,whichis40timesthatofUSB1.1interface.USB2.0needsthesupportofthemotherboardandisbackwardcompatible.TheUSB2.0mobileharddiskboxofthesamebrandis30-50yuanmoreexpensivethanUSB1.1,butduetothehugedifferenceinspeed,USB2.0hasbecomethemainstreaminthemarket.
BeforetheUSB2.0standardcameout,theUSB1.1standardwasveryslow,withthefastestreadandwritespeedof1.5MB/s;whiletheIEEE1394(Firewireinterface)hadthehighestreadandwritespeed.Itisclosetoabout50MB/s,soforalongperiodoftime,FireWireissynonymouswithhigh-speedtransmission.
ButaftertheadventoftheUSB2.0standard,themaximumreadandwritespeediscloseto60MB/s,whichleavestheFirewireinterfacebehindatonce,andalmostallcomputershaveUSBconnectionports,onlyafewThecomputerhasaFireWireport,soyoudon’tneedtoconsidertheFireWireinterfacemodelwhenbuyingamobileharddrive.NewmobileharddriveshavebeguntosupporttheUSB3.0standard.WhilemaintainingcompatibilitywithUSB2.0,thetransmissionspeedofUSB3.0hasbeengreatlyimproved:themaximumtransmissionbandwidthisupto5.0Gbps,whichis640MB/s.However,ifyouareusinganApplecomputer,FireWirecancomeinhandyatthistime.ItismoreappropriatetobuyamobileharddrivewithFireWireinterface.Ingeneral,theFireWireinterfaceisadispensablething.
Shockproof
Intermsofshockresistance,thespindlesof2.5-inchnotebookharddrivesuseFBD(FluidDynamicBearing)liquidbearingmotors.Theoilfilmisusedtoreplacetheballs,whicheffectivelyavoidsthehightemperatureandnoisecausedbythefrictionoftheballs.Atthesametime,forsuddenshocks,theoilfilmcanabsorbwell.Ontheotherhand,notebookharddrivesgenerallyuse"zero-touch"headstart-stoptechnology.Inthenon-workingstate,theheadisinthedockingareaanddoesnottouchthedisc.Whenworking,theflyingheightofthemagneticheadislow,thesurfaceoftheadvancedsilicon-oxygendiscissmooth,andtheprobabilityofscratchescausedbyaccidentalvibrationofthemagneticheadduringoperationisalsogreatlyreduced.Thesetechnologieshavereducedtheprobabilityofdamagetothemobileharddiskduringthemovement.Therefore,manyoriginalwell-knownbrandharddriveshavepassedhundredsofdroptestsfromdifferentanglesinprofessionallaboratories.
Developmenttrend
WiththerapidandwidespreaduseoftheInternet,thepopularityofvariousdigitalconsumerelectronicsproductsandthecontinuousdevelopmentofmobileconceptsinvariousfieldsfrombusinessofficetopersonalentertainmentandleisure,Thestoragedemandforpersonaldata,especiallythedemandformobilestorage,isgrowingfasterandfaster.Inthepastfewyears,inthemobilestoragemarket,mobileharddiskshaveachievedhigheraccessspeeds,simpleraccessproceduresandlargercapacitythanflashstorage(ieUdisks)comparedtoopticalmediastorage(suchasCDRWDVDRW,etc.).,Lowerpricesandotheradvantagesarebecomingmoreandmorepopularwithordinaryconsumersandcommercialusers,andthemarketspaceisgettingbiggerandbigger.
Butitisalwayschanging.Withtherapiddevelopmentoftechnology,morediversifiedproducts,andincreasinglyfiercecompetition,themarkettrendanddevelopmentshowsomegraspabletrends.
Minimizethevolume,maximizethecapacity
"Minimizethevolume,maximizethecapacity"canbesaidtoimplythedevelopmenttrendoftheentiremobilestoragedevice:easytocarry,largespace.IBMreleasedthefirst1-inchminiharddrivewithacapacityof340MBin1999.By2000,thecapacityincreasedto1GB.By2009,theproductized1-inchminiharddrivecouldprovidemorethan4GBofstoragespace.Onlythesizeofafive-centRMBcoinisenoughtosettledownonavarietyofsmallandexquisiteconsumerelectronicsproducts.Atthesametime,asof2009,themaximumcapacityof2.5-inchnotebookharddrives,whichhavebasicallybecomethestandardconfigurationofmobileharddrives,hasreached80GB,whichisalmostequaltothecapacityofmainstreamdesktopharddrives.Although1.8-inchharddrivesenteredthemobilestoragemarketlate,theyperfectlyreconcilethecontradictionbetweenvolumeandcapacity.Thecapacityofa1.8-inchharddriveisabout50-75%ofa2.5-inchharddrive,butitisthinner,smaller,andlighterthana2.5-inchharddrive.Lookingattheworld’slatestandsmallestBreslinkmobileharddrive,whichwasfirstlaunchedbySibaCompanyonaglobalscale,the1.8-inch,exquisiteandcompactstructuredesignreducesthevolumeoftheentireproductto68mm×91mm×15mmwhileensuringoptimaloperation.,Equivalentto1/2ofthetraditional2.5-inchmobileharddisk,isthesmallestmobileharddiskintheglobalmarket.Assmallerportabledevicesrequiringdozensofgigabytesofinternalstoragespaceareintroducedtothemarket,1.8-inchmobileharddriveswillbeusedmoreandmore.
Speed-up-dataaccessspeed
Thereisstillahugeroomforspeed-upintheaccessspeedofmobilestoragedevices.Firstofall,theupgradeoftheinterfacestandardofthemobileharddiskfromUSB1.1toUSB2.0isanimportantmilestoneinthedevelopmentofthemobileharddisk.ThetraditionalUSB1.1specificationisspecificallydesignedforlow-speeddevicecommunication,whichdeterminesthatitsdatatransmissionratecanonlyreach12Mbps.However,duetothewideapplicationoflargefilessuchasvariousvideoandaudio,databasesandgamesoftware,mobilestorageTheaccessspeedoftheproducthasbeenchallenged.WithUSB2.0interface,thedatatransferratecanreach480Mbps,whichgreatlyimprovesthedatatransferspeed.Asof2009,moreandmoremobilestorageproductsonthemarketbegantosupporttheUSB2.0interface.TheUSB2.0interfaceisalsoastandardconfigurationontheBreslinmobileharddiskseriesofSibaCompany,whichmakesthisseriesofproductsnotonlyIthastheadvantagesofsmallsizeandlargecapacitymentionedintheabovetrend1,anditalsooccupiesaleadingpositionintheentiremobilestoragemarketintermsofdatatransmissionspeed.
However,astheindustryhaswidelyconcerned:HastheUSB2.0interfacestandardreachedthelimitofthetransferspeedofmobilestorage?Isitpossiblethattherewillbefasterinterfacestandardsinthefuture?
Practical-integrationofmultipletechnologies
In2009,domesticmobilestoragemanufacturersbegantoadvocatemultimediamobileharddrives.Graduallyintegratefunctionssuitableformassconsumers,suchasamultimediamobileharddiskthatcanplayhigh-definitionmovies,ahigh-definitionplayerthatcandirectlydownloadmoviesbyconnectingtotheInternet,andamultimediamobileharddiskplayerthatcanreadnews,checktheweather,andstocksonline.Datastorageandaudio-visualentertainmentarewellintegrated.
ThewirelessharddiskisprovidedwithaUSBchipinthehousing,andthehousingisalsoprovidedwithaBluetoothmoduleandaninfraredtransmissionmodulerespectivelyconnectedwiththeUSBchip,andtheupperpartofthehousingisprovidedwithaBluetoothandinfraredswitchknob.TheUSBflashdrivecantransmitdatawithcomputersandotherdevicesthroughinfraredtransmissionorBluetoothtransmission,eliminatingtheneedforphysicalpluggingandunplugging,whichcangreatlyextendtheservicelifeofthemobileharddisk;atthesametime,duetotheexistenceoftheBluetoothmodule,themobileharddiskcanbeusedatthesametime.Itcanbeusedbymultiplecomputersatthesametime,greatlyimprovingitsutilizationefficiency.
Securestorage
Undoubtedly,usershavethehighestconcernindexforthedatasecurityofmobilestorageproducts.Dataconfidentialityandstabilityaredirectandindispensableasthesalespointsoftheproduct.Andthisdevelopmenttrendisalsoanimportantguaranteeformobileharddrivestohaveaplaceinthemobilestorageproductmarket.Althoughcomparedwithflashmemory,mobileharddisksaretemporarilyatadisadvantageintermsofshockresistanceandsafety,butmobileharddiskmanufacturershaveneverstoppedexploringsafetytechnologiessuchasshockresistanceanddropresistance.TakeSibaElectronicsasanexample.Manytechnologiesappliedtothe1.8-inchmobileharddriveofBreslingivethisproductauniqueadvantageinsecurestorage.Itsautomaticbalancerollersystemcanprotecttheharddiskfromoperatingnormallyinharshenvironmentsorsuddenshocks,maximizingthesafetyoftheharddiskanddata.Inaddition,theuniqueanti-seismictechnologyofthePatriotanti-vibrationmobileharddiskissoughtafterbyconsumerswhoareconcernedaboutstoragesafety.Afteranalysis,accidentssuchasaccidentalfallsandcollisionsareimportantreasonsforthreatstodatasecurity.Three-dimensionaldynamicshockabsorptiontechnology.ThisisashockabsorptiontechnologywithindependentintellectualpropertyrightsownedbyPatriots.Whenthemobileharddiskcollides,theimpactenergytransmittedtotheharddiskisreduced,therebyprotectingtheharddiskdata.Afterasafetytest,thePatriotmobileharddrivecanensurethatthedataissafefroma1.5-meterdrop,andithasboughtapieceofsafetyinsuranceforthedata.Atthesametime,inthemarket,moreandmoreproductsaredevelopinginthedirectionofhardwareencryption.
Fashionappearance
Likethedevelopmentofallelectronicproducts,usersofmobileharddisksalsohavefashionablerequirementsfortheappearanceoftheproduct,especiallywhenitisstillaportableshow(show)whenshowingdurableconsumergoodstoothers.Inadditiontotheappearanceofthemobileharddiskisgettingsmallerandsmaller,lighterandcute,itsmaterialperformance,feel,decoration,color,andproductappearancehavealsobecomedemandingconditionsforconsumers.Mini(mini)representsnotsimplicity,butthesimultaneousimprovementofquality,andthebeautyofbothinsideandoutside.Productswithawave-shapedall-metalshelldesign,suchasSiba’sBreslin,havebrokenthroughthesizelimit,butarealsosuperiorinappearance,withauniquepersonalityandunassumingstyle,withavarietyofcolors.Thedesign,calmandquietlakeblue,coolandsterngray,softandelegantpurple,anddazzlingsilverwhite,bringimmaculatefashionfeelingstodifferentusers.
Productsonthemarketarebecomingmoreabundant,andatthesametime,thetrendofdemandandconsumptionwillslowlygaintwo-waystability.Althoughthefuturemarketcompetitionwillbecomemoreintense,theadvancementofproducttechnologyandthestabilityofthemarketorderwillbenefitthemajorityofmobilestorageusersandcompetingmanufacturersatthesametime.WiththegradualstrengtheningandmanifestationofthecomprehensivestrengthofmanufacturerssuchasSibaElectronics,theleadershipofmajorplayerswillbecomemoreprominent,whichwillultimatelydeterminethemarketshareoftheirproducts.Thefutureofmobilestoragewillbringusersabetterexperience.
Commonfailures
Mobileharddrivesarefrequentlyusedintheofficefield.Hereareafewcommontroubleshootingcasesformobileharddrives.
Itoftencrasheswhencopyingdatatothemobileharddisk
However,themobileharddiskdoesnotappearwhenthesameoperationisperformedonanothercomputer.BecausemostofthecurrentmobileharddrivesarepoweredbytheUSBinterfaceonthemotherboard,ifthepowersupplycapacityoftheUSBinterfaceisinsufficient,resultinginunstablevoltageduringdataexchangethroughtheUSBinterface,acrashwilloccur.Ifthemobileharddisksupportsanexternalpowersupply,itisbesttouseanexternalpowersupplytopowerit.Iftheexternalpowersupplyisnotsupported,itisbesttoreducetheamountofdatatobetransmitted,thatis,totransmitalargeamountofdatainmultipletimes.Inaddition,iftheoperatingsystemisunstable,itmayalsocausethemobileharddisktocrashwhileworking.Theseexternaldeviceshavereallyhighpowerrequirements.Therefore,thestandardpowersupplyofcomputersnowadaysis300W.
Thebluescreenphenomenonoftenoccurswhenusingthemobileharddisk
Atfirst,IsuspectedthattheUSBinterfacepowersupplywasinsufficient.Afterreplacingthehigh-powerpowersupply,thefaultpersisted.Later,Isuspectedthatthesystemwasunstable,andfoundthatthedriverfortheVIAchipsetthatcamewiththemotherboardwasnotinstalled.Inthedriver,therewasaspecialUSBdriver.Afterreinstallingthemotherboarddriver,thefaultisrectified.
Maintenanceexperience:AlthoughtheWindowsoperatingsystemcomeswithmanyhardwaredrivers,theycanalsobeinstallednormally,butforsomepartswithpoorcompatibility,itisbesttoinstalltheoriginaldrivers.
Themobileharddiskcannotbedetectedbythesystem
Faultphenomenon:Whenthemobileharddiskisconnectedtothecomputer,theharddiskmakesa"click,click"sound,andtheindicatorontheharddiskkeepsonFlashing,thesystemcandetecttheUSBdevicenormally,butcannotviewtheiconofthemobileharddisk.
Faultdiagnosis:ThefaultmaybecausedbytheunstablevoltageoftheUSBinterface.ThesystemcandetecttheUSBdevice,indicatingthatthesystemcandetecttheharddisknormally.Accordingtotheindicatorlightflashingcontinuouslyandaccompaniedbya"click,click"sound,itcanbejudgedthatthemobileharddiskisnotdamaged.
Troubleshooting:Changetheharddisktoanothercomputer.Ifitcanbeusednormally,thentroubleshoot.
Unabletocopyfilestothemobileharddisk
Symptom:Connectthenewlypurchasedmobileharddisktothecomputer,andsometimesyoucancopyfileswhencopyingfiles,butsometimestheycan’t.Whatisthereason?
Analysisandprocessing:Thisisalsocausedbyinsufficientpowersupply.SincetheUSBharddiskalsoneedstoconsumeacertainamountofpowerwhenitisworking,ifitispowereddirectlythroughtheUSBinterface.Theremaybeinsufficientpowersupply.AlmostallmobileharddiskscomewithaseparateexternalpowersupplyorPS/2conversioninterface.Atthistime,aslongastheexternalpowersupplyisconnectedinadvanceorthroughthePS/2conversioncable,theproblemcangenerallybesolved.
CannotbeusedwithaUSBextensioncord
Problem:Plugthemobileharddiskdirectlyintothecomputeranditcanbeusednormally,buttheUSBextensioncableconnectedtotheUdiskcannotbeused.Whatisthereason??
Analysisandprocessing:Fromthepointofviewoftheproblem,themainproblemiscausedbytheuseofaUSBextensioncable.BecausethemobileharddiskisaUSB20standardinterface,thisrequiresthatthecableconnectingthecomputerandthemobileharddiskmustsupporttheUSB2.0standard.Therefore,usingtheUSB1.1standardcableforUdiskwillcausetheUSB20standardmobileharddisktonotberecognizedcorrectly.JustreplaceaUSB2.0standardcabletosolvethisproblem.
Thefilenameinthemobileharddiskisgarbled
Symptom:Themobileharddiskthatwasboughtnotlongagowasnormalwhenitwasfirstused.Aftercopyingsomefilessometimeago,itpassedAfterafewdays,Ifoundthatthefilenamesofthefilesinthemobileharddiskbecamegarbled.Whyisthis?
Analysisandprocessing:Thegarbledcharactersinthefilenamearemostlycausedbyincorrectuseofthemobileharddisk.Forexample,themobileharddiskisdirectlyunpluggedwithoutthepremiseof"safelyremovingtheUSBdevice",orthemobileharddiskisreadandwrittenwhenthepowersupplyoftheUSBinterfaceisinsufficient.Inaddition,ifthemagnetictrackorsectorofthemobileharddiskiswrong,itmayalsocausethefilenameinthemobileharddisktoappeargarbled.Ofcourse,themostlikelycauseofthiskindofproblemistheinsufficientpowersupplyofthemobileharddisk.ManymobileharddisksrequiredualUSBportstoachieveForpowersupplyanddatatransmission,ifyouareusingthistypeofmobileharddisk,youmustpayattentiontotheconnection.
TheproblemofdualUSBinterface
Mobileharddisk(7photos)
Forthistypeofproblem,ifitisnotforseriousfailuressuchasbadsectorsontheharddisk,GenerallyusethedisktoolthatcomeswithWindowstorepairit.Themethodisasfollows:Right-clickthemobileharddiskpartitionwithgarbledcharactersinthefolder,andselectthe"Properties"commandinthepop-upmenu.Intheopenedpropertiesdialogbox,switchtothe"Toolstab,andclickthe"StartCheck"buttoninthe"Fault"column.Encryption
Introduction
ManyusersoftenWhenyougoouttoworkwithyourlaptop,oruseaUSBflashdriveoramobileharddrivetocarryallkindsofdata,incaseofaccidentalloss,thedatawillbeleaked.Isthereanywaytoavoidthis?Theanswerisyes,andtheBitLockerencryptionfunctionisalsoused.Itcanbeusedtoencryptmobileharddrives,Udisksandnon-systempartitionstothecomputer.Onlybyenteringthecorrectpasswordcanyouaccessthedata.Inthisway,nomatteriftheUdiskislostorthelaptopisremovedbyathief,youdon’thavetoworryaboutthecontents.Datawillbeleaked.
Thestepsforencryptingthenon-systempartitionoftheharddiskandencryptingtheUSBflashdriveareexactlythesame.
Encryptionmethod
Step1isonthepartitiontobeencryptedRight-click,selectthe"EnableBitLocker"option,andthenselectthe"Usepasswordtounlockthedrive"checkboxinthepop-updialogbox,andsetthepasswordinthecorrespondingcolumn.Aftersetting,clickthe"Next"button.
Step2Inordertoavoidtheembarrassmentofusersforgettingthekeyandmakingthemunabletoaccessthedata,thewizardprovidesarecoverykey.Theusercansavetherecoverykeyasafileorprintitoutandputitinasafeplace.Inthisexample,choosetosaveasafile.
Step3Clickthe"Encryption"buttontostartencryption.Theencryptionprocessmaytakeseveralminutesorlonger,dependingonthesizeofthedrive.Pleasewaitpatiently.EncryptionAftercompletion,clickthe"Close"buttoninthepop-updialogbox.
Aftertheencryptioniscompleted,whenyouwanttoaccesstheencryptedUSBflashdriveorharddiskpartitioninthefuture,youneedtoenterthecorrectpasswordtounlockthedrive.
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