1.Määritelmä
Informationstorageistosavetheobtainedorprocessedinformationforfutureapplication.
Informationstorageisnotanisolatedlink,itrunsthroughtheentireprocessofinformationprocessing.
2.Tallennusmedia
Itisdividedintopaperstorageandelectronicstorage.Differentinformationcanbestoredondifferentmedia,andthesameinformationcanalsobestoredondifferentmediaatthesametime,withdifferenteffects.Forexample,voucherfilesneedtobestoredinpapermedia,butalsoneedtobestoredelectronically;theinventoryaccountsofarchivematerials,equipmentormaterialsintheenterprisestructureandpersonnel,bothpaperandelectronicstoragearesuitableforarchivingandonlineretrievalandinquiries.
1) Paperi
Edut:suuri varasto,pieni koko,halpa,hyväpysyväsäilyvyys,ja vaikea maalata ja muokata.Se tallentaa numeroita,tekstejä ja kuvia.
Disadvantages:Thetransmissionofinformationisslowanditisinconvenienttoretrieve.
2) elokuva
Edut: suuri tallennustiheys, helppo kysely.
Disadvantages:Interfacedevicesmustbeusedwhenreading,whichisinconvenientandexpensive.
3) Tietokone
Advantages:Theaccessspeedisextremelyfast,andtheamountofstoreddataislarge.
3. Toiminto
Thestorageofinformationisthebasisforthetransmissionofinformationinthetimedomain,aswellasthebasisforthefurtherintegration,processing,accumulationandregenerationofinformation.Itisimportantinhumanandsocialdevelopment.Significance.Papermaking,printing,photography,cameratechnology,audioandvideotechnology,aswellasmagneticdisks,tapes,andopticaldisksarealltechnologiesgeneratedbyinformationstoragedrives.Theseman-madeinformationstoragetechnologiesanddevicesnotonlyhavethepotentialtoexpandthestoragecapacityofthehumanbrainintermsofstoragecapacityandaccessspeed,butalsohavemoreimportantimplications:first,theytransferinformationfrompeople’ssubjectiveknowledgeoftheworldtothestorageoftheobjectiveworld.Inthemedium,theycanbepassedonfromgenerationtogenerationwithoutbeingrestrictedbyhumandeath;second,theycanbecomethesharedknowledgeofthehumansocietywithoutthelimitationofthepersonalbrain,andbecomeanimportantmediumforinformationexchangebetweenpeopleinthesociety.
Informationstorageisanimportantaspectoftheinformationsystem.Itisconvenienttomakefulluseofthecollectedandprocessedinformation,toensurethatitcanbetakenatanytime,andcreateconditionsforthemulti-functionaluseofunitinformation.However,informationcollection,processing,andstoragerequirecost,manpower,andmaterial.
4.Teknologiatrendit
4.1Tallennusvirtualisointitekniikka
Astheamountofinformationinthecomputercontinuestoincrease,thedirect-connectedlocalstoragesystemisnolongersufficientWiththemassivegrowthofbusinessdata,buildingasharedstoragearchitectureandrealizingunifiedstorage,managementandapplicationofdatahasbecomeanindustrydevelopmenttrend,andvirtualstoragetechnologyisgraduallybecomingthemainstreamtechnologyforsharedstoragemanagement.Storagevirtualizationtechnologyintegratesphysicalstoragedeviceswithdifferentinterfaceprotocolsintoavirtualstoragepool,andcreatesandprovidesvirtualstoragevolumesequivalenttolocallogicaldevicesforthehostasneeded.
Usingvirtualstoragetechnologycanrealizetheautomationandintelligenceofstoragemanagement:inthevirtualstorageenvironment,allstorageresourcesarelogicallymappedasawhole,whichisasingleviewoftransparentstorageforusers,Informationnetworkcentersystemadministratorsonlyneedtofocusonmanagingthestoragespaceitself.Allstoragemanagementoperations,suchassystemupgrades,changingRAIDlevels,initializinglogicalvolumes,creatingandallocatingvirtualdisks,storagespaceexpansion,andothercommonoperationsaremorethanbefore.easy.
Usingvirtualstoragetechnologycangreatlyincreasethestorageutilizationrate:thebiggestproblemthatplaguedtheinformationnetworkcenterinthepastistheinefficientuseofphysicalstoragedevices.Takingtraditionaldiskstorageasanexample,thediskcapacityutilizationofsomehostsTherateisnothigh.However,thespaceofsomehostsisofteninsufficient,sothatcustomershavetopurchasemorediskspacethantheactualamountofdata,whichcausesawasteofstoragespaceresources.Virtualstoragetechnologysolvesthiswasteofstoragespace,integratesthescatteredstoragespacesinthesystem,allocatesdiskspaceondemand,andcustomerscanmakefulluseofdiskcapacity,therebygreatlyimprovingtheutilizationofstorageresources.
4.2Hierarkkinen tallennustekniikka
Hierarchicalstoragemanagement(HSM)technologymeansthatthesystemstoresthedataonstoragedevicesofdifferentperformanceaccordingtotheimportanceofdata,accessfrequencyandotherindicators.Thestoragemethodofthesystem,real-timemonitoringofthefrequencyofdatausage,andautomaticallymigratelong-termidledatablockstolow-performancedisks,andputactivedatablocksonhigh-performancedisks.
4.3 Tietosuojatekniikka
Dataprotectionsystemreferstotheconstructionofalocalbackupsystemandareliableremotedisasterrecoverysystem.Whenadisasteroccurs,theoriginalsystemcanberestoredinacomplete,fast,simple,andreliablemannerthroughthebackupdatatoavoiddamagetothebusinesssystemduetothedisaster.Theconstructionofthedataprotectionsystemisagradualprocess.
5. Viitteet
1)XueHuacheng.ManagementInformationSystem[M].TsinghuaUniversityPress,1999.
2)YangAihua,MiaoChangchuan.ModernMarketingManagement[M].TsinghuaUniversityPress,2004.
3)YanWei.ApplicationofInformationStorageandRetrievalTechnologyintheConstructionofScienceandTechnologyInformationResources.ChinaInformationHerald.2007No.12Period