IN THE

Johdanto

NASisdefinedasaspecialdedicateddatastorageserver,includingstoragedevices(suchasdiskarrays,CD/DVDdrives,tapedrivesorremovablestoragemedia)andEmbeddedsystemsoftwarecanprovidecross-platformfilesharingfunction.NASusuallyoccupiesitsownnodeonaLANwithouttheinterventionoftheapplicationserver,allowinguserstoaccessdataonthenetwork.Inthisconfiguration,theNAScentrallymanagesandprocessesalldataonthenetwork,removingtheloadfromtheapplicationorenterpriseserverUploadanduninstall,effectivelyreducethetotalcostofownershipandprotectuserinvestment.

NASitselfcansupportmultipleprotocols(suchasNFS,CIFS,FTP,HTTP,etc.),andcansupportvariousoperatingsystems.Throughanyworkstation,IEorNetscapebrowserscanbeusedforintuitiveandconvenientmanagementofNASdevices.

NASconnectsstoragedevicestotheexistingnetworktoprovidedataandfileservices.NASserversgenerallyconsistofstoragehardware,operatingsystems,andfilesystemsonthem.NASisdirectlyconnectedtothediskstoragearraythroughthenetwork.Themagneticarrayhasthecharacteristicsofhighcapacity,highperformance,andhighreliability.NASconnectsstoragedevicesthroughastandardnetworktopologyandcanaccesstheInternetdirectlywithoutaserver,anddoesnotrelyonageneraloperatingsystem.Instead,itadoptsasimplifiedoperatingsystemdesignedforusersanddedicatedtodatastorage.Protocol,whichmakesthemanagementandsettingoftheentiresystemrelativelysimple.

Tekniset ominaisuudet

NASsolutionsareusuallyconfiguredasafileservicedevice,whichisusedbyworkstationsorserversthroughnetworkprotocols(suchasTCP/IP)andapplications(suchasnetworkfilesystemNFS).OrCommonInternetFileSystemCIFS)forfileaccess.MostNASconnectionsaremadebetweenworkstationclientsandNASfilesharingdevices.Theseconnectionsdependonthecompany'snetworkinfrastructuretofunctionproperly.

Inordertoimprovesystemperformanceanduninterrupteduseraccess,NASusesspecializedoperatingsystemsfornetworkfileaccess.Theseoperatingsystemssupportbothstandardfileaccessandcorrespondingnetworkprotocols.Therefore,NAStechnologycanmeetspecificuserneeds.Forexample,whencertainenterprisesneedtodealwiththeproblemofrapiddatagrowth,ortosolvethesystemlimitationscausedbymutuallyindependentworkingenvironments,theycanadoptanewgenerationofNAStechnologyandusecentralizednetworkfileaccessmechanismsandsharingtosolvetheseproblems.,Soastoachievethepurposeofreducingsystemmanagementcostsandimprovingdatabackupandrecoveryfunctions.

Työn luokittelu

Sähköinen palvelin

Theelectricalserveristhelowest-endproductintheNASseries.Theelectricalserverisnotadedicatedadditionalstoragedevice.Theyprovideastoragelocationforthenetwork,butbecausetherearenoredundantandhigh-performancecomponents,theyarerelativelycheap.Inaworkgroupenvironment,appliance-typeservershavemanyfunctions.Typicalservicesincludenetworkaddresstranslation(NAT),proxy,DHCP,email,webserver,DNS,firewall,andVPN.

TyöryhmäNAS

Workgroup-levelNASisparticularlysuitableforsmallandmedium-sizedcompanieswithrelativelylowstoragerequirements.TheirstorageneedsgenerallyrangefromafewhundredGBto1TB.Companiesrunninge-commercesoftwareorlargedatabaseswillneedseveralterabytesofstoragespace,andtheyusemedium-sizedNAS.Generallyspeaking,whenupgradingfromaworkgrouptoamedium-sizedNAS,youwillfindhot-swappabledrivesandsomedeviceboxesthatcanplaceadditionaldrivesormorefailurerecoveryproducts,enhancedmanagementfunctions,andaslightincreaseinsystemcomplexity.

KeskikokoinenNAS

Themedium-sizedNASsolutionwecallprovidesbetterscalabilityandreliability,andhassimilaradvantagestolow-endNAS,suchasconvenienceanddedicatedStoragespaceandsimpleinstallationandmanagementprocess.Comparedwithappliance-typeserversandworkgroup-levelNAS,thecostoftheseNASdevicesissignificantlyhigher.

LaajamittainenNAS

Forthistypeofstoragedevice,thesystem'seasyscalability,highavailabilityandredundancyareallcritical.Thesedevicesmustalsoprovidetheperformanceofhigh-endservers,flexiblemanagement,andtheabilitytointeractwithheterogeneousnetworkplatforms.

Hyödyt ja haitat

Edut

NAS-tietojen tallennuksen edut ovat seuraavat:

(1)NASissuitableforthosewhoneedtopassThenetworktransmitsfiledatatousersonmultipleclientcomputers.NASdevicescanplayagoodroleinenvironmentswheredatamustbetransmittedoverlongdistances.

(2)NASequipmentisveryeasytodeploy.NAShosts,clients,andotherdevicescanbewidelydistributedinthenetworkenvironmentoftheentireenterprise.NAScanprovidereliablefile-leveldataintegrationbecausefilelockingishandledbythedeviceitself.

(3)NASisusedinefficientfilesharingtasks.DifferenthostsandclientsaccessdataontheNASthroughfilesharingagreementstoachievefilesharingfunctions,suchasNFSinUnixandWindowsntInCIFS,thenetwork-basedfile-levellockingprovidesadvancedconcurrentaccessprotectionfunctions.

Rajoitukset

(1)TheNASdeviceandtheclientareconnectedthroughthecorporatenetwork,sothenetworkbandwidthwillbeoccupiedduringdatabackuporstorage.Thiswillinevitablyaffectothernetworkapplicationsontheenterprise'sinternalnetwork;sharingnetworkbandwidthhasbecomeamajorproblemthatlimitsNASperformance.Therefore,thedatatransmissionrateoftheNASsystemisnothigh,andtheGigabitEthernetcanonlyreach30~50MB/s.

(2)ThescalabilityofNASislimitedbythesizeofthedevice.ItisveryeasytoaddanotherNASdevice,butitisnoteasytoseamlesslymergethestoragespaceoftwoNASdevices,becauseNASdevicesusuallyhaveuniquenetworkidentifiersandtheexpansionofstoragespaceislimited.Itcanonlyprovidefilestoragespaceandcannotfullymeettherequirementsofdatabaseapplications.

(3)NASaccessrequiresfilesystemformatconversion,soaccessisatthefilelevel.NotsuitableforBlock-levelapplications,especiallydatabasesystemsthatrequiretheuseofbareequipment.

(4)Varhainen asennus ja laitekustannukset ovat korkeat.

Pääsovellukset

ToimistoautomaatioNAS-ratkaisu

Officeautomationsystem(OA)isthefocusoftheinformatizationconstructionofgovernmentagenciesandenterprises.Themanagementandoperationofmodernenterprisesandinstitutionsareinseparablefromcomputersandlocalareanetworks.Whenenterprisesusethenetworkfordailyofficemanagementandoperation,theywillgeneratedailyofficedocuments,drawings,ERPandothercorporatebusinessdataandmanypersonaldocuments..ThereisgenerallynofileserverinthetraditionalinternalLAN.Theabove-mentioneddataisgenerallystoredontheemployee'scomputerandserver,andthereisnosuitabledeviceasitsbackupandstorageapplication.Becausethesecuritylevelofpersonalcomputersisverylow,employees'securityawarenessisuneven,andimportantinformationiseasilystolen,maliciouslydamagedorlostduetoharddiskfailure.

Fromtheanalysisofthedatastorageofenterprisesandinstitutions,itcanbeseenthatinorderfortheinternaldataoftheentireenterpriseandinstitutiontobemanagedandsafelyapplied,theremustbeasafe,cost-effective,convenientapplication,Managesimplephysicalmediatostoreandbackupdatawithintheenterprise.TheNASnetworkstorageserverisaspeciallydesignedfilestorageandbackupserver.Itcanmanagethedatainthenetworkreasonably,effectivelyandsafely,andcanbeusedasabackupdevicetoautomaticallybackupthedatabaseandotherapplicationdatatotheNASfromtimetotimesuperior.

TaxNAS-ratkaisu

Whatthetaxindustryneedsisacomprehensivesystemthatintegratesbusiness,information,anddecisionsupport.Industrybusinesssystemsaremainlytaxcollectionandmanagementinformationsystems,aswellastaxbusinessinformationandgeneralbusinessinformation.Theentiresystemcombinesadministrativeofficeinformation,auxiliarydecision-makinginformationandbusinesssystemstoformageneralintegratedsystemplatform,thusformingacomplete,integratedandintegratedtaxbusinessmanagementsystem.

Businessdata,dailyofficedocuments,anddatamailsystemsinthetaxindustryareveryimportant.Oncethedataislost,itwillbringtroublestodailyworkandtaxationworkintheentireregion.Ensuringthesafeoperationandapplicationoftheentiredatahasbecomeapracticalproblemthatmustbesolvedinthetaxindustry.Thesolutiontothisproblemistostoreorbackupthesedatainasafe,fast,andconvenientapplicationenvironmenttoensurethesafeoperationoftaxindustrydata.

Inordertoreasonablysolvetheproblemofdatabusinessdatabackupandstorage,aNASnetworkstorageservercanbeusedtostoreandbackupbusinessdataanddailyofficedata.Inthebusinesshost,theinformationinthedatabaseisdirectlybackeduptotheNASthroughthedataincrementalbackupfunction.Togetherwiththebusinessdatainthelocalareanetworkandthestaff'sdailyofficedocumentsorCD-baseddata,theycanbestoredontheNASserversothatthestaffcanuseandbrowsethesedataatanytime.AfterusingNAS,administratorscaneffectivelyandreasonablyarrangeandmanagetheirinternaldatafiles,separatedatafilesfromothernetworkmachines,realizethedecentralizedstorageofdatafiles,andunifythemanagementofthedatadataenvironmentsystem.

MainontaNASratkaisu

Theadvertisingdesignindustryisacomprehensiveserviceindustrythatintegratesmarketresearch,marketingstrategy,creativeproduction,designexecution,post-productionandmediarelease.

Thedatastoragemodelofmanyadvertisingcompaniesisrelativelybackward,withhighcostandlowefficiency.Themainproblemispoordatasecurity;theoveralldatavolumeislargeandtheoriginallargeamountofobsoletedataisdifficulttostoreandmanage;therearemultipleoperatingsystemsThecomplicatedplatformandequipmentmakeitdifficulttoshareandmanagestoreddata,resultingininefficiency;theresignationofadvertisingdesignerscausesinnocentlossofdesignmaterials.AdoptNAStostoreandbackupthebusinessdataintheadvertisingdesignindustrynetworktorealizethecentralizedstorage,backup,analysisandsharingofdata.Accordingtothedifferentrequirementsofthedesignandresearchunitfordifferentdata,makefulluseoftheexistingdatatoreasonablyconstructtheadvertisingdesignindustry.Thedatastorageplatformimprovesthetransmissionspeedofinformationmaterials,savestime,andimprovesworkefficiency.

EducationalNASsolution

Sincethe“School-SchoolConnect”projectwasproposed,eachschoolisactivelybuildingitsowncampusnetworksothatitcanadapttothedevelopmentoftheinformationageintime.Withthegradualimplementationofthe"School-SchoolLink"project,"ResourceLink"hasbecomethefocusofthenextstepofinformatizationconstruction,whichisembodiedinthefactthatschoolsneedalotofresourceinformationtomeettheneedsofstudentsandteachers.Withthecontinuousincreaseofdataresourcesoncampus,thephysicalmediaforstoringdataneedstohavelarge-capacitystoragespaceandsecurity,andhaveaveryfasttransmissionratetoensurethesafetyandrapidaccessoftheentiredata.

Intheprocessofcampusnetworkconstruction,theemphasisisontheconstructionofthenetworksystem.Thenetworkisequippedwithalargenumberofadvancedequipment,buttheteachingapplicationresourcesonthenetworkarerelativelyscarce.Theoriginalstoragemodelwillshowmanydrawbackswhenincreasingteachingresources:Becausealleducationalresourcesintheschool’straditionalnetworkapplicationsarestoredonaserver,thecostofaserverwithhighperformanceandhighscalabilityishigher;accesstoteachingresourcesServiceswillcompetewithapplicationservicesforsystemresources,resultinginasignificantdropinsystemserviceefficiency;systemfailuresofapplicationserverswilldirectlyaffectthesecurityandavailabilityofresourcedata,andbringinconveniencetoschoolteaching.

Inresponsetotheseproblems,NASdevicescanbeintroducedtoachievecentralizedstorageandbackup.

(1)NASprovidesanefficientandlow-costresourceapplicationsystem.SincetheNASitselfisanindependentnetworkserver,itcanbeflexiblyarrangedonanynetworksegmentofthecampusnetwork,whichimprovestheefficiencyandsecurityofresourceinformationservices,andhasgoodscalabilityandlowcost.

(2)Provideflexiblepersonaldiskspaceservices.NAScancreateapersonaldiskspaceforeachstudentuser,whichisconvenientforteachersandstudentstofindandmodifythedatatheycreated.

(3)Provideanenvironmentforonlinedatabackup.NASsupportsexternaltapedrives,whichcaneffectivelytransferdatafromtheservertotheexternaltapedrives,ensuringdatasecurityandfastbackup.

(4)Effectivelyprotectresourcedata.TheNAShasanautomaticlogfunction,whichcanautomaticallyrecordtheaccessinformationofallusers.Theembeddedoperationmanagementsystemcanensurethatthesystemnevercrashestoensurecontinuousresourceservicesandeffectivelyprotectthesecurityofresourcedata.

Lääketieteellinen tietovarastoNAS-ratkaisu

Asamedicalserviceorganizationinthesociety,themanagementofpatientcasefilesisveryimportantforhospitals.FilmsbasedonCTandX-raysmustbeconvertedintodigitalinformationbyafilmdigitizerandstoredforeasyretrievalinthefuture.Theamountofdatainthesefilmsisverylargeandveryimportant.Thesafestorageofthesefilms,quickaccesstomanagementdataandinformation,andeffectiveuseareimportantfactorstoimproveworkefficiency,anditisalsoakeyissueinhospitalinformationconstruction.Accordingtothesurvey,ahospital’smonthlydatavolumeiscloseto500GB.Computerstoragealoneisnotsufficientforsuchalargeamountofdata.Somehospitalswillusearecordertoburnpastdatapicturestoopticaldiscsforstorage.Thestoragesolutionistime-consumingandinefficient.Hospitalsneedaphysicalmediumwithlargecapacity,highsecurity,convenientmanagement,andquickdataquerytostoreandmanagethesedatasafelyandeffectively.TheNASsolutioncanstoreandmanagethesedigitalpicturesintheradiologydepartmentofthehospitalsafely,conveniently,andeffectively,therebyshorteningthetimefordatastorageandsearching,andimprovingworkefficiency.

ManufacturingNASsolution

Forthemanufacturingindustry,variousmarketdata,customerdata,transactionhistorydata,andsocialcomprehensivedataareallvitalassetsofthecompany.Thelifebloodofbusinessoperations.Onthebasisofthedigitizationofenterprisedata,protectingthekeydataoftheenterpriseandusingitrationallyhasbecomeakeyfactorforthesuccessoftheenterprise.Therefore,centralizedstorage,management,andbackupofvariousdatainthemanufacturingindustry,accordingtothedifferentrequirementsoftheenterprisefordifferentdata,soastobuildareasonableenterprisedatastorageplatform.TheNASstoragemethodismoresuitable,whichcanrealizecentralizedstorage,backup,analysisandsharingofdata,andmakefulluseofexistingdataonthisbasistomeetmarketneedsandimproveitscompetitiveness.

Tosumup,intermsofdatamanagement,NAShasgreatadvantages,whichcanbemorefullyreflectedincertainnetworkenvironmentswithfasterdataexpansion,higherdatasecurityrequirements,andheterogeneousplatformapplications.Itsvalue.Inaddition,NAShasanextremelyhighcost-performanceratio,andiswidelysuitableforvariousapplicationenvironmentsfromsmallandmedium-sizedenterprisestolargeandmedium-sizedenterprises.

SAN:n ja NAS:n vertailu

NASisthecontinuationofthetraditionalnetworkfileservertechnology.Itisadedicatednetworkfileserverandisanewtechnologyandnewproductthatreplacesthetraditionalnetworkfileservermarket..Thenetworkfileservertechnologyisbasedonthematuredevelopmentofnetworktechnology.Therefore,itsaccessprotocolisthegeneralTCP/IP,andtoday'sNASproductsarealsobasedontheTCP/IPprotocolfileaccessmechanism.Traditionalnetworkfileserverscanbegenerallydividedintotwocategories:thefirstcategoryisUNIXnetworkfileservers,whichsupportNFSservers;thesecondcategoryisNTnetworkfileservers,whichsupportCIFSservers.Thestartingpointofthenetworkfileserverisdatasharingandprotection,buttheabovetwotypesofnetworkfileserversaremoredifficulttoshare;anetworkfileserversystemsupportslimitednetworkaccesscapabilities,sowhenanetworkfileservercannotmeettheperformancerequirements,itmustbeNewnetworkfileserversareadded,buttoomanynetworkfileserverscausemanagementandmaintenancedifficultiesandwasteofresources;atthesametime,traditionalnetworkfileservershaveverylimiteddataprotectioncapabilities(generally,asinglehostisconnectedtostoragemediatoformanetworkfileserver.Pointfailure),lossofdataishardtoavoid.

SANandNASaresuitablefordifferentapplications.SANisthecontinuationofthetraditionalDAStechnology,anditisanetworkstoragetechnologysuitableforalargenumberofdatablockaccessmethods,thatis,informationismainlystoredandmanagedinablockmode.ThecoreofSANtechnologyistheSANswitch,whichisthebridgebetweenthestoragesystemandthehostsystem.AlthoughtheSANswitchisalsoequippedwithCPUandCACHE,andcanalsohaveintelligentsoftwaresuchasself-managementandself-configuration,itsmainfunctionisstillasadataexchangechannel.SANtechnologyhasbeenverymatureafterseveralyearsofdevelopment.SANtechnologyabsorbstheadvantagesoftraditionalchanneltechnologyandtraditionalnetworktechnology,soithasfeaturessuchashighspeed,lowlatency,highdataconsistency,bigdatatransmission,routingmanagement,extensiveconnectivity,andlongdistanceSupport,flexiblemanagementandotheradvantages.

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