storage

Interpretation

1.Accumulatemoneyorthings."CaseoftheQingHuiDian·Hube·Treasury":"TheHubuZoubulibraryisemptyandshouldbestored.""QingHuiDian·HubeCangchangYamen·ShiLang'sposition":"Newgrainsenterthewarehouseeveryyear.Accordingtotheamountofriceintheoldstock,theamountofriceinacertainyearwillbestoredinacertainwarehouse,andthepre-consultationdepartmentwillberecorded."LuXun's"LettersCollection·ToLiXiaofeng":"Thefamilyoftheauthorof"TheDeathofOldTimes",nowQuiteembarrassing,afewfriendscollectedmoneyforitandstoreditforthechildrentoread."

2.Referstotheaccumulatedmoneyorthings,etc.ShaTing"Doctor":"EvenifIoccasionallythinkofhisowneveningscenesandthinkofnotmuchstorage,hecansighandthrowitaway."

3,Storageisbasedondifferentapplicationenvironmentsbyadoptingreasonable,Savedataoncertainmediainasafeandeffectivewayandensureeffectiveaccess.Generallyspeaking,itcanhavetwomeanings:ontheonehand,itisaphysicalmediumwherethedataresidestemporarilyorforalongtime;ontheotherhand,Itisawayorbehaviortoensurethecompleteandsafestorageofdata.Storagecombinesthesetwoaspectstoprovidecustomerswithadatastoragesolution.

MarketAnalysis

Thestoragemarketwillcontinuetoundergorapidchanges,whicharedrivenbytheongoingprocessofstorageresourcenetworkingandstoragevirtualization.Whatrolewillstorageareanetwork(SAN),networkattachedstorage(NAS)andIPstorageplayinyourstrategicplan?Manyimportantbusinessissuesarealsoreshapingthestorageindustry.Companiesneedtoadoptnewwaystocollectbusinessintelligencefromstoredinformation.Theintroductionofnewcomplianceandreportingregulationsalsoshowsthatstoragerequirementsaregrowingrapidly.

Datastorage

Datastorageisthetemporaryfilegeneratedduringtheprocessingofthedatastreamortheinformationthatneedstobesearchedduringtheprocessing.Thedataisrecordedontheinternalorexternalstoragemediumofthecomputerinacertainformat.Datastorageshouldbenamed,andthisnamingshouldreflectthemeaningofthecompositionoftheinformationcharacteristics.Dataflowreflectsthedataflowinginthesystem,showingthecharacteristicsofdynamicdata;datastoragereflectsthestaticdatainthesystem,showingthecharacteristicsofstaticdata.

Commonstoragemethods

DAS

DAS(DirectAttachedStorage)

DASThisstoragemethodisthesameasourordinaryPCstoragearchitecture.Externalstoragedevicesaredirectlyconnectedtotheinternalbusoftheserver,anddatastoragedevicesarepartoftheentireserverstructure.

TheDASstoragemethodismainlysuitableforthefollowingenvironments:

(1)Smallnetwork

Becausethenetworkissmallinscale,theamountofdatastorageissmall,anditisnotverycomplicated,Theuseofthisstoragemethodwillnothaveagreatimpactontheserver.Andthisstoragemethodisalsoveryeconomical,suitableforenterpriseuserswithsmallnetworks.

(2)Geographicallydispersednetwork

Althoughtheoverallscaleoftheenterprisenetworkislarge,itisgeographicallydispersed,anditisverydifficulttointerconnectbetweenthemthroughSANorNAS.Atthistime,theserversofeachbranchofficecanalsouseDASstorage,whichcanreducecosts.

(3)Specialapplicationserver

Onsomespecialapplicationservers,suchasMicrosoft'sclusterserverortheoriginalpartitionusedbysomedatabases,storagedevicesarerequiredtobedirectlyconnectedtotheapplicationserver.

(4)ImproveDASstorageperformance

Inthevariousconnectionmethodsbetweenserverandstorage,DASwasonceconsideredtobeaninefficientstructure,anditisinconvenienttocarryoutdataprotect.Directlyconnectedstoragecannotbeshared.Therefore,itisoftenthecasethatacertainserverhasinsufficientstoragespace,whileotherservershavealargeamountofstoragespacethatisidlebutunavailable.Ifstoragecannotbeshared,thereisnobalancebetweencapacityallocationandusagerequirements.

ThedataprotectionprocessundertheDASstructureisrelativelycomplicated.Ifnetworkbackupisperformed,eachservermustbebackedupseparately,andalldatastreamsmustbetransmittedthroughthenetwork.Ifyoudonotdonetworkbackup,theneachservermustbeequippedwithasetofbackupsoftwareandtapeequipment,sothecomplexityofthebackupprocesswillgreatlyincrease.

Ifyouwanttohavehigh-availabilityDASstorage,youmustfirstreducethecostofthesolution,suchasLSI’s12Gb/sSAS,whereithasDASdirect-attachedstorage,andDAScandoagoodjobLargedatacentersprovidesupport.Forlarge-scaledatacenters,cloudcomputing,storage,andbigdata,allofthisputsforwardhigherrequirementsforDASstorageperformance.Theexplosivegrowthofcloudandenterprisedatacenterdatahasalsopromotedthemarketforhigher-speeddataaccess.Thedemandforhigh-performancestorageinterfaces,thereforeLSI12Gb/sSAScanjustmeettherequirementsofthisperformancegrowth,itcanprovidehigherIOPSandhigherthroughput,12Gb/sSASimproveshigherwritecapacityPerformance,andimprovetheoveralloverallperformanceofRAID.

Comparedwiththedirect-attachedstoragearchitecture,sharedstoragearchitecturessuchasSAN(storage-areanetwork)orNAS(network-attachedstorage)canbettersolvetheaboveproblems.Asaresult,weseethattheprocessofDASbeingeliminatedisgettingfasterandfaster.DASisstillacommonmodeforconnectingserversandstorage.Infact,notonlyhasDASnotbeeneliminated,itseemsthatthereisatrendofresurgence.

NAS

NAS(NetworkAttachedStorage)

TheNASmethodcomprehensivelyimprovesthepreviouslyinefficientDASstorageWay.Itusesafileserverthatisindependentoftheserverandisdevelopedfornetworkdatastoragetoconnectthestoragedevicestoformanetworkbyitself.Inthisway,datastorageisnolongeraffiliatedwiththeserver,butexistsinthenetworkasanindependentnetworknodeandcanbesharedbyallnetworkusers.

AdvantagesofNAS:

(1)Trueplug-and-play

NASisanindependentstoragenodethatexistsinthenetwork,andtheoperationoftheuserSystemplatformhasnothingtodowithrealplugandplay.

(2)Storagedeploymentissimple

NASdoesnotrelyonageneraloperatingsystem,butusesasimplifiedoperatingsystemdesignedforusersandspecificallyfordatastorage.Theprotocolrequiredfornetworkconnectionmakesthemanagementandsettingoftheentiresystemrelativelysimple.

(3)Storagedevicelocationisveryflexible

(4)Easymanagementandlowcost

NASdatastoragemethodisdesignedbasedontheexistingenterpriseEthernetYes,itcommunicatesinaccordancewiththeTCP/IPprotocol,anddatatransmissioniscarriedoutbyfileI/O.

DisadvantagesofNAS:

(1)Lowstorageperformance(2)Lowreliability

SAN

SAN(StorageAreaNetwork)storageareanetwork

In1991,IBMintroducedESCON(EnterpriseSystemConnection)technologyintheS/390server.Itisaconnectionmethodforserverswithamaximumtransmissionrateof17MB/stoaccessstoragebasedonopticalfibermedia.Onthisbasis,amorepowerfulESCONDirector(FCSWitch)wasfurtherintroduced,andasetofthemostprimitiveSANsystemwasconstructed.

SANstoragehascreatedanetworkedstorage.Storagenetworkingconformstothetrendofnetworkedcomputerserverarchitecture.ThesupportingtechnologyofFC-SANisFCFiberChannel(FCFiberChannel)technology.ItisastandardintegrationestablishedbyANSIfornetworkandchannelI/Ointerfaces.FCtechnologysupportsHIPPI,IPI,SCSI,IP,ATMandotheradvancedprotocols.Itsbiggestfeatureistoseparatethecommunicationprotocolofthenetworkandequipmentfromthephysicaltransmissionmedium,sothatmultipleprotocolscanbetransmittedsimultaneouslyonthesamephysicalconnection.Ofcourse,SANcanalsobedeployedusingIPchannels---IP-SAN.

ThehardwareinfrastructureofFC-SANisFibreChannel,andtheSANbuiltwithFibreChannelconsistsofthefollowingthreeparts:

(1)Storageandbackupequipment:includingtapesanddisksAndCDlibrary,etc.

(2)FibreChannelnetworkconnectioncomponents:includinghostbusadaptercards,drivers,opticalcables,hubs,switches,bridgesbetweenFibreChannelandSCSI

(3)Applicationandmanagementsoftware:includingbackupsoftware,storageresourcemanagementsoftwareandstoragedevicemanagementsoftware.

TheadvantagesofFC-SAN:

(1)Easynetworkdeployment;

(2)High-speedstorageperformance.BecauseSANusesFibreChanneltechnology,ithashigherstoragebandwidthandstorageperformanceissignificantlyimproved.SAn'sfiberchannelusestheprincipleoffull-duplexserialcommunicationtotransmitdata,withatransmissionrateofupto1062.5Mb/s.

(3)Goodscalability.AstheSANadoptsthenetworkstructure,theexpansioncapabilityisstronger.Theopticalfiberinterfaceprovidesaconnectiondistanceof10kilometers,whichmakesitveryeasytoachievephysicalseparationandstorageoutsidethelocalcomputerroom.

Unifiedstorage

Afterenteringthe21stcentury,aunifiedstoragecombiningSANandNAShasevolved.Inthefollowingdecades,unifiedstoragehasalwaysbeenthemainstreamintheindustry.AccordingtoGartner'sforecast,theunifiedstoragemarketwillshrinkinthenext5years,butstilloccupyabout70%ofthemarketshare.

Distributedstorage

Facedwiththeexplosivegrowthofdatabroughtaboutbydigitaltransformation,distributedstoragebasedontheScale-outarchitecturehasachievedrapiddevelopment.Distributedstorageplatformshelpkeyindustriessuchasgovernment,telecommunications,energy,manufacturing,broadcasting,andfinancewithextremecapacity,minimalarchitecture,extremeperformance,andeasymanagementtomeetthemultiplechallengesoftheclouddigitalintelligenceera.

Ultra-large-scaledatacenter-leveldistributedstorage

Thedatacenter-leveldistributedstorageplatformisorientedtotheelasticconvergedcloudandhasmorepowerfulplatformcapabilities.Upgradefrom"onesetofarchitecture,fourservices"to"onesetofarchitecture,5+Xdualplatforms".Atthesoftwarelevel,AS13000G5integrates5serviceprotocolsoffile,object,block,HDFS,anddatabaseprotocolsandXfusionplatforms.Thehardwarelayerintegratesfivehardwareformsofrack,high-density,cabinet,multi-node,edge,andXhardwareconfigurations,whichcanfullyreleasethepotentialofsoftware-definedstorage,realizecapacityexpansionondemand,performanceondemandsupply,andserviceDefineondemand.

First,forsevenscenarios,thex86architecturegeneraldistributedstorageAS13000G5-Mislaunched.AS13000G5-MadaptstoIntel’slatestPurleyplatformandiscompatiblewiththesecond-generationXeonCPUofCascadeLake,whichcanmeettheneedsofdifferentapplicationscenariosinindustriessuchasbroadcastingandtelevisionmediaresourcesandsafecities.

Second,forhigh-performanceapplicationscenarios,releasetheindustry'sfirsthigh-performancedistributedstorageAS13000G5-PbasedontheOpenPOWERarchitecture.BasedonthePOWERarchitecture,theCPU3.8GHzhighfrequency,PCIe4.0+high-speedinterconnectedHBAcardbringsperformanceimprovement,achieving4Msequentialwriteperformanceincreaseby2times,sequentialreadperformanceincreasedby1.5times,4Krandomwriteperformanceincreasedby3times,randomreadperformanceincreasedby1.3Times.

Thirdly,formassiveHDviewscenes,4U60high-densitydistributedstorageAS13000G5-Hwasreleased,withasinglenodecapacityofnearly1PB,whichcancarry256ultra-high-definitionvideostreamsof1080pand4Mbpsstreamsforabout90daysTheamountofdata.

Fourth,tomeettheneedsofcloud-basedelasticdeployment,releasethehighlyflexibledistributedstorageAS13000G5-Xwithanall-in-onearchitecture,anduseasetofdistributedstoragetocarryinstancedataonthecloud,localreal-timedataandarchiveddata.Realizethefulllifecyclemanagementofdata.

Comparisonofstoragemethods

Comparisonofthreestoragemethods:DAS,NASandSAN

Thebiggestfeatureofstorageapplicationsisthatthereisnostandardarchitecture.ThesethreetypesofstorageWayscoexistandcomplementeachother,andtheyhavebeenwell-suitedforenterpriseinformatizationapplications.

Fromthecomparisonofconnectionmethods,DASusesstoragedevicestodirectlyconnecttoapplicationservers,whichhascertainflexibilityandrestrictions;NASconnectsstoragedevicesandapplicationsthroughnetwork(TCP/IP,ATM,FDDI)technologyThelocationofserversandstoragedevicesisflexible.Withtheemergenceof10Gigabitnetworks,thetransmissionratehasbeengreatlyimproved;FC-SANconnectsstoragedevicesandapplicationserversthroughFibreChanneltechnology,whichhasaverygoodtransmissionrate.Andextendedperformance.Thethreestoragemethodshavetheirownadvantages,coexistwitheachother,andaccountformorethan70%ofthediskstoragemarket.ThepriceofSANandNASproductsisstillmuchhigherthanthatofDAS.Manyuserschooselow-efficiencydirect-attachedstorageinsteadofhigh-efficiencysharedstorageforpricereasons.

Objectivelyspeaking,SANandNASsystemscanalreadyusetechnologieslikethinprovisioningtomakeupfortheinflexibleshortcomingsofearlystorageallocation.However,beforetheyconsumedtoomuchtimetosolvethestorageallocationproblemandincreasetheinternalchain,soastoleaveenoughtimeforDAStogainafootholdinthedatacenterfield.Inaddition,therearestillmanyproblemswithSANandNAS,whichstillcannotbesolved.However,SANisoftenusedintheconstructionoflarge-scalenetworkstorage,andithasgreatpotentialinthefuturewhenhybridstoragetechnologyismature.

Storagemediatype

1,harddisk

2,tape

3,opticaldisc

4,mobileStorageequipment

5,networkdisk,clouddisk

networkfunction

connectionstorage

Compellentstoragecenteradoptsmobiledatatechnology,whichcanBringanall-in-onestoragearraythatcanalwaysputdataintherightplaceattherighttimetoachievetherightcost-andcanbedynamicallyadjustedtomeetchangingbusinessneeds.

TheDellCompellentstoragecenterisanenterprise-leveldatastoragearraythatcanuselessdisks,power,andspacetoachievehighperformance.Infact,withthehelpofmobiledatastorage,yourunitGBcostcanactuallydropasyougrow.

Storagevirtualization:Storagevirtualizationisperformedatthediskleveltocreateanultra-efficient,high-performancestoragepoolthatcanbesharedbyallserversandapplications.

Thinprovisioning:Configurevirtualvolumesofanysizeintheearlystage,butonlyoccupyphysicalcapacitywhenwriting.

Automaticallyperformtieredstorage:Usingsophisticatedreal-timeintelligence,snapshotsandinactivedatacanbeautomaticallymovedtolower-costdrives,whilenewwrittendataandactivedataremainonhigh-performancedrivessuperior.

Flexibility

DellCompellentstoragecenterscanlayasolidfoundationforflexiblegridstorage,allowingyoutoscaleupandscaleoutwithdynamicbusinesscontinuity.Inaddition,youwillnotcauseanydowntimeorinterruptionduringexecution.

Technologyindependence-mixandmatchthelatestdriveandinterconnecttechnologies,andeasilyadoptthemwhennewtechnologiescomeout.

Non-disruptivearchitecture-withoutinterruptingoperationsorsuspendingdataaccess,youcanaddcapacity,dynamicallychangesystemconfigurations,andlaunchnewfeaturesonline.

Unifiedstoragemanagement-Useasingletooltomanageyourentirestorageinfrastructure,andsavetimeandeffortwithbuilt-inautomation.

Dynamicbusinesscontinuity-non-disruptivemigrationofvolumesbetweenstoragearraysandlocaldatacenters,creatinganon-demandcloudinfrastructure.

Resilience

DellCompellentStorageCenterSANenablesyoutocontinuouslyprotectyourdatafromdowntimeanddisasterswithouttheneedforfullvolumecloning,capacitypre-allocationorhigh-speeddatalinks.Fullyredundanthardwareandadvancedfailovercapabilitiescanhelpensurehighavailability.

Space-savingsnapshots:Aftertheinitialsnapshotiscreated,onlyincrementalchangestothedataneedtobecaptured,allowingyoutocreatecontinuoussnapshotstorestoretoanypointintimenear-instantaneously.

Streamlinedreplication:ThroughFibreChannelorIPconnection,economicallyandeconomicallyperformsynchronousorasynchronousdatareplication.Aftertheinitialsitesynchronization,onlysubsequentchangesneedtobereplicated.

High-availabilityarchitecture:Withclustercontrollers,automatedfailover,dual-pathfromservertodrive,virtualizedports,andfullyredundantpowersuppliesandfans,uninterrupteddataaccessisachieved.Experiencefirst-classenterprisesupportthatcanrespondinstantly.

Efficientlymanageandvirtualizeyourdata

WiththehelpoftheDellCompellentstoragecenterusingmobiledatatechnology,optimizeefficiency,flexibilityandflexibilitytohelpreducestoragecostsbyupto80%,Scaleonasingleplatformandprotectdatafromdowntimeanddisasters.

Practicalapplicationsolutions

HDinformationstorage

ForHDplatformstorage,therearegenerallytwotypesofstorage:distributedstorageandcentralizedstorage;Storagedevicesgenerallyinclude:NVR(NetworkVideoRecorder)networkvideorecorderandIPSANtwostoragedevices.Amongthem,asanemergingproduct,NVRplaysaveryimportantroleinthepopularizationofnetworkcameras,especiallyhigh-definitioncameras.Itsmainfunctionistorecordandstorenetworkvideostreams,andprovidereal-timedisplayandproxyforwardingfunctions.Usingembeddedarchitecture,harddecodingsupportsmulti-channelnetworkSDorHDcameraaccess.TakeTiandiweiye’sembeddedNVRasanexample,itcansupport16-channelSDor8-channelhigh-definitionnetworkcameraaccess;embeddedharddecoding,real-timepreviewandvideorecording;built-inharddiskbayscanstore;built-inproxyforwardingmodulecanTheconnectedvideostreamisforwarded;inaddition,ithastwooutputinterfaces,VGAandBNC,whichcanbedecodedanddisplayedonthewall;inaddition,itcanalsobeusedasanodedevicefornodemonitoringanddistributedstorageinthesystem;anotherimportantaspectofhigh-definitionstorageTheequipmentisIPSAN.Withthepopularityofhigh-definition,IPSANplaysanincreasinglyimportantroleinstorage.IPSANadoptstheEthernettransmissionoftheIParchitecture,whichhasgoodscalability,sharingandlowapplicationcost.Itisamulti-channelhigh-definitionSurveillancestorageisoneofthemaintechnologies,andmostofthestoragemediastorageisourcommonharddisk,thecapacityisgenerallyTBlevel,asthe2TBharddiskorevenhighercapacityproductscomeintooursight,largeHDsurveillancesystemPB-levelmassstorageThesolutionhasalsobeenwidelyused.

OneoftheproblemsfacedbyHDstorageisthatinhigh-definitionprojectswithalargenumberofmulti-levelnetworking,ifthecostofstorageisreduced,ontheonehand,thisrequiresimprovementincompressionalgorithms,andontheotherhand,thecostofharddrivesandIPSANneedstobereduced.Intermsofalgorithms,therearealreadymanufacturersthatcantransmit720Phigh-definitionimageswith2Mstream,sothatthestoragespaceforone-hourhigh-definitionisabout1.8G.

Scenario-basedsolutions

Themorerepresentativesolutionsinthestoragefieldinclude:videocloudstorageintegrationsolution,mediaassetcloudstorageintegrationsolution,etc.

Thevideocloudstorageintegrationsolutionistopackagethestreamingmediaplatform,controlplatform,streamingmediagatewayandothercomponentsofthevideomanufacturerintothesoftwaresystemofInspurdistributedstorage,anddotheplatformdockingtoprovidereal""StreamDirectStorage"servicerealizesend-to-enddatastorageforvideoscenes.Specifically,aftertheInspurdistributedstoragesoftwaresystemisincorporatedintothevideocontrolplatformandothercomponents,ontheonehand,itformsacomponentecologyinthevideoscene.Atthesametime,throughitsgatewayfeature,itcanbeupwardlycompatiblewiththird-partyplatformsofallvideomanufacturersandcanprovideDistributedstorageservicesensurehighreliability,highperformance,easyexpansion,andeasymanagementofvideoapplicationdata,therebyformingacompletepackagedsolutioninvideoscenarios.

Themediaresourcecloudstorageintegrationsolutionistointegratethedatamanagementandeditingplatforminthebroadcastingmediaresourceapplicationscenariointoadistributedstoragesystem,anditcansupportcompatibledocking.Themediaresourcecloudstorageintegrationsolutioncansupporttheconnectionbetweenupper-layermediaresourceapplicationsandtheunderlyingstorage,andtheperformanceremainslinearlyscalable.Whileensuringtheperformanceandstabilityofonlinevideoeditingandnon-onlinevideoeditingapplicationsinthemediaassetscenarioapplicationofelectroniccustomers,thesolutionintegratesthemediaassetmanagementsystemplatformandstoragesystemthroughtheintegrationofmediaassetdockingsoftwaretoreduceThecustomer'sTCO.

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