Vplex产品及技术手册VIP专享VIP免费

ProductandTechnologyOverview1Uponcompletionofthismodule,youshouldbeableto:Module1:VPLEXProductandTechnologyDetailsCopyright©2011EMCCorporation.AllRightsReserved.•DescribecommonVPLEXterminologyandconfigurations•DescribetheVPLEXproducthardwareandsoftwarearchitecture•DescribehowVPLEXintegratesintoanexistingenvironment•ListanddescribevarioususecasesforVPLEX•DescribethelifeofanI/OoperationinVPLEXProductandTechnologyOverview2Uponcompletionofthislesson,youshouldbeableto:VPLEXProductandTechnologyDetailsCopyright©2011EMCCorporation.AllRightsReserved.VPLEXTerminology,Capabilities,andUseCases•ListanddefinecommonVPLEXterminology•DescribeVPLEXarchitecture,capabilities,LocalandDistributedFederationandVPLEXusecasesVPLEXTerminologyCopyright©2011EMCCorporation.AllRightsReserved.ProductandTechnologyOverview3TermDefinitionStorageVirtualizationIsavirtuallayerbetweenhostsandstorage,abstractingthephysicalelementsintologicalviewswithinasinglesite.VirtualStorageTheseparationofinformationfromphysicalstoragemediaandlocation.VirtualStorageisnotstoragevirtualization.Itallowstheseamlessmobilitybetweenthedatacenterandcloud.LocalFederationProvidesthetransparentcooperationandmobilitybetweenstorageelementstoenabledatatobeshared,accessed,andrelocatedtransparentlywithinasinglesite.DistributedFederationProvidesthetransparentcooperationandmobilitybetweenstorageelementstoenabledatatobeshared,accessed,andrelocatedtransparentlybetweentwolocationsatsynchronousdistances.EMCVPLEX™FamilyTheworldsfirstlocalanddistributedfederationplatformVPLEXLocal™ProvidestransparentcooperationandmobilityofphysicalelementswithinasiteVPLEXMetro™Extendsaccessbetweentwolocationsatsynchronousdistanceswithlessthan5mslatencyVPLEXTerminologycontinuedCopyright©2011EMCCorporation.AllRightsReserved.ProductandTechnologyOverview4TermDefinitionVPLEXGeo™Addssupportdatamobilityandaccessbetweentwositesoverextendedasynchronousdistancesandisplannedfor2011.VPLEXGlobal™Datamobilityandaccess“anywhere”.VPLEXGlobalwillincludemultiplelocationsandserviceproviderswithunlimiteddistancesandisplannedforafuturerelease.CacheCoherencyIstheconsistencyofdatastoredinlocalcachesofasharedresourceDistributedCacheCoherencyProvidesautomaticsharing,balancing,andfailoverofI/OacrosstheclusterAccessAnywhere™Cachecoherencytechnologythatenablesaconsistentviewofdatatobepresented,shared,accessed,andorrelocatedbetweenfederatedVPLEXMetroclustersGeoSynchrony™SoftwarethatrunsontheVPLEXhardwareMetadataVolumeAvolumethatcontainsvirtual-to-physicalmappinginformation.EveryVPLEXclusterrequiresaMetadatavolume.LoggingVolumeAvolumeusedtokeeptrackofchangestoadistributeddevice.VPLEXTerminologycontinuedCopyright©2011EMCCorporation.AllRightsReserved.ProductandTechnologyOverview5TermDefinitionStorageVolumeTheunderlyingphysicalblockstoragevolumepresentedfromthearraytoVPLEX.StoragevolumesarealsoknownasarrayLUNs.ExtentThefirstlevelofpresentationofastoragevolume,whichcanbedividedintomultipleextentsorasingleextent(iftheentirestoragevolume’scapacityisused)DeviceAstorageobjectformedfromoneormoreextentsordevices.AdevicesalsohasaRAIDlevelof0,1,orC.Devicescanbeusedtocreatevirtualvolumes.VirtualVolumeAVPLEXvolumethatiscreatedandpresentedtothehost.Thisvolumehasaone-to-onerelationwithadevice.DistributedVolumeAvolumewithcompletesynchronizedcopiesofdata(mirrors)inmorethanoneclusterStorag...