Vplex产品及技术手册课件.ppt

1、Vplex产品及技术手册产品及技术手册VPLEX Product and Technology Details VPLEX Terminology,Capabilities,and Use Cases List and define common VPLEX terminology Describe VPLEX architecture,capabilities,Local and Distributed Federation and VPLEX use casesVPLEX TerminologyTermDefinitionStorage VirtualizationIs a virtual

2、 layer between hosts and storage,abstracting the physical elements into logical views within a single site.Virtual StorageThe separation of information from physical storage media and location.Virtual Storage is not storage virtualization.It allows the seamless mobility between the data center and c

3、loud.Local FederationProvides the transparent cooperation and mobility between storage elements to enable data to be shared,accessed,and relocated transparently within a single site.Distributed FederationProvides the transparent cooperation and mobility between storage elements to enable data to be

4、shared,accessed,and relocated transparently between two locations at synchronous distances.EMC VPLEX FamilyThe worlds first local and distributed federation platformVPLEX LocalProvides transparent cooperation and mobility of physical elements within a siteVPLEX MetroExtends access between two locati

5、ons at synchronous distances with less than 5ms latencyVPLEX Terminology continuedTermDefinitionVPLEX GeoAdds support data mobility and access between two sites over extended asynchronous distances and is planned for 2011.VPLEX GlobalData mobility and access“anywhere”.VPLEX Global will include multi

6、ple locations and service providers with unlimited distances and is planned for a future release.Cache CoherencyIs the consistency of data stored in local caches of a shared resourceDistributed Cache Coherency Provides automatic sharing,balancing,and failover of I/O across the clusterAccessAnywhereC

7、ache coherency technology that enables a consistent view of data to be presented,shared,accessed,and or relocated between federated VPLEX Metro clustersGeoSynchronySoftware that runs on the VPLEX hardwareMetadata VolumeA volume that contains virtual-to-physical mapping information.Every VPLEX cluste

8、r requires a Metadata volume.Logging VolumeA volume used to keep track of changes to a distributed device.VPLEX Terminology continuedTermDefinitionStorage VolumeThe underlying physical block storage volume presented from the array to VPLEX.Storage volumes are also known as array LUNs.ExtentThe first

9、 level of presentation of a storage volume,which can be divided into multiple extents or a single extent(if the entire storage volumes capacity is used)DeviceA storage object formed from one or more extents or devices.A devices also has a RAID level of 0,1,or C.Devices can be used to create virtual

10、volumes.Virtual VolumeA VPLEX volume that is created and presented to the host.This volume has a one-to-one relation with a device.Distributed VolumeA volume with complete synchronized copies of data(mirrors)in more than one clusterStorage ViewA view for hosts that defines which hosts can access whi

11、ch virtual volumes on which VPLEX portsVPLEX EngineConsists of two high-availability directors,redundant power supplies,integrated battery backup,and“Call Home”and remote support.EMC Vision for Virtual StorageEfficientSecureAlways-onAutomatedOn-DemandIntegratedFAST+Federation+Storage VirtualizationP

12、hysicalStorageCapabilities that free information from physical storageJourney to the Private CloudVPLEX Product FamilyMore than two sitesAnywhereTwo sitesExtended DistanceAsynchronousCluster WitnessUp to eight enginesUp to 16,000 LUNsTwo sitesUp to 5ms latencyOne to four engines8,000 LUNsSingle Site

13、Data CenterVPLEX 4VPLEX 5LaterVPLEX Architecture Next Generation Data Mobility and Access Scale Out Cluster Architecture Start small and grow big with predictable service levels Advanced Data Caching Improve I/O performance and reduce storage array contention Prefetch Operations Distributed Cache Co

14、herence Automatic sharing,balancing and failover of storage domains within and across VPLEX EnginesLocal and DistributedFederationAccess AnywhereVPLEX Local Overview Simplify provisioning and volume management Centralize management of block storage in the data center Physical storage needs to be pro

15、visioned once to the virtualization layer Non-disruptive data mobility Optimize performance,redistribute and balance work loads among arrays Domain Failure Can protect against failure domains such as an entire array going down Workload resiliency Improve reliability,scale out performance Storage poo

16、ling Manage available capacity across multiple frames based on SLAsMigrateVPLEX Local Configuration One Rack 1 4 Engines Fully redundant hardware N+1 performance and scaling More ports and more engines 1+N fault tolerance All directors but one can fail without causing Data U/Data LossSPS8-port FC sw

17、itch8-port FC switchSPSSPSSPSUPSUPSManagement serverVPLEX Metro Overview AccessAnywhere:Block storage access within,between and across data centers Within synchronous distances Less than 5 msec latency required Connect two VPLEX storage clusters together over distance Enables virtual volumes to be s

18、hared by both clusters Provides unique distributed cache coherency for all reads and writes Both clusters maintain the same identity for a volume,and preserve the same SCSI state for the logical unit Enables VMware VMotion over distance,faster than Storage MotionAccess AnywhereRemote Access or Migra

19、teVPLEX Metro Configuration Two Racks of fully redundant hardware 2 to 8 Engines total in a VPLEX Metro Each rack can consist of 1 4 engines FC-WAN 8 Gb Fibre Channel ports 4 per engine/2 per director 5 ms in round trip latencySPS8-port FC switch8-port FC switchSPSSPSSPSUPSUPSManagement serverSPS8-p

20、ort FC switch8-port FC switchSPSSPSSPSUPSUPSManagement serverAccess AnywhereSynchronousVPLEX Geo Overview AccessAnywhere Block storage access within,between and across data centers Within asynchronous distances Max 50 ms round-trip latency Enables virtual volumes to be shared by both clusters Provid

21、es unique distributed cache coherency for all reads and writes Both clusters maintain the same identity for a volume,and preserve the same SCSI state for the logical unitRemote Access or MigrateVPLEX Geo Configuration Two Racks of fully redundant hardware 2 to 8 Engines total in a VPLEX Geo Each rac

22、k can consist of 1 4 engines IP-WAN 10 Gb(1 Gb)Ethernet ports 4 per engine/2 per director 50 ms in round trip latencySPS8-port FC switch8-port FC switchSPSSPSSPSUPSUPSManagement serverSPS8-port FC switch8-port FC switchSPSSPSSPSUPSUPSManagement serverAccess AnywhereAsynchronousTypical VPLEX Use Case

23、s Data center consolidation Zero downtime data center Relocation Ability to move VM/data to new data center with no downtime Decommission the original data center Distributed load balancing Pre-emptive disaster avoidance Zero downtime maintenance Lease rolloversVPLEX Local Target Use CasesMobilitySi

24、mplify ManagementPool StorageMOBILITYVPLEX Remote Target Use CasesMobilityShare DataHigh AvailabilityVMCluster ACluster BSync/AsyncSync/AsyncVMSync/AsyncVPLEX Product and Technology Details VPLEX 4.X Architecture List and define VPLEX 4.X hardware and software architecture Describe product packaging

25、 Define how VPLEX VPLEX 4.X maps native array volumes to VPLEX virtual volumesVPLEX Metro VPN Creates a secure connect between the two management servers Uses x.509 certificates and 2048-bit RSA encryption Configured and setup during installation when using the EZ Setup WizardVPLEX ArchitectureVirtu

26、alVolumeVirtualVolumeVirtualVolumeVPLEXBE PortVPLEXBE PortVPLEXBE PortStorageVolumeStorageVolumeStorageVolumeManagementServerHostsDirectorsStorageVPLEXFE PortVPLEXFE PortVPLEXFE PortVirtualVolumeVirtualVolumeVirtualVolumeVPLEXBE PortVPLEXBE PortVPLEXBE PortStorageVolumeStorageVolumeStorageVolumeMana

27、gementServerHostsDirectorsStorageVPLEXFE PortVPLEXFE PortVPLEXFE PortWANFC/IP WANHardware Components Engine I/O Module I/O Carrier DAE and SSD card Power Supply Fan Management ServerVPLEX v4.0 Engine Overview Scale out cluster architecture Start small and grow big with predictable service levels Adv

28、anced data caching Improve I/O performance and reduce storage array contention Distributed cache coherency Automatic balancing and failover of storage domains within and across Data Centers Federated information access “AccessAnywhere”enables geographic data distributionVPLEX v4.0 EngineFrontRearDir

29、ector BDirector AVPLEX v4.0 I/O ModulesFront-EndBack-EndGigEGigECOMCOMABVPLEX v4.0 I/O Module CarrierIO CarrierVPLEX v4.0 I/O Module Types 4 port 8 Gbps Fibre Channel I/O Module Used for FC COM and FC WAN connectivity with an I/O Module carrierIO CarrierIO ModuleVPLEX v4.0 Management and Power Modul

30、esManagement ModulesPower SuppliesVPLEX v4.0 SPS LEDsVPLEX v4.0 Engine Fans Fans are monitored through the power supplies.Labeled A to D from left to right.Loss of one fan does not impact the system.System remains on for three minutes if two fans fail.VPLEX V4.X Configurations at a Glance Single Eng

31、ineDual EngineQuad EngineDirectors248Redundant Engine SPSsYesYesYesFE Fibre Channel ports163264BE Fibre Channel ports163264FC WAN Ports4816Cache64 GB128 GB256 GBManagement Servers111FC switches(For LCOM)None22UPSNone22VPLEX Product and Technology Details VPLEX 5.X Architecture List and define VPLEX

32、5.X hardware and software architecture Describe product packaging Define how VPLEX 5.X maps native array volumes to VPLEX virtual volumesVPLEX v5.0 Engine FrontRearDirector BDirector AVPLEX v5.0 I/O ModulesDirector BDirector AIOM B2WAN COMIOM B3Local COMIOM B0Front-endIOM B1Back-endIOM A2WAN COMIOM

33、A3Local COMIOM A0Front-endIOM A1Back-endVPLEX v5.0 I/O Module Types8 Gb/sFibre Channel10 Gb/sEthernetFiller Module(VPLEX Local)VPLEX v5.0 Management and Power/Fan modulesFrontRearDirector APS 0PS 1Director ADirector BDirector BPS 0PS 1VPLEX v5.0 SPS LEDsAmber=on batterySteady Green=OnlineBlinking Gr

34、een=ChargingVPLEX V 5.X Configurations at a Glance Single EngineDual EngineQuad EngineDirectors248Redundant Engine SPSsYesYesYesFE Fibre Channel ports81632BE Fibre Channel ports81632FC WAN Ports8163210 GbE WAN Ports4816Cache72 GB144 GB288 GBManagement Servers111FC switches(For LCOM)None22UPSNone22VP

35、LEX Product and Technology Details VPLEX Management and Packaging List and define VPLEX management hardware Describe product packagingVPLEX Management ServerVPLEX Management IP InfrastructureManagement ClientCustomerLANInternalIP LANInternalIP LANVPLEX CLusterSwitch and Management Server IP Formulas

36、Management Port Attached to A-side daisy chainManagement Port Attached to B-side daisy chainObjectsFormulaManagement ServerA-side daisy chain Management Port 128.221.252.(ClusterNumber*32+1)B-side daisy chain Management Port 128.221.253.(ClusterNumber*32+1)Service Port 128.221.252.2Customer Network

37、Port User AssignedFC SwitchesA-side FC Switch128.221.252.(ClusterNumber*32+2)B-side FC Switch128.221.253.(ClusterNumber*32+2)VPLEX Director IP FormulaObjectsFormulaDirector As port attached to A-side daisy chain128.221.252.(ClusterNumber*32+EngineNumber*2+1)Director As port attached to B-side daisy

38、chain128.221.253.(ClusterNumber*32+EngineNumber*2+1)Director Bs port attached to A-side daisy chain128.221.252.(ClusterNumber*32+EngineNumber*2+2)Director Bs port attached to B-side daisy chain128.221.253.(ClusterNumber*32+EngineNumber*2+2)Director ADirector BVPLEX Local IP LayoutManagement ServerMa

39、nagement Port for B-side network:128.221.253.33Service Port:128.221.252.2Management Port for A-side network:128.221.252.33Public LAN port:Customer Assigned IP Address FC Switch 1 IP Address:128.221.252.34Engine 4,Cluster 1Director A IP Addresses:128.221.252.41,128.221.253.41Director B IP Addresses:1

40、28.221.252.42,128.221.253.42Engine 3,Cluster 1Director A IP Addresses:128.221.252.39,128.221.253.39Director B IP Addresses:128.221.252.40,128.221.253.40Engine 2,Cluster 1Director A IP Addresses:128.221.252.37,128.221.253.37Director B IP Addresses:128.221.252.38,128.221.253.38Engine 1,Cluster 1Direct

41、or A IP Addresses:128.221.252.35,128.221.253.35Director B IP Addresses:128.221.252.36,128.221.253.36FC Switch 2 IP Address:128.221.253.34FC 2FC 1MSEngine 1Engine 2Engine 3Engine 4Fibre Channel COM Switches Connectrix DS-300B Creates redundant Fibre Channel network for COMEach director has two indepe

42、ndent COM paths to every other director Required on all VPLEX Medium and Large systemsDual use 4 ports per switchQuad use 8 ports per switch16 ports are unused/unlicensed(disabled)VPLEX Supported ConfigurationsSingle EngineQuad EngineDual EngineVolumes Required for Cluster Operations Metadata volume

43、 Required to hold VPLEX volume configurations within a cluster Front-end ports cannot be enabled without this volume Creation of a metadata volumes is part of installation Must be at least 78 GB Recommended to be mirrored across two arrays Follow stated best practices to backup metadata volumes when

44、 required Logging volume(VPLEX Metro only)Required for creating distributed devices Keeps track of blocks written during a loss of connectivity between clusters 10 GB logging can support 320 TB of distributed storage Receives a lot of I/O during link outages Should be fast(host on Fibre Channel disk

45、s)Management Server User Accounts Linux shell adminPerforms administrative user management actions SCP files onto the management server to the directories they have access toModify the public Ethernet settings serviceStarts and stops necessary OS and VPLEX Services VPLEX Management Console(CLI and G

46、UI)admin Access to the management server desktop,VPlexcli,and Management Console GUIAbility to start and stop management server servicesAccess to most files on the filesystem serviceAbility to create,modify,and delete VPLEX user accountsAccess to management server desktop,VPlexcli,and GUIAbility to

47、start and stop management server servicesVPLEX ConstructsInitiatorPortVPLEXFE PortVPLEXFE PortInitiatorPortStorage ViewVirtualVolumeTop-LevelDeviceExtentExtentExtentDeviceDeviceStorage VolumeStorage VolumeStorage VolumeConsistency GroupVPLEX Product and Technology Details VPLEX I/O Operations Descri

48、be the life of an I/O operation within a single cluster and VPLEX Metro Define caching layers,roles and interactions within a VPLEX system Describe system interaction during reads and writes Demonstrate path and system component redundancyCache CoherencyCache Directory DCache Directory FCache Direct

49、ory HCache Directory BCache Directory CNoImageCache Directory ECache Directory GCacheCacheCacheCacheEngine Cache Coherency DirectoryBlock Address1 2 3 4 5 6 7 8 910111213Cache ACache CCache ECache GEngine Cache Coherency DirectoryBlock Address1 2 3 4 5 6 7 8 910111213Cache ACache CCache ECache GCach

50、e Directory ANew Write:Block 3Read:Block 3How a Read is Handled Local Cache Hit Director searches its local cacheData exists and is delivered to host from local cache Global Cache Hit Director searches its local cacheData does not exist local cache miss Director check the global cache coherence tabl