fcoe及存儲整合

1、,,,保持存儲最佳實踐，無論使用什么樣的連接保持數(shù)據(jù)流量工程設(shè)計原則提升可靠性，冗余性及速度保證基于角色的訪問控制增加距離，吞吐量及靈活性減少部署和開通的時間給客戶選擇而不是被迫選擇,聚合存儲網(wǎng)絡(luò)意味著...,,,,,一次布線，無限連接,,,,,,,,,,,,,,NAS,iSCSI,MDS / Nexus統(tǒng)一網(wǎng)絡(luò),FC,FCoE,3/19/2024,Cisco Systems Inc.,3,I/O consolidatio

2、n Phase 1 (Mid 2008)Reduction of server adaptersSimplification of access layer & cablingGateway free implementation – fits in installed base of existing LAN and SANL2 Multipathing Access – DistributionLower TCO

3、Fewer CablesInvestment Protection (LANs and SANs)Consistent Operational Model,Today:Parallel LAN/SAN InfrastructureInefficient use of Network Infrastructure5+ connections per server – higher adapter and cabling cos

4、tsAdds downstream port costs; cap-ex and op-exEach connection adds additional points of failure in the fabricLonger lead time for server provisioningMultiple fault domains – complex diagnosticsManagement complexity

5、,I/O Consolidation,,,Enhanced Ethernet and FCoE,Ethernet,FC,,,Ethernet,IP,Network Stack Comparison,TCP,iSCSI,FCIP,FCoE,,FC,FCP,SCSI,PHYSICAL WIRE,,,,,,SCSI,iSCSI,FCIP,FCoE,FC,,,,Fibre Channel over EthernetWhat enables i

6、t?,10Gbps EthernetLossless EthernetMatches the lossless behavior guaranteed in FC by B2B creditsEthernet jumbo framesMax FC frame payload = 2112 bytes,Same as a physical FC frame,Control information: version, ordered

7、 sets (SOF, EOF),Normal ethernet frame, ethertype = FCoE,Unified FabricWhy?,Can you name one technology that you can guarantee will be in the Data Center in 5 years?It’s Ethernet !!!Cost per byte for storage traffic w

8、ill be cheaper and more flexible over an Ethernet fabric,,,,,DCB “Virtual Links”An example,,,,VL1,VL2,VL3,LAN/IP Gateway,VL1 – LAN Service – LAN/IP,VL2 - No Drop Service - Storage,Ability to support QoS queues within th

9、e “l(fā)anes”,,,,,,,,,,,,Campus Core/Internet,Storage AreaNetwork,,Priority Flow ControlFibre Channel over Ethernet Flow Control,,B2B Credits,Enables lossless Ethernet using PAUSE based on a COS as defined in 802.1pWhen

10、link is congested, CoS assigned to FCoE will be PAUSEd so traffic will not be droppedOther traffic assigned to other CoS will continue to transmit and rely on upper layer protocols for retransmission,,Enhanced Transmiss

11、ion StandardBandwidth Management -- IEEE 802.1Qaz,Required when consolidating I/O – It’s a QoS problemPrevents a single traffic class of “hogging” all the bandwidth and starving other classesWhen a given load doesn’t

12、 fully utilize its allocated bandwidth, it is available to other classes Helps accommodate for classes of a “burtsy” nature,,,,,,,,HP/IBM FC Blade Switch,MDS 9124,中小企業(yè)解決方案,思科存儲網(wǎng)絡(luò)產(chǎn)品,,Cisco NX-OS,,大型企業(yè)和運行商解決方案,MDS 9506, 9

13、509, 9513,Nexus 7010, 7018,7009,Nexus 5596UP,Nexus 2232,Nexus 4000,Nexus 5548UP,MDS 9222i,MDS 9148,Cisco DCNM,FCoE,FC,Nexus 5010/5020,,,,Nexus 5596UP 和5548UP,益處 / 適用場景,,高密度1RU/2RU 架頂式交換機10GE / 1GE / FCoE / 8G FC倒轉(zhuǎn)的氣流方向

14、/電源模塊,創(chuàng)新,,為虛擬數(shù)據(jù)中心提供最低的總體擁有成本,提升DC接入能力!,Nexus 5548 Series2nd Generation Nexus 5000 with FabricPath & Layer 3,Flexible port configurations10GE/FCoE/DCB, 2/4/8 G FC, 1GELayer 2 / Layer 3 supportSupport for increased

15、 number of FEX per N5500 (future)4K VLANs40G Uplinks (future),Unicast latency: < 2μsFabricPath - Layer 2 Multi-Pathing SupportIETF TRILL & Cisco L2MPStandards-based T11 FCoEHardware support for IEEE 1588 (Pr

16、ecision Time Protocol – µs accuracy & timestamp),32 Fixed Ports capable of 1/10GE,Expansion Module Slot,Nexus 5596 Series – Q1CY11Nexus 5000 with FabricPath & Layer 3,96 Ports capable of 10GE/1GE/FCoE/FC (U

17、nified Port)Shown populated with three unified port capable expansion modules,Three Expansion Module Slots,16 x 1/10GE,8 x 1/10GE + 8 x 1/2/4/8G FC,16 unified ports individually configurable as 1/10GE or 1/2/4/8G FC,L3

18、 support for 160G of L3 I/O bandwidth,Any 10GE port can also be configured for FCoE with a licenseA license is also required to enable storage services on FC ports,,,,統(tǒng)一端口,動態(tài)及有效的端口分配,適用環(huán)境,Native FC,靈活的LAN及存儲聚合，基于業(yè)務(wù)的需求

19、可根據(jù)特定的流量調(diào)整服務(wù),用于Nexus 5548及5596的擴展模塊Nexus 5596UP的所有端口,,,Lossy/Lossless Ethernet – FCoE, iSCSI, NAS,益處,簡化交換機購買－不需要再猜測端口比例增加設(shè)計靈活性去除特定協(xié)議帶寬瓶頸,,可用性,Physical and Logical separation of LAN and SAN trafficAdditional Physical

20、 and Logical separation of SAN fabricsPurposely Built NetworksLAN: Loss and Out of Order TolerantSAN: Loss and Out of Order IntolerantLimited in Scale,Ethernet LAN and Fibre Channel SAN,HBA,,,L2,L3,,NIC,,Fabric ‘A’,F

21、abric ‘B’,,MDS 9000,Shared Physical, Separate Logical LAN and SAN traffic at Access LayerPhysical and Logical separation of LAN and SAN traffic at Aggregation LayerAdditional Physical and Logical separation of SAN fabr

22、icsStorage VDC (Nexus7000 only) for additional management / operation separationHigher I/O, HA, fast re-convergence for host LAN trafficEdge-Core TopologyUse where Core switch is required to provide Storage services

23、 to many Edge devices,Sharing Access Layer for LAN and SAN,,Isolation,Convergence,,Fabric ‘B’,,,,L2,L3,CNA,,Fabric ‘A’,,,,MDS 9000,,,LAN和SAN共用物理交換機并且使用固定的連接鏈路所有的接入和匯聚交換機都支持FCoE轉(zhuǎn)發(fā)Storage VDC (僅限Nexus7000)可提供額外的管理和操作分離比