儲存環境中的極速網路架構 呂季樽系統顧問. Dell Networking

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1 儲存環境中的極速網路架構 呂季樽系統顧問 Dell Networking

2 Agenda Current Storage Network Trend Dell Networking Solution 2 Product Management

3 How has this impacted data center networks? Data centers are actively adopting 10GbE today Standards set for 40GbE and 100GbE data center fabrics Rising bandwidth demand New topologies Complexity & cost Within 3 years, more than 75% of data center traffic will be server-to-server ( East-West ) rather than client-server ( North-South ) 1 Growth in NAS capacity outpaced growth in Fibre Channel SAN in Multiple networks, interconnects & protocols = multiple teams & specialized expertise 25% of large enterprises and 33% of midsize companies list Managing Costs among top storage-related pain points 2 3

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5 Storage and other mission-critical traffic need special handling and priority delivery High Performance Computing Primary Block Storage Virtualized Data Centers File Sharing Virtual Desktop Infrastructures 5 Distributed Compute Applications

6 Fabric Roadmaps Infrastructure migrates to Ethernet irrespective of storage protocols Convergence and virtualization are driving enhancements to Ethernet DCB 100M 1G 10G 40G 100G EN (Ethernet) iscsi FCoE FC (Fibre Channel) 1G 2G 4G 8G 16G 32G?

7 Trend-1: Changing traffic dynamics 1 Campus Networking Internet Networking Fabrics Hybrid / Public Cloud 1. North-South User-Data Center DC to Internet 2. East-West Server/VM-Server/VM Server-Storage 2 Blade Infrastructure Rack Infrastructure 7 Product Management

8 Trend-2: The changing Data center core Modular Migration to Fixed Form Factor Conventional Chassis Core Fabrics Density: Fixed vs. Chassis 40G per Line Rate (L3) Power: Fixed vs. Chassis Max Watts / Line Rate 40G (L3) Chassis Fixed Chassis Fixed Source: Dell Oro, Product Management

9 Trend-3: 40GbE to mass market 10GbE to servers fuelled mass shipment of 40GbE on fixed form factor switches in Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Dell Shipping 40GbE E I J H C 1 VENDOR 3 VENDORS MOST VENDORS Source: Dell Oro, reporting started 3Q11 9 Product Management

10 Unified Sys Mgmt and Automation Trend-4: Convergence Compute + storage + networking + management Servers Network 40G Data center fabric VI/OS Storage Compute Network West East Virtual Infrastructure & OS Storage Legacy Systems Mgmt 10 Product Management

11 Data center bridging (DCB)

12 DCB Enhancements in switch (Full DCB support) Priority-Based Flow Control. HALT an individual stream, but NOT all of them! Bandwidth Management 802.1Qbb (Per-Priority Flow Control) 10GE Link End-to-End Congestion Management. Between endpoints, tells the end-point to BACK OFF! DCBx 802.1Qau (Congestion Management) 802.1Qaz (Enhanced Transmission Selection) 5G 4G 1G t 1 10GE Link 3G 3G 4G t 2 Neighbor Discovery Configuration Exchange. Identifies end-point capabilities. 12 Confidential iscsi TLV creates dedicated priority (for EQL arrays) and offers guaranteed bandwidth which reduces congestion, associated retries and reordering of data

13 Network Adaptor convergence NIC & HBA to CNA LAN SAN A SAN B NIC CNA HBA NIC CNA HBA

14 Traditional and Active Fabric Compared Core Force10 Force10 Force10 Aggregation Force10 Force10 Force10 Force10 Access Scalable 14 Start with minimum Spine and Leaf nodes, add more as needed (up to ports) Supports large layer 2 and Layer 3 networks Resilient No spine node carries significant percentage of core traffic (100/n %) A 16 spine design results in 6.25% traffic loss versus a 50% loss in the case of a centralized two core box solution Efficient With a 16 spine design 93.75% total network utilization available on a node failure versus 50% with traditional Dual Chassis core design.

15 Active Fabric vs. Chassis design Active Fabric Support for L2 and L3 Features Support large # of interfaces Support for variety of interfaces Copper or Fiber 1G/10G/40G Redundant PSUs Redundant Fabric connections If equipment failure lose 1:N throughput Chassis Design Support for L2 and L3 Features Support large # of Interfaces Support for variety of interfaces Copper of Fiber 1G/10G (40G ToR only) Redundant PSUs Redundant Fabric connections If equipment Failure lose ½ throughput Z G 10G

16 16 Virtual Link Trunking (VLT)

17 VLT Failure Scenario VLT Ports failure on one unit Node B Node B LAG LAG VLT VLT Unit 1 Unit 2 Unit 1 Unit 2 VLT VLT LAG Node E LAG Node E

18 VLT Failure Scenario Failure of one of the units Node B Node B LAG LAG VLT VLT Unit 1 Unit 2 Unit 1 Unit 2 VLT VLT LAG Node E LAG Node E

19 VLT Failure Scenarios VLT Trunk Interconnect Failure On VLTI Failure, the VLT ports on the Secondary VLT peer will be brought Down so as to avoid Split brain issues Node B LAG Node B LAG Unit 1 Primary VLT Unit 2 Secondary Unit 1 Primary VLT Unit 2 Secondary VLT VLT LAG Node E LAG Node E

20 VNA Solution with FTOS Product Management

21 Feature-rich software innovation FTOS software maximizes data center networking functionality Proven Reliable Flexible Modular FTOS Hardware abstraction layer S-Series TOR/Access Systems C-Series Aggregation Systems E-Series Core Systems Z-Series Distributed Core Systems Common software functionality across all platforms

22 Dell Networking Product Portfolio Campus & Data Center Chassis Switches C150/300 E600/E1200i Modular Blade I/O 1G 10G 10G/FC 10/40G M6220 M6348 M8024-k M8428-k MXL Fabric & Access Switches 1G 10G 10G/FC 10/40G S55/S S4810 / S4820T 8100 S5000 Z9000 S6000 Wireless & BYOD Controllers & Access Points Indoor Instant access Points w/ builtin controller Guest access and BYOD Outdoor W-series ClearPass

23 Take advantage of the Power of Ten Increase bandwidth 10x for your applications MXL blades S4810/20T S5000 S6000 Reduce capital expenses by up to 30% in chassis deployments simplifying cabling & management in a blade infrastructure FTOS-powered 10Gb top of rack switches deliver integrated support for SDN, virtualization, automation & storage networks Dell s first fully modular 1RU switch for LAN/SAN convergence delivering 10Gb Ethernet and 8Gb Fibre Channel in a flexible pay-asyou-grow design High performance & high density 10/40Gb switch to support today s virtualized & cloud data centers

24 24 Why Dell?

25 Why Dell? Active Fabric Active-Actice VLT S4810 S4810 Core Aggregation Servers ToR switch LAG Dell S4810 Blade switch 1U Form Factor Convergence Fiber / Copper 25 Dell Networking S5000 Dell 4820T

26 Let Dell help you simplify your data center fabric For more information please visit 26