Your SlideShare is downloading. ×
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Converged data center_f_co_e_iscsi_future_storage_networking
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Converged data center_f_co_e_iscsi_future_storage_networking

301

Published on

Published in: Technology
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
301
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
25
Comments
0
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. 1© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. FCoE, iSCSI AND THE FUTURE OF STORAGE NETWORKING David L. Black, Ph.D., Distinguished Engineer CONVERGED DATA CENTER
  • 2. 2© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Roadmap Information Disclaimer  EMC makes no representation and undertakes no obligations with regard to product planning information, anticipated product characteristics, performance specifications, or anticipated release dates (collectively, “Roadmap Information”).  Roadmap Information is provided by EMC as an accommodation to the recipient solely for purposes of discussion and without intending to be bound thereby.  Roadmap information is EMC Restricted Confidential and is provided under the terms, conditions and restrictions defined in the EMC Non- Disclosure Agreement in place with your organization.
  • 3. 3© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Agenda  Network Convergence  Protocols & Standards  Server Virtualization  Solution Evolution  Conclusion
  • 4. 4© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. 10Gb Ethernet Converged Data Center  Maturation of 10 Gigabit Ethernet – Single network simplifies mobility for virtualization/cloud deployments  10 Gigabit Ethernet simplifies infrastructure – Reduces the number of cables and server adapters – Lowers capital expenditures and administrative costs – Reduces server power and cooling costs – Blade servers and server virtualization drive consolidated bandwidth FCoE and iSCSI both leverage this inflection point LAN SANSingle Wire for Network and Storage 10 GbE
  • 5. 5© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Un-Converged Rack Servers • Servers connect to LAN, NAS and iSCSI SAN with NICs • Servers connect to FC SAN with HBAs • Some environments are still Gigabit Ethernet • Multiple server adapters, higher power/ cooling costs Rack-mount servers Ethernet Fibre Channel Ethernet LAN Ethernet Ethernet NICs Storage Fibre Channel SAN Fibre Channel HBAs Ethernet iSCSI SAN Note: NAS is part of the converged approach. Everywhere that Ethernet is used in this presentation, NAS can be part of the unified storage solution
  • 6. 6© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Agenda • Network Convergence • Protocols & Standards • Server Virtualization • Solution Evolution • Conclusion
  • 7. 7© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. IP Network iSCSI Introduction  Transport storage (SCSI) over standard Ethernet – Reliability through TCP  More flexible than FC due to IP routing – Effectively reaches lower-tier servers than FC  Good performance  iSCSI has thrived – Especially where server, storage, and network admins are the person – Example: IaaS Clouds ▪ E.g., OpenStack Link IP TCP iSCSI SCSI
  • 8. 8© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. iSCSI Introduction (continued)  Standardized in 2004: IETF RFC 3720 – Stable: No major changes since 2004 – NEW: Consolidated spec (RFC 7143), minor updates (RFC 7144) ▪ Backwards-compatible with existing implementations  iSCSI Session: One Initiator and one Target – Multiple TCP connections allowed in a session  Important iSCSI additions to SCSI – Immediate and unsolicited data to avoid round trip – Login phase for connection setup – Explicit logout for clean teardown
  • 9. 9© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. iSCSI Read Example Optimization: Good status can be included with last “Data in” PDU Command Complete Receive Data SCSI Read Command Initiator Target Status Data in PDU Target Data in PDU Data in PDU
  • 10. 10© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. iSCSI Write Example Optimization: Immediate and/or unsolicited data avoids a round trip Status Initiator Ready to Transmit Target SCSI Write Command Ready to Transmit Command Complete Receive Data Receive Data Data out PDU Data out PDU Data out PDU Data out PDU
  • 11. 11© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. CRCEthernet Header IP TCP iSCSI iSCSI Encapsulation Delivery of iSCSI Protocol Data Unit (PDU) for SCSI functionality (initiator, target, data read/write, etc.) Provides IP routing capability so packets can find their way through the network Reliable data transport and delivery (TCP windows, ACKs, ordering, etc.) Also demux (port numbers) Provides physical network capability (Cat 6a, MAC, etc.) Data
  • 12. 12© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. FCoE: Another Option for FC  FC: large and well managed installed base – Leverage FC expertise / investment – Other convergence options not incremental for existing FC  Data Center solution for I/O consolidation  Leverage Ethernet infrastructure and skill set FCoE allows an Ethernet-based SAN to be introduced into an FC-based Data Center without breaking existing administrative tools and workflows
  • 13. 13© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. FCoE Extends FC on a Single Network Network Driver FC Driver Converged Network Adapter Server sees storage traffic as FC FC Network FC Storage Ethernet Network FCoE Switch Lossless Ethernet SAN sees host as FC Ethernet FC
  • 14. 14© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. FCoE Frames  FC frames encapsulated in Layer 2 Ethernet frames – No TCP, Lossless Ethernet (DCB) required – No IP routing  1:1 frame encapsulation – FC frame never segmented across multiple Ethernet frames  Requires at least Mini Jumbo (2.5k) Ethernet frames – Max FC payload size: 2180 bytes – Max FCoE frame size: 2240 bytes Ethernet Header FCoE Header FC Header FC Payload CRC EOF FCS FC Frame
  • 15. 15© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. FCoE Initialization • Native FC link: Optical fiber has 2 endpoints (simple) – Discovery: Who’s at the other end? – Liveness: Is the other end still there? • FCoE virtual link: Ethernet LAN or VLAN, 3+ endpoints possible – Discovery: Choice of FCoE switches – Liveness: FCoE virtual link may span multiple Ethernet links • Single link liveness check isn’t enough, where’s the problem? • FCoE configuration: Do mini jumbo (or larger) frames work? • FIP: FCoE Initialization Protocol – Discover endpoints, create and initialize virtual link with FCoE switch – Mini jumbo frame support: Large frame is part of discovery – Periodic LKA (Link Keep Alive) messages after initialization Ethernet is more than a cable
  • 16. 16© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. FCoE Switch Discovery Step 1: FIP Solicitation FCoE/FC Switches DCB Ethernet FC SAN  Select FCoE VLAN first (pre-config or FIP)  Multicast Solicitation: Server can discover multiple switches  Solicitation identifies Server (FC WWN for FCoE CNA) – CNA = Converged Network Adapter (FCoE analog of HBA) – Switch chooses servers to respond to (default: respond to all) Solicitation Server
  • 17. 17© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. FCoE Switch Discovery Step 2: FIP Advertisement FCoE/FC Switches DCB Ethernet FC SAN  Advertisement identifies switch – Multiple switches may respond, advertisement includes priority – Server chooses FCoE switch by priority (smallest number wins)  Advertisement padded to max FC frame size: Test mini jumbo frames Advertisement Advertisement Priority = 1 Priority = 25 Server
  • 18. 18© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. FIP Switch Discovery Step 3: FIP-based FC Login FCoE/FC Switches DCB Ethernet FC SAN  FIP encapsulated FC Login – Server sends FC Fabric Login (FLOGI) to selected switch – Switch responds with FC FLOGI ACC (accept) with assigned FCID  All further traffic is standard FC frames (FCoE encapsulated) Priority = 25 FLOGI FLOGI ACC Server Priority = 1
  • 19. 19© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. FCoE and Ethernet Standards Fibre Channel over Ethernet (FCoE) – Developed by INCITS T11 Fibre Channel (FC) Interfaces Technical Committee – Enables FC traffic over Ethernet – FC-BB-5 standard: June 2009 – FC-BB-6 expands solution Data Center Bridging (DCB) Ethernet • Developed by IEEE Data Center Bridging (DCB) Task Group • Drops frames as rarely as FC • Commonly referred to as Lossless Ethernet • DCB: Required for FCoE • DCB: Enhancement for iSCSI Two complementary standards Participants: Brocade, Cisco, EMC, Emulex, HP, IBM, Intel, QLogic, others
  • 20. 20© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. FC-BB-6 – New FCoE features  Direct connection of servers to storage – PT2PT [point to point]: Single cable – VN2VN [VN_Port to VN_Port]: Single Ethernet LAN or VLAN  Better support for FC fabric scaling (switch count) – Distribute logical FC fabric switch functionality – Enables every DCB Ethernet switch to participate in FCoE More from Connectrix: Storage Networking (FC/FCoE/iSCSI/VSN) Technology & Best Practice Update Mon 8:30am and Tue 3:00pm
  • 21. 21© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Lossless Ethernet (DCB)  IEEE 802.1 Data Center Bridging (DCB)  Link level enhancements: 1. Enhanced Transmission Selection (ETS) 2. Priority Flow Control (PFC) 3. Data Center Bridging Exchange Protocol (DCBX)  DCB: network portion that must be lossless – Generally limited to data center distances per link – Can use long-distance optics, but uncommon in practice DCB Ethernet provides the Lossless Infrastructure that enables FCoE. DCB also improves iSCSI.
  • 22. 22© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Enhanced Transmission Selection • Management framework for link bandwidth • Priority configuration and bandwidth reservation – HPC & storage traffic: higher priority, reserved bandwidth • Low latency for high priority traffic – Unused bandwidth available to other traffic DCB part 1: IEEE 802.1Qaz [ETS] Offered Traffic t1 t2 t3 Link Utilization (10Gig link) 3G/s HPC Traffic 3G/s 2G/s 3G/sStorage Traffic 3G/s 3G/s LAN Traffic 4G/s 5G/s3G/s t1 t2 t3 3G/s 3G/s 3G/s 3G/s 3G/s 2G/s 3G/s 4G/s 6G/s
  • 23. 23© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Switch A Switch B PAUSE and Priority Flow Control • PAUSE can produce lossless Ethernet behavior – Original 802.3x PAUSE affects all traffic: rarely implemented • New PAUSE: Priority Flow Control (PFC) – Pause per priority level – No effect on other traffic – Creates lossless virtual lanes • Per priority flow control – Enable/disable per priority – Only for traffic that needs it DCB part 2: IEEE 802.1Qbb & 802.3bd [PFC]
  • 24. 24© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Data Center Bridging Capability eXchange • Ethernet Link configuration (single link) – Extends Link Layer Discovery Protocol (LLDP) • Reliably enables lossless behavior (DCB) – e.g., exchange Ethernet priority values for FCoE and FIP • FCoE virtual links should not be instantiated without DCBX DCB part 3: IEEE 802.1Qaz [DCBX] FCoE/FC Switches DCB Ethernet FC SAN Server DCBX
  • 25. 25© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Ethernet Spanning Trees  Reminder: FCoE is Ethernet only, no IP routing – Ethernet (layer 2) is bridged, not routed  Spanning Tree Protocol (STP): Prevents (deadly) loops – Elects a Root Switch, disables redundant paths  Causes problems in large layer 2 networks (for both FCoE and iSCSI) – No network multipathing – Inefficient link utilization SiSiSiSi SiSi SiSi SiSiSiSi SiSi Root Switch
  • 26. 26© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. SiSiSiSi SiSi SiSi SiSiSiSi SiSi Ethernet Multipathing: SPBM and TRILL  SPBM = Shortest Path Bridging-MAC [IEEE 802.1aq]  TRILL = Transparent Interconnection of Lots of Links [IETF RFC 6325]  Layer 2 routing for Ethernet switches – Encapsulate Ethernet traffic, use IS-IS routing protocol – Block Spanning Tree Protocol  Transparent to NICs All links active 
  • 27. 27© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Ethernet Cabling Choices Type / Connector Cable 1Gb 10Gb 40/100Gb Copper (10GBase-T) / RJ-45 Cat6 or Cat6a Most existing cabling (lots of Cat 5e) Some products on market, but not for FCoE yet. For 10Gb Ethernet: Cat6 55m Cat6a 100m Not supported (insufficient bandwidth) Optical (multimode) / LC OM2 (orange) OM3 (aqua) OM4 (aqua) Rare for Ethernet Standard for FC Most backbone deployments are optical. OM2 82m OM3 300m OM4 380m Primarily optical (QSFP+ connector) OM3 100m OM4 125m Copper / SFP+DA (direct attach) Twinax N/A Low power 5-10m distance (Rack solution) Different short- distance option (QSFP+) Think of as part of connected equipment
  • 28. 28© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Agenda • Network Convergence • Protocols & Standards • Server Virtualization • Solution Evolution • Conclusion
  • 29. 29© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Live Virtual Machine Migration C: Shared storage: Move VM without moving stored data Storage networking: Enabler of shared storage
  • 30. 30© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. virtual switch Hypervisor driver Storage Drivers and Server Virtualization NIC NICFC HBA FC HBA vNIC vNICvSCSI vSCSI Hypervisor *iSCSI initiator can also be in the VM iSCSI traffic FC trafficLAN traffic
  • 31. 31© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. virtual switch Hypervisor driver Storage Drivers and Server Virtualization NIC NIC vNICvSCSI vSCSI Hypervisor iSCSI traffic vNIC *iSCSI initiator can also be in the VM FC HBA FC HBA C N A C N A FCoE follows FC pathLAN traffic
  • 32. 32© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Software FCoE and Server Virtualization NIC NICFC HBA FC HBA vNIC vNICvSCSI vSCSI Hypervisor FCoE software in VMs would send traffic through the virtual switch to the NICs SW FCoE SW FCoE Hypervisor drivervirtual switch Virtual Switches in ESX/ESXi (including Cisco Nexus 1000v) and Hyper-V are not Lossless (no DCB) Not a problem for iSCSI, NFS or CIFS in a VM
  • 33. 33© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Software FCoE and Server Virtualization NIC NICFC HBA FC HBA vNIC vNICvSCSI vSCSI Hypervisor FCoE software in VMs would send traffic through the virtual switch to the NICs SW FCoE SW FCoE Hypervisor drivervirtual switch FCoE works in Hypervisor or CNA (just not in a VM) C N A SW FCoE
  • 34. 34© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Agenda • Network Convergence • Protocols & Standards • Server Virtualization • Solution Evolution • Conclusion
  • 35. 35© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. FCoE and iSCSI FCoE FC expertise / install base FC management Layer 2 Ethernet Use FCIP for distance Ethernet Leverage Ethernet/IP expertise 10 Gigabit Ethernet Lossless Ethernet iSCSI No FC expertise needed Supports distance connectivity (L3 IP routing) Strong virtualization affinity
  • 36. 36© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. iSCSI Deployment • 10 Gb iSCSI solutions – Traditional Ethernet (recover from dropped packets using TCP) or – Lossless Ethernet (DCB) environment (TCP still used) • iSCSI: natively routable (IP) – Can use VLAN(s) to isolate traffic • iSCSI: smaller scale solutions – Larger SANs: usually FC (e.g., for robustness, management) Ethernet iSCSI SAN
  • 37. 37© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Some iSCSI Best Practices • Use a separate VLAN for iSCSI – Direct visibility and control of iSCSI traffic • Avoid mixing 1Gb/sec and 10Gb/sec Ethernet – Congestion can occur where speed changes • DCB (lossless) Ethernet helps iSCSI, but not a panacea – E.g., Still shouldn’t mix 1Gb/sec and 10Gb/sec Ethernet Top Tips From E-Lab
  • 38. 38© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Convergence: Server Phase  Converged Switch at top of rack or end of row – Tightly controlled solution – Server 10 GE adapters: CNA or NIC  iSCSI and FCoE via Converged Switch FC HBAsNICs Converged Switch Rack Mount Servers 10 GbE CNAs FC Attach Ethernet LAN Storage Fibre Channel SAN Ethernet FC iSCSI
  • 39. 39© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Convergence: Network Phase  Converged Switches move out of rack  FCoE: Multi-hop, may be end-to-end  Maintains existing SAN/network management Overlapping admin domains may compel cultural adjustments Converged Switch 10 GbE CNAs Ethernet LAN Storage Fibre Channel SAN Ethernet FC/FCoE Ethernet Network (IP, FCoE) and CNS Rack Mount Servers
  • 40. 40© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Convergence at 10 Gigabit Ethernet  Two paths to a Converged Network – iSCSI: purely Ethernet – FCoE: mix FC and Ethernet (or all Ethernet) ▪ FC compatibility now and in the future  Choose (one or both) on scalability, management, and skill set 10 GbE CNAs Ethernet LAN FC & FCoE SAN iSCSI/FCoE Storage Ethernet FC/FCoE Fibre Channel & FCoE attach Rack Mount Servers Converged Switch
  • 41. 41© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. EMC and Ethernet  TechBooks (Google: “FCoE Tech Book”) – Fibre Channel over Ethernet (FCoE) Data Center Bridging (DCB) Concepts and Protocols – Fibre Channel over Ethernet (FCoE) Data Center Bridging (DCB) Case Studies ▪ Includes blade server case studies  Services – Design, Implementation, Performance and Security offerings for networks  Products – Ethernet equipment for creating Converged Network Environments
  • 42. 42© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Agenda • Network Convergence • Protocols & Standards • Server Virtualization • Solution Evolution • Conclusion
  • 43. 43© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Conclusion  Converged data centers can be built using 10Gb Ethernet – FCoE: Compatible with continued use of FC under common management – iSCSI solutions work well for all IP/Ethernet networks  10 Gigabit Ethernet solutions are maturing – Standards enable integration into existing data centers – FCoE and iSCSI will follow Ethernet roadmap to 40 and 100 Gigabits/sec  FC will follow FC roadmap to 16GFC and 32GFC speeds  Achieving a converged network: Consider technology, processes/best practices and organizational dynamics
  • 44. 44© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Agenda • Network Convergence • Protocols & Standards • Server Virtualization • Solution Evolution • Conclusion • Bonus: iSCSI and RDMA
  • 45. 45© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. DMA = Direct Memory Access  Improvement on Programmed I/O  Used by FC HBAs and FCoE CNAs Server CPU I/O RAM Programmed I/O via CPU Server CPU I/O RAM Direct Memory Access (DMA) I/O
  • 46. 46© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Remote Direct Memory Access (RDMA)  Connect DMA over network or other interconnect – Requires RDMA I/O hardware Server CPU I/O RAM Server CPU I/O RAM Remote Direct Memory Access (RDMA)
  • 47. 47© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Remote Direct Memory Access (RDMA) RDMA and Storage  Storage Systems often have CPU/RAM/etc.  RDMA can optimize message and data transfer Server CPU I/O RAM CPU I/O RAM Storage System
  • 48. 48© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Remote Direct Memory Access (RDMA) RDMA and iSCSI  Storage Systems often have CPU/RAM/etc.  RDMA can optimize iSCSI message and data transfer Server CPU I/O RAM CPU I/O RAM Storage System Link IP TCP iSCSI SCSI
  • 49. 49© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Remote Direct Memory Access (RDMA) RDMA and iSCSI: iSER  iSER: iSCSI Extensions for RDMA  iSER optimizes (and extends) iSCSI for RDMA Server CPU I/O RAM CPU I/O RAM Storage System RDMA iSER iSCSI SCSI
  • 50. 50© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. iSER (iSCSI Extensions for RDMA)  Based on and extends iSCSI – Standardized in 2007 (IETF RFC 5046) – NEW standard (match implementations): RFC 7145 (2014)  Supports multiple RDMA transports – InfiniBand (iSER: preferred block storage protocol) – RoCE: RDMA over Converged [DCB] Ethernet ▪ RoCEv2 to add IP routing (aka Routable RoCE): Under development by IBTA (InfiniBand Trade Association) – iWARP: RDMA over TCP/IP  Watch this space ...
  • 51. 51© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Related Session and Resources  Breakout – Storage Networking (FC/FCoE/iSCSI/VSN) Technology & Best Practice Update – Monday, 8:30am and Tuesday, 3:00pm  Birds of a Feather – Storage Networking: Network Virtualization & Multi-Tenant Storage – Wednesday, 1:00pm  EMC Support Matrix – http://elabnavigator.emc.com  EMC FCoE Introduction whitepaper – http://www.emc.com/collateral/hardware/white-papers/h5916-intro-to-fcoe-wp.pdf  Storage Networking Blog by Erik Smith (Connectrix) – http://www.brasstacksblog.typepad.com
  • 52. 52© Copyright 2014 EMC Corporation. All rights reserved.© Copyright 2014 EMC Corporation. All rights reserved. Q&A

×