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Technical Seminar Presentation2005

Presented by D. Sudhir, Roll CS 200118133

InfiniBand

Under the guidance of

Mr. Pradeep Kumar Jena

Advisor

Submitted by

D. Sudhir CS 200118133


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A Brief HistoryFuture I/O (FIO) was being developed by IBM, Compaq

Computer, Hewlett-Packard, 3Com, Adaptec, and Cisco.

Next Generation I/O (NGIO) was being developed by Intel, Dell

Computers, Sun, and others.

FIO and NGIO were competing technologies

Neither would win so they combined forces to form Serial I/O

(SIO) which combined the best of both technologies

The name SIO could not escape the powerful clutches of the

Intel Marketing department and hence was renamed

InfiniBand ArchitectureorIBA for short


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What is InfiniBand?

A technology used to interconnect

processing nodes to I/O nodes to form aSystem Area Network

Intended to be a replacement for PCI

Heavily leverages best-of-breedtechnologies


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The ProblemThe need for a cost-effective interconnect

technology for building clusters.

Bus-based architectures (i.e. PCI) are limited to asingle host system and cannot easily extend

beyond the confines of the box.

Bandwidth and Latency between boxes using

existing system area networks are limited and/orexpensive.

This suggests that I/O interconnects need to

radically change every few years in order to

maintain system performance.


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The Solution - InfiniBand

Network-based Architecture

Serial communication technology

Supported by a very large consortium 220

members in the IBTA to date

Targets a volume market in order to takeadvantage of economies of scale


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InfiniBand System Fabric


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Areas of Operation

Application Clustering

Storage Area Networks

Inter-Tier communication

Inter-Processor Communication (IPC)


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I/O Architectures Shared Bus Architecture


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I/O Architectures Switched Fabric Architecture


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InfiniBand TechnicalOverviewLayered Protocol - Physical, Link, Network, Transport,

Upper LayersPacket Based Communication

Three Link Speeds IX-2.5 Gb/s, 4 wire

4X - 10 Gb/s, 16 wire 12X - 30 Gb/s, 48 wire

Subnet Management Protocol

Remote DMA SupportMulticast and Unicast Support

Reliable Transport Methods - Message Queuing

Communication Flow Control - Link Level and End to End


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InfiniBand Layers


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InfiniBand Architecture


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Channel Adapters

Switch

Router

Subnet Manager

InfiniBand Elements


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InfiniBand Support for the

Virtual Interface Architecture

h i l i i


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Presented by D Sudhir Roll CS 200118133

The collective effort of industry leaders hassuccessfully transitioned InfiniBand from

technology demonstrations to the first realproduct deployments.

The IBTA has a vision to improve and simplifythe data center through InfiniBand technology

and the fabric it by creating an interconnect forservers, communications and storage.

Thank You!

Conclusion

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