Brad-Smith_OFC2012_EA_Panel1_why100GinDC.pdf

7/22/2019 Brad-Smith_OFC2012_EA_Panel1_why100GinDC.pdf

1/16

LIGHTCOUNTINGMarket Research on High-Speed InterconnectsDatacom, Telecom, CATV, FTTX, Consumer markets Copyright 2012 LightCounting LLC All material proprietary and confidential.

100G Data Center InterconnectsBrad Smith

VP & Chief Analyst

Data Center Interconnects

[email protected](408) 813-4345

3/12/2012 1


2/16


Waiting for New ServersWaiting for 10GBASE-T

Preparing for the Exa Flood of Data

3/12/2012 2

State of the Data Center Business


3/16


State of the Industry

Data centers are largely very cost sensitive; governs all

decision making

Decision algorithm (Cost of new product) / Server cost

Buy 100G LR4 transceiver OR 8 servers?

Average and large data center needs 4-5G, not 10G yet Getting ready for 10G and 40G QSFP

Most popular optical transceiver = 1G SFP+ & 10G SFP+

Top-of-rack & End-of-row switches are 10G SFP+ & 40G QSFP

ready but .

Entire industry is Waiting for new Romley servers

And 10GBASE-T low-power 28-nm parts

3/12/20123


4/16


Intels Tick-Tock ModelSets the Clock for Data Center Upgrades

Tick= Architecture upgrade ; Tock= Silicon Shrink

3/12/2012 4

Delayed by ~8 months (Leap year effect?)

Data center spending delayed by 8 months


5/16


MPUs Key Data center Driver

8cores, 16 threads (AMD 16 Cores)

Increase DRAM support 128G to 768G+

PCI Express 3.0 faster I/O

Energy efficient

Bottom line: 80 percent more performance than theprevious generation Xeon 5600 MPUs

3/12/2012 5

X540 Lan-on-motherboard (LOM) comes in at only 25% of

the cost of an SFP+ fiber per port deployment.


6/16


Microprocessors

3/12/2012 6

2-4 Cores 10-16 Cores 40-50 Cores

2 MPUs/Server

128GBytes DRAM

PCIe Gen2 (8 lanes @5G/lane

? MPUs/Server

1T+ Bytes DRAM

PCIe Gen3 (8G/lane)

ARM, INTEL, AMD

4 MPUs/Server

768G Bytes DRAM

PCIe Gen3 (8/16 lanes @8G/lane

?Data centerin a server


7/16


I/O for Interconnects

Virtualization software Sends jobs to non busy MPUs

Increases utilization from 20% to 90%

I/O increases: Data Direct I/0 - transfer of data directly to from the

network interface and cache, bypassing main memory

PCI Express Gen 2 5G 8b/10b and 8 lanes PCI Express Gen 3 8G 128/132 and 8-16 lanes

66 GB/s in tested I/O bandwidth

Bottom line: ~300 % faster I/O bandwidth!

3/12/2012

7

20% 90%


8/16


3/12/2012 8

Traditional Data Center Reality


9/16


The Yellow Wall

3/12/2012 9


10/16


Most High-Speed Interconnects

Approaching the 10G Speed Barrier

Most High-Speed Interconnects

Approaching the 10G Speed Barrier

One of the biggest technical transitions in the communications

industry and huge opportunities for photonic interconnects


11/16


Major Data Center Protocols

All Hit 10Gbps barrier Direct Attach: 10G = 7m; 14G=3m; 25G will need active DAC?

10GBASE-T needs microprocessor sized PHY to hit 10G

InfiniBand: 10G moving to 14G FDR & 28G EDR

Ethernet: 10G moving to 25G

Fibre Channel: 8G moving to 14G & 28G

SAS: 6G moving to 12G and 24G

PCI Express: Gen2 5G moving to Gen3 8G & Gen4 16G

All pass ~10Gbps where copper has issues

Reaches are becoming longer

Optical value proposition = high data rate + long reach

Many data center protocols transitioning fro Copper-to-Optical

3/12/2012 11


12/16


3/12/2012 12

.primecaretech.c

Mega Data Center

Link this rack

To this rack

400-600 metes


13/16


Data center Optics

Pluggable transceivers

Active Optical Cables

Embedded Optical Modules

FTTChip

Mez cards

Chip/Optical

3/12/2012 13

Finisar

Reflex/Fulcrum

Avago

More high-speed optics

within and between racks

will push more traffic to 40G/100G

uplinks


14/16


100G

Lots of discussion and excitement

Google & 10x10MSA woke everyone up to thecoming exa-flood of data

What customers want: inexpensive, QSFPsolutions (or CFP/4), dual and parallel fibers

Waiting for 25G VCSELS for short reach

Waiting for LR4 prices to come down

3/12/2012 14


15/16


Why 100G Needed in Data Centers

100G Driving Forces 48 60 Servers/ rack

10Gbps server uplinks

480G -600G problem!

Will demand 100G uplinks

Timing: Romley Q2/2012 : Volume 2H/2012

~ 2H/ 2013 need for 100G transceivers climb rapidly

3/12/2012 15


16/16


3/12/2012 16

Our Website:

www.lightcounting.com

Headquarters Location:

858 West Park Street

Eugene, OR 97401Tel: 408.962.4851

Email: [email protected]

[email protected]

Brad-Smith_OFC2012_EA_Panel1_why100GinDC.pdf

Documents

Transcript of Brad-Smith_OFC2012_EA_Panel1_why100GinDC.pdf