Linkedin Open19 Deep Dive

Yuval Bachar

Principal Engineer, Global Infrastructure & Strategy at

Data Center Philosophy

• Every element in the data center is a server

• Appliance free data centers

• Multi-Supplier for every component in the data centers

• Solve in software what you can

Scale OutFlash for storage Disaggregation Cost Optimized

The Open19 Project

Open19 Project Goals

• Create an open standard that can fit any 19” Rack environment

for server, storage, and networking

• Create a solution that will have applicability for large, medium,

and small scale data centers

RACK DEPLOYMENT COST OPTIMIZATION

Reduce commons by 50%

CONSOLIDATE REQUIREMENTS

Eco system with high adoption level

ENABLE FASTER RACK INTEGRATION

3-5x faster integration time

Open19 Project Non-Goals

• Create a proprietary form factor

Low adoption level

• Create restrictive development environment

Minimized defined specification

• Build a heavy bureaucratic organization

Minimal organization that will enable collaboration

Engineering focused first

Business partners next

Brick

Double Wide

Brick

Power Shelf

Brick Cage

Network Switch

Double High

Brick

Platform Building Blocks

Blind mate

Power

Connectors

Blind mate

100G data cables

and

Connector

Open19 in real life…

HPe

Flex

InspurLinkedin

SuperMIcro

Brick Cage

• Passive mechanical

cage

• 12RU and 8RU options

• 2RU modularity– 4x Bricks

– 2x Double High Half Width

– 2x Double wide

– 1x Double High

• Snap-on rear opening

Rack View:

Full Cable without Rack:

• Plastic ‘spine’ snaps

around main cable

breakout

Close-Up Cable

• 4X2 Impel breakouts remain

flexible

• Length of 4X2 Impel optimized so

that cable will sit closer to the

rack

Bricks Form Factors

• Four brick form factors

– Brick (½ wide 1RU)

– Double High Half Width – (2RU)

– Double Wide Brick (1RU)

– Double High Brick (2RU)

• Linear power and data growth

• Self Sustained – EMI & Safety

& cooling

• 100G Blind Mate network

Servers in design

• Dell, HPe, SuperMicro, Flex, Celestica and Inspur are actively

working on Open19 server

• White boxes in development by Linkedin:

• Quad socket Broadwell-DE in a half width 1RU (brick)

• Dual socket High-end Skylake with up to 1.5T memory in 1RU

• Storage Servers – Single socket up to 32 drives per 1RU

• One clarification about the high density solution – To get to the

full capacity (96 @ 19.2Kw) the core count will only be 3000

Open19 Switch

• 3.2T Switch

• Dual switch: Data Path &

Management (OOB)

– 50G per server data path

– 1G per server management (optional)

– Console port per server (optional)

• 12v input (no power supplies)

• Up to 8x100G uplinks or local

switching ports

• Broadwell-DE CPU with BMC

• Linkedin white box design

Open19 Power shelf

• Two configurations:• 1RU 9.6KW per leaf zone

• 2RU 19.2KW per leaf zone

• Shared power modules

• Management via GE port

• Full AC and DC range

• Multi-Source for the shelf and modules

• Per server protection and monitoring OPTIONAL BBU

Optional rack level battery

back unit

Fast Installation Process

• Any 19” Rack

• Install the cages: 4 screws each, front only

• Install the power shelf: 2 screws, front only

• Install the two switches: 2 screws each, front only

• Snap-on cables to the back of the cages: Tool-less

• Plug the power shelf: Snap-on cable, tool-less

• Connect the switch: Snap-on + optics, tool-less

• Blind-mate install the bricks: Tool-less

• Connect the power feed to the power shelf: Tool-less

• GO: The rack is integrated, up and running!

Platform Benefits

ANY19” RACK

Any location

DISAGGREGATION

Self sustained servers

EFFICIENT POWER

Single stage 96% power conversation

No server power supplies

LEVERAGE EXISTING SERVERS

Bricks form factor fit most existing motherboards

MULTI-SERVER TIERS

Four form factors

Server IP protection and innovation

FULLY REDUNDANT INFRA

A/B 2N power redundancy

No central controllers

COST EFFECTIVE

Rack level cost reduction

Solution cost savings

SHORT INTEGRATION TIME

5-6x faster rack level integration

Open19 Deployment Models

• Traditional: Data center operators

• Bare metal cloud service: Lease a slot - Emerging

• High efficiency offsite integration

• Edge platform cloud optimization

Future Developments for Open19

• Open orchestration & management software

• Different cage form factors

• New “server” models

• Automated data center deployment model

• Optical snap-on data cabling

• Liquide cooling integration

• Automated data center

• Any other “crazy idea”

Linkedin Deployment Model

Staged Datacenter Deployment – Stage1

Pre-Server Stage

• Build out to site/suite capacity of empty cages

• Power shelf and cables integration

• Switching integration with optical uplinks

• Move to warm deployment state

• Cost effective

• Accelerating date center deployments

Staged Datacenter Deployment – Stage2

Server Integration

• Insertion of servers on demand

• Fully automated provisioning and deployment

• Deploy 1000s of severs in days not months

• Create an elastic data center model with fix low cost infra

Staged Datacenter Deployment – Stage3

Sustaining & Operations

• Never touch infra

• Server only blind mate insertion removal

• Full monitoring and automation

Open19 Foundation

Open19 Foundation

• Established in May 2017 and open for business

• Launch event 5/23/2017 – Check out our YouTube channel

• A community based organization for open source hardware and

software, Open19 project is one of many

• 5 Founding members, 27 members, 1200 individual members

growing daily

• In forming stages and establishing very fast very special

community and IP sharing rules

• Join us @ www.open19.org

Summary

• Open19 is about defining a common form factor

• Open19 is about community collaboration

• The Open19 community is established now: over 75 companies

involved

• Data center Operators and integrators

• Systems Suppliers

• Components suppliers

• Open19 technology will be ready for production Q1 2018

• Go to open19.org and join us individuals and companies

Yuval Bachar

www.open19.org