Delivering Sustainable IT Services

Sanjay VarmaGlobal Head – Professional ServicesIT Services

IT is power-hungry

• Globally, IT generates 2% of CO2 emissions

‒ Similar to the Airline industry but growing

• A single Windows server generates > 3 tonnes CO2 p.a.

• A 500 server estate can generate 1,500 tonnes CO2 p.a.

• 1,000 desktops can generate 800 tonnes CO2 p.a.

Many IT organisations are struggling with power issues

• Smaller, more powerful systems demand higher power densities

• Systems innovation cycle is MUCH shorter than facility refresh cycle

‒ Data Centres struggle to cope

‒ Power grids will also be stressed as IT expands

We will show you how BT

• Understands the problem

• Has developed a coherent set of solutions to resolve these

• Has proven these solutions with clients and in our internal estate

Context and Agenda

These issues must be resolved if IT is to fulfil its potential as a

transformational force for sustainable business

How can we reduce Energy Consumption and CO2 production ?

• Energy Consumption and CO2 production are directly linked:

▬ Every 1Kw Hour consumed produces 0.537 Kg CO2 *

• We use a 2-pronged approach for Energy / CO2 reduction in data centres:

Reduce physical hardware through virtualisation & consolidation

Improve the efficiency of the data centresPUE = Total Energy Consumed /

Useful Energy Delivered

* Based on Defra rolling average GHG conversion rates* Based on Defra rolling average GHG conversion rates

IT Services Portfolio Strategy

Infrastructure as a Service Software as a Service Business Process Enablement

• IT Audit

• CMP

• Virtual Data Centre

• SOA services

• Hosted SAP

• Oracle On Demand

• Enterprise Architecture services

Business ProcessEnablement Services

Repeatable IT Consulting Methodologies

Global Operational & Service frameworks

Regional Data Centre & Virtualised IT Infrastructure

Illustration: Power consumption for a typical 200-server Windows estate

Impact of Virtualisation

• Non-Virtualised: 130KW (~ 610 tonnes CO2)

• Virtualised: 24-50KW (~112 - 230 tonnes)

• Virtualisation can reduce power consumption by between66% and 82% (Assume Average PUE of 2.4)

Impact of Data Centre efficiency

• The difference in energy consumption between an inefficientData Centre and an efficient one can be as much as 50%

• (Assuming PUE range from 3.2 to 1.6)

Combined Impact, Combining these factors:

• Worst Case:

‒ Non Virtualised; PUE = 3.2

‒ CO2 = 813 tonnes

• Best Case:

‒ Virtualised; PUE = 1.6

‒ CO2 = 75 tonnes

• Potential Energy / CO2 saving ~ 91%

BT Capability – The Path to Efficiency

Level 1:First cut emissions

Level 2:Baseline emissions

Level 3:Discover emissions

CMPDelivering efficiency

DC ServicesVirtualisinginfrastructure

Benefiting

Base lining

BT IT AuditAppliance

Windows workstationsWindows

Servers

MAC Machines

UNIX Machines

HubsPrinters

IP Phones

Switches

Software applications

Primary data centre BT or client based

Router

Router

Router

Router

LINUXLaptops

BT IT Audit – automated IT discovery

IT Audit Services

• A professional servicesconsulting capability

• We help our clients to gain abetter understanding of the assets comprising their ICT estate.

• What they are:

- How are they connected - How are they configured - How well they are working

• Our reports provide clients with the information they need to reduce cost and optimise performance

IT Audit Outputs

BT IT Audit - outcomes

• Executive summary outlining BT findings and recommendations

• A comprehensive and detailed report of all devices found during the audit*

‒ Makes‒ Models‒ Serial Numbers‒ Configurations‒ Operating Systems‒ Software Packages‒ Connectivity

* depending on the type of auditperformed

IT Audit Outcomes

Continuous Migration Process

CMP allows us to move beyond “islands ofvirtualisation” to enterprise-level deployments

• A professional services consulting capability

• Detailed analysis of application estate and associated infrastructure

• Workload analysis:‒ CPU‒ Memory‒ Disk

• Business Rules analysis:‒ Define infrastructure strategy per

application based on business requirements

• Platform analysis‒ Can applications be moved to

more efficient platforms ? E.g. from Unix to Linux / Windows

• Migration Planning:‒ Migrate applications into

virtualized environment.‒ Eliminate risk through accurate

and detailed planning

CMP

Virtual Data Centre Services: Infrastructure as a Service

Virtual Desktop Infrastructure (VDI)

• VDI enables Desktop images to be run on virtual servers in the data centre

• Ideal application for VDC

• Desktops are then replaced with thin client-style devices

• Huge power savings – of the order of 60-70%

Customer DashboardCustomer controls environment

automatically (applications & security, provisioning)

Services include virtual servers, virtual infrastructure, flexible networks

and storage shared across multiple locations with security separation

maintained

The Latest concept in data centre services Reliance on the physical hardware is removed and replaced

with emphasis on service

The Latest concept in data centre services Reliance on the physical hardware is removed and replaced

with emphasis on service

BT Internal Case Study – UK Data Centres

* Based on Long Term Marginal Rate 0.43 Kg / KWh* Based on Long Term Marginal Rate 0.43 Kg / KWh

Problem for BT

Solution OutcomeOutcome

• Inefficiency of Data Centres driving high cost and negative environmental impact

• Application Transformation / Rationalisation• Server consolidation and virtualisation• Retirement of legacy systems• Removal of 3,350 servers

• Lower cost;• 52% saving; 14 month payback

• Lower Energy use and CO2 emissions• 89% power reduction achieved• Reduction of 2.5MW power usage• Saving of 21.9 GWh p.a.• or 9,400 tonnes CO2 equiv p.a. *

PUE improvements in BT Data Centres – 2008/9

Principles of improving PUE

• Managing and balancing air flow

• Hot and cold aisle containment

• Moving to fresh-air cooling

• Increasing operating temperature

Practical actions taken:

• Arrangement of cold and hot aisles

‒ Separate with curtains

• Move air grids to most effective position

• Reduce cooled air leakage

‒ Use blanking panels & brush inserts for air grids

• Increased set-point temperature

This is work-in-progress, and PUE does fluctuate with DC workload. To date we have reduced energy consumption by an additional 10%This is work-in-progress, and PUE does fluctuate with DC workload. To date we have reduced energy consumption by an additional 10%

The result…The result…

BT Internal Case Study: iNET Italy

Problem for BT

Solution OutcomeOutcome

• Growing market requirement for data centre services / finite data centre capacity

• Minimise environmental impact of new data centre

• I.NET took a critical look at everything from building location to design and used natural water resources for cooling

• Demonstration of environmental thought leadership

• Reducing CO2 emissions by 4,200tonnes pa

• Saving €800,000 pa

• 28% reduction in energy use overall

BT External Case Study: Local Government

Problem for BT

Solution OutcomeOutcome

• Aging Windows infrastructure of 400 servers

• Infrastructure silos which preventedeconomies of scale

• Poor responsiveness to change

• High costs

• BT built a new virtualised compute and storage environment

• Created new consolidatedinfrastructure domain

• Migrated 140 OS instances &applications initially

• Other applications to be migrated asthey need refresh

• 20:1 consolidation achieved

• TCO saving of 33% on a 5 year basis

• NPV = 636K ; IRR = 81%

• Payback period: 15 months

• CO2 savings of 83%

Saving of 326 CO2 tonnes per year

Summary

• BT’s IT Services capability is integrated with our sustainability programmes

‒ We are committed to helping our customers achieve environmental and cost improvements

• Learning from our internal programmes has driven our market capability

‒ Effective packaged consulting capability

‒ Infrastructure as a Service through Virtual Data Centre

• We can provide an end to end client journey from Assessment to Implementation

‒ Improve efficiency of IT infrastructures through virtualisation

‒ Optimise the outcomes using BT PS packages

‒ Drive down energy use and CO2 emissions

• Energy reductions up to 89% have been achieved

‒ Through the reduction of BT’s estate

Q&A

Delivering Sustainable IT Services