bt gs data centres - sanjay varma
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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