Capacity and Power Management: The Forgotten Factors in Disaster Recovery Planning Presented by: Clemens Pfeiffer CTO Power Assure, Inc.

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2 Capacity and Power Management: The Forgotten Factors in Disaster Recovery Planning Presented by: Clemens Pfeiffer CTO Power Assure, Inc.

3 The Purpose of a Data Center Provide IT equipment a healthy environment to guarantee application service levels

4 Multiple Data Centers Redundancy and Business Continuity

5 Data Center Requirements Reliability Redundancy Enough power & cooling Supporting growth Service level guarantees Tiers 1: Non redundant 2: N+1, redundant components 3: 2N, active/passive 4: 2(N+1), fault tolerant

6 Energy Efficiency vs. Reliability No one ever got fired for using too much electricity, but people get fired all the time for data center outages. A Data Center Manager

7 Application Redundancy Hot/Cold Failover configuration Either location run application Either location provides service Only one active at any time Failover delay Power Both sites always on 1x Peak capacity 2x Power consumption

8 Application Redundancy Hot/Hot Load balanced Both locations run application Both locations provide services Fully synchronized Instant protection Power Both sites always on Low average utilization per site 2x peak emergency capacity 2x power consumption

9 Data Center Cost Facility Cooling Power IT Network Hardware Software CAPEX: $1,000/sqft OPEX: 250W/sqft $219/year/sqft $100,000/rack 10kW per rack Power: $8,760/year Application Services

10 Savings Potential CAPEX What redundancy is needed? UPS/Generator on network only / everything? OPEX What capacity is required to support demand?

11 Yahoo Multiple Tiers in a Single Data Center

12 Integrated View Overall Utilization Facility and IT

13 PAR 4 Reference Data Single Server VMware Cluster 100%: All VMs at 100% Idle: All VMs idle 100% 100% idle idle

Virtualization Virtualization Total Resources: 14 Fixed Reservation With QoS, Individually Provisioned (use max utilization as limit for low QoS apps) Total Resources: 11-13, Savings: 7%-20% Shared

14 Virtualization Virtualization Total Resources: 14 Fixed Reservation With QoS, Individually Provisioned (use max utilization as limit for low QoS apps) Total Resources: 11-13, Savings: 7%-20% Shared Reservation With QoS, Group Provisioned (use spare capacity for low QoS apps, shared buffer) Total Resources: 7-8, Savings: 43%-50% 14 Tier 2 Low QoS Tier 4 High QoS 0 Power Assure and PARC patents pending Run LOW QoS Apps for Free!

15 Single Location Savings On-Demand Capacity OFF when not needed Power Savings: 42%

16 Hot/Cold Savings & Requirements reserve capacity with dynamic on/off buffer used Power Savings: 72% Peak Capacity: 1.6x

17 Hot/Hot Savings & Requirements reserve capacity with dynamic on/off buffer used Power Savings: 72% Peak Capacity: 3.5x

Supply, Pricing, Alerts, PAR 4 Integrated Backend

Standard Operating Procedures using Runbook Process

and Alerts What/If Analysis ANALYTICS VISUALIZATION Fully

Collection and Action Execution (per Data Center)

18 Example Solution Global Energy Intelligence (opt-in subscription) Energy Trading, Contract Management, Supply, Pricing, Alerts, PAR 4 Integrated Backend Services (hosted or on-premise SaaS) Automation of Standard Operating Procedures using Runbook Process Models GLOBALIZATION AUTOMATION Preventive Maintenance and Alerts What/If Analysis ANALYTICS VISUALIZATION Fully redundant storage 36 month data retention Agentless Data Collection and Action Execution (per Data Center) HISTORIAN Cooling, Power, Temperature, Server Utilization, Application Service Levels COLLECTION

19 Real-Case Example Before 10MW available power PUE 2.3 Central chiller plant Raised floor Open space Hot/Cold secondary site configuration Single speed CRAC units manual on/off Return air to CRAC units set to 72F

20 Discrete Improvements Changes Add VFD controls to CRAC/CRAH units Feed IT inlet temperature to controller Set inlet temperature to 75F Hot/Cold aisle isolation blanket panels Cold aisle containment Hardware Refresh From 2008 HP server (2U, 368W, 133k txn/watt) To 2010 Dell server (1U, 157W, 700k txn/watt) Virtualization Using Power Assure PARC group provisioning

21 Overall Improvement Results After PUE 1.3 Contained cold aisle at 75F Variable speed CRAC unit controlled by IT inlet temp 80% Floor space reduction, 80% power reduction 15x Capacity increase when fully propagated Hot/Hot virtualized and load balanced environment Dynamic application safety buffer Virtually no application service limits + 42% ongoing power savings by moving from always-on to always-available

22 Thank You! Presented by: Clemens Pfeiffer CTO Power Assure, Inc.

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