Data Center Power Savings

Transcription

1 Data Center Power Savings

2 Data Center Power Savings Keith Mastrian, Regional Sales Manager, Raritan Data center power usage effectiveness (PUE), developed by The Green Grid, has received a lot of attention. But how do you use PUE to minimize wasted power? How do you identify stranded power and thereby possibly delay the construction of a very expensive new data center? How do you justify for management the investment to gather detailed power information? This session will reveal the answers to these questions through a detailed discussion about deploying smart PDUs with outlet-level monitoring and environmental sensors, developing a plan to gather information, and making the most of that information once it has been gathered

3 Metrics: PUE, DCiE, and Carbon Footprint PUE = Total Facility Power IT Equipment Power DCiE = IT Equipment Power Total Facility Power x 100% Carbon Emissions (kg) = Energy (kwh) * Carbon Factor (kg/kwh) Assumptions: 10Mw total, 5 Mw IT, $0.10/kwh, 7x24 operation PUE = 10 Mw/5 Mw = 2.0, DCiE = 50% 8760 hours x $0.10/kwh x 10 Mw = $8.76M annual cost of power Example Carbon Factors: PG&E =.24 kg/kwh Con Ed =.35 kg/kwh CO2 = 8760 hours x 10 Mw x.35 kg/kwh CO2 = 30,660,000 kg (about 6759* cars) *based on ~12k miles and ~4536kg

4 The roadmap to your PUE IT equipment power measurement from Total facility power measurement from Minimum measurement interval Level 1 Basic Level 2 Intermediate Level 3 Advanced UPS PDU Server Data center input power Data center input less shared HVAC Data center input less shared HVAC plus building, lighting, security Monthly/weekly Daily Continuous Source: greengrid.org

5 Green Grid PUE level 1 Green Grid PUE level 2 Green Grid PUE level 3 Source: greengrid.org

6 So why measure? Driving forces behind measuring Source: greengrid.org, energy measurements survey results analysis

7 Actions prompted by efficiency metrics Source: greengrid.org, energy measurements survey results analysis

8 Lower PUE is better, right? On Average, typical DC is ~ 2.0 High range > 2.75 Low range < 1.5 What happens to PUE if we raise the temperature? Cooling load goes down, PUE goes down What happens to PUE if we shut 10% of servers that are deemed ghost servers? IT load goes down, PUE goes up What happens to PUE if we also throttle the cooling to meet the new lower IT loads? IT load goes down, Cooling load goes down, PUE could remain the same PUE is useful but may not be the end all. Ultimately you want to minimize waste and save $$$. Stay tuned, other productivity metrics are coming

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10 What is an ipdu? Intelligent (rack) Power Distribution Unit Metering down to individual outlets, plus circuit breakers & PDU level Rich power data collection Voltage (V), Current (A), Power Factor, Apparent Power (kva), Active Power (Watts), Energy Consumption (kwh) Remote control of power on/off/recycle Some with integration with KVM Local display & remote GUI Network based 10/100/1000 or wireless Secure Encryption of sessions and session data: HTTPS, SSH, AES, SSL Rich user /user group AAA: LDAP/AD Standards based management SNMP V2, V2, V3 with encryption Built-in support for environmental sensors

11 Tale of Two Cities IT: That s awesome. Facilities: Hmm more components that can fail.

12 The tale of the two cities IT Lingo Facilities Lingo Networking: 10/100/1000, a/b/g/n Plug (NEMA, IEC, IP67/Splashproof) Protocols: TCP/IP, HTTPS Cordset (gauge, jacket, weight, SOOW, plenum-rated) Security: AES, SSL Chassis (Metal, Ventilation, Button Mounting) Interfaces and Interoperability: ODBC, WS-API, SSH, RS-232, RJ- 11, RJ-45, LDAP/AD Manageability: SNMP, thresholds, alerts Receptacles (Soldered? Terminals?) Relays Circuit Breakers (Magneto-Hydraulic / Magneto-Thermal)

13 ASHRAE new recommended operating environment New recommended is 65F to 80F Old recommended is 68F to 77F New allowable is ~60F to 90F NEBS 65F 80F Source: ASHRAE, Thermal Guidelines for Data Processing Environments

14 ASHRAE - Where to measure temperature Source: ASHRAE, Thermal Guidelines for Data Processing Environments

15 What do I do with all this power data? Find stranded power capacity by knowing the actual power load at all levels including racks and IT devices Increase uptime by getting alerts before breakers trip Understand your carbon footprint by charting the carbon emitted to generate the energy consumed Report carbon footprint for business units to drive sustainability initiatives implementing billback programs to drive efficiency behavior Increase energy efficiency by scheduled power control, and measuring changes in consumption due to savings programs Measure PUE, understand how efficient you are, implement efficiency projects, increase utilization and reduce waste, compare with your peers, and improved efficiency

16 Don t forget element & energy management software Something has to collect all this good data Consider accuracy of data What about polling frequency Something has to calculate, trend, and report against the data What about my existing stuff? Don t forget element management Actual load information can also feed change and capacity mgmt tools How much does all this cost?

17 What do I do with the environmental data? Plot CFD like views to quickly see overcooling and hot spots Plot trends of rack inlet temperatures Check if you re operating within ASHRAE guidelines Get a quick look at the environment when you get alerts Vs. nameplate, see the real effect effect of changes to the environment Add servers, add blades, virtualize servers, decomission servers Add blanking plates, add cold/hot aisle containment, shut off CRAC, VFDs on CRAC, add economizers

18 Is there a way to justify the incremental costs for ipdu s? You can t manage what you don t measure Factor in all costs, it might be a wash Totally integrated intelligent rack pdu solution vs. cobbling together the pieces, plus related costs of additional drops, e.g. cabling, Ethernet ports, patch panel ports, etc. Funding might be available in your regions PG&E, American Recovery & Reinvestment Act, California Energy Commission Start small: Build it in phases and learn/see value by showing data to management Energy savings ROI models available from vendors

19 The Ecosystem - It all has to work together to realize economies IT Admins DC Operations DC Manager/Facilities Facilities 3 rd Party Systems IT Equipment Life cycle Management Data Center Asset, Visualization, Change, Capacity, Operations Management Data Center Energy Management Building Management Trouble Ticketing, CMDB, Network Mgmt, Reporting, Workflow, BMS, Billing IT Equipment HTTPS, IPMI, RDP, SSH, SMASH CLP, SNMP, WMI, Modbus, BACNet Power Distribution, Cooling, and Environment/Building Controls SNMP, Web Services, ODBC

20 Resources Green Grid: EPA Server and Data Center Energy Efficiency Initiatives: iciency US Green Building & LEED: ASHRAE: Spec.org: American Clean Energy & Security Act (Waxman Markey): Climate Savers: Sustainable Buildings Industry Council: Raritan:

21 Thank you! Keith Mastrian Regional Sales Manager ext. 12

22 Power densities what can we do about it? Higher power to the rack Higher current, 30A to 60A 3 phase* 24x208x1.73 = 8.6kW 40x208x1.73 = 14.4kW 48*208*1.73 = 17.3kW Higher voltage, trend towards 400V 3 phase to the rack 24x400x1.73 = 16.6kW 48x400x1.73 = 33.2kW Move cooling closer to the IT load Design zones in the data center 5kW racks + 17kW racks *assumes pf = 1

23 Power densities additional benefits from 400V Less copper Less weight Less space Less cost Source: General Cable Carolprene