ETSI TS 105 174-2-2 V1.1.1 (2009-10)

Access, Terminals, Transmission and Multiplexing (ATTM); Broadband Deployment - Energy Efficiency and Key Performance Indicators; Part 2: Network sites; Sub-part 2: Data centres

DTS/ATTM-02005-1-3

General Information

• Status: Published
• Publication Date: 07-Oct-2009
• Technical Committee: ATTM AT2 - Infrastructure, Physical Networks & Communication Systems
• Current Stage: 12 - Completion
• Due Date: 09-Oct-2009
• Completion Date: 08-Oct-2009
• Mandate: M/462

Standards Content (Sample)

ETSI TS 105 174-2-2 V1.1.1 (2009-10)
Technical Specification


Access, Terminals, Transmission and Multiplexing (ATTM);
Broadband Deployment - Energy Efficiency
and Key Performance Indicators;
Part 2: Network sites;
Sub-part 2: Data centres

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2 ETSI TS 105 174-2-2 V1.1.1 (2009-10)



Reference
DTS/ATTM-02005-1-3
Keywords
access, cable, optical, site engineering
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© European Telecommunications Standards Institute 2009.
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3 ETSI TS 105 174-2-2 V1.1.1 (2009-10)
Contents
Intellectual Property Rights . 6
Foreword . 6
Introduction . 6
1 Scope . 7
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 9
3 Definitions and abbreviations . 9
3.1 Definitions . 9
3.2 Abbreviations . 11
4 Overview of data centres . 12
4.1 Types of data centres . 12
4.2 Tiering of data centres . 13
4.2.1 Tiers and criticality . 13
4.2.2 ANSI/TIA-942 . 13
4.2.3 Uptime Institute . 13
4.2.4 Criticality levels . 14
4.2.5 Tiers and costs . 14
4.3 Issues faced by data centres . 15
4.3.1 General . 15
4.3.2 Current issues. 16
4.3.2.1 Overview . 16
4.3.2.2 Principle issues . 16
4.3.2.3 Operator data centres. 17
4.3.3 Evolution and future trends . 17
4.3.3.1 Power and cooling demands of IT equipment . 17
4.3.3.2 New projects . 17
4.3.3.3 Data centre consolidation programmes . 18
4.3.3.4 Environmental impacts . 18
4.4 The new context . 18
4.4.1 Energy consumption and energy efficiency . 18
4.4.2 Factors impacting energy efficiency . 19
4.4.3 On-going initiatives . 19
5 Energy efficiency standards and metrics . 20
5.1 Review of activities outside ETSI . 20
5.1.1 EU Code of Conduct on Data Centres Energy Efficiency . 20
5.2 Energy consumption in data centres . 20
5.3 Energy Efficiency Key Performance Indicators (KPIs) . 21
5.3.1 Power Usage Effectiveness (PUE) or Data Centre Infrastructure Efficiency (DCIE) . 21
5.3.1.1 General . 21
5.3.1.2 PUE for new data centres . 22
5.3.1.3 PUE in existing data centres. 23
5.3.2 Other KPIs . 24
5.3.2.1 Energy efficiency KPI . 24
5.3.2.2 Consolidation KPI . 24
5.3.2.3 Data collection . 25
6 Increasing the energy efficiency of IT infrastructures. 25
6.1 General . 25
6.2 3 Tier Software Architecture Model . 25
6.3 Energy efficiency solutions . 26
6.3.1 Obsolete equipment . 26
6.3.2 Replacement equipment . 26
ETSI

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4 ETSI TS 105 174-2-2 V1.1.1 (2009-10)
6.3.3 Power and capacity management . 26
6.3.3.1 General . 26
6.3.3.2 Power management . 26
6.3.3.2.1 Activation of basic power management features . 26
6.3.3.2.2 Activation of "sleep" mode . 27
6.3.3.2.3 Reduction of energy consumption of environmental control equipment . 28
6.3.3.3 Capacity management . 28
6.3.3.3.1 General . 28
6.3.3.3.2 Environmental capacity management . 29
6.3.3.3.3 Storage . 29
6.3.3.3.4 Servers . 29
6.3.3.3.5 On-demand scalability for on-line business. 29
6.3.4 Consolidation initiatives . 29
6.3.4.1 Consolidation of servers . 29
6.3.4.2 Physical consolidation . 30
6.3.4.2.1 The process . 30
6.3.4.2.2 The effects . 30
6.3.4.3 Virtualization . 30
6.3.4.3.1 The process . 30
6.3.4.3.2 The effects . 30
6.3.4.3.3 Reduction of energy consumption of IT infrastructure . 30
6.3.4.3.4 Reduction of energy consumption of environmental control equipment . 31
6.3.4.4 Logical consolidation . 31
6.3.4.4.1 The process . 31
6.3.4.4.2 The effects . 32
6.3.4.5 Application consolidation . 32
6.3.4.5.1 General . 32
6.3.4.5.2 The process . 32
6.3.4.5.3 The effects . 33
7 Reducing the energy demand of environmental control systems . 33
7.1 General . 33
7.2 Energy reduction solutions . 34
7.2.1 Measurement of thermal behaviour . 34
7.2.2 Improvement of cooling efficiency . 34
7.2.2.1 Zonal approaches to thermal isolation. 34
7.2.2.1.1 General . 34
7.2.2.1.2 Hot aisle and cold aisle segregation. 34
7.2.2.1.3 Cold aisle covers. 34
7.2.2.1.4 Segregation using curtains . 35
7.2.2.1.5 High density areas . 35
7.2.2.2 Reduction of thermal waste in cabinets/racks . 36
7.2.3 Modification of temperature and humidity . 37
7.2.3.1 General . 37
7.2.3.2 Results of experimentation . 37
7.2.3.3 Time before "system-shutdown" . 38
7.2.3.4 Restrictions on implementation . 39
7.2.4 Alternative cooling mechanisms . 39
7.2.4.1 Free cooling. 39
7.2.4.2 Direct liquid cooling . 41
7.2.4.3 Emerging technology (auto cooled chassis or chip-level cooling) . 41
7.2.4.3.1 Cooling-on-the-chip . 41
7.2.4.3.2 Auto-cooled chassis . 41
7.2.5 Enhancements of cooling systems . 41
8 Infrastructure requirements to optimize energy efficiency. 42
9 Improvement of energy efficiency of power distribution systems . 42
9.1 General . 42
9.2 Uninterruptible Power Supplies (UPS). 43
9.2.1 Efficiency . 43
9.2.2 Modular UPS . 44
9.3 Energy efficiency improvement solutions . 45
ETSI

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5 ETSI TS 105 174-2-2 V1.1.1 (2009-10)
9.3.1 Measurement of energy efficiency of existing equipment . 45
9.3.2 Energy capacity management . 45
9.3.3 Review of policy . 45
9.3.3.1 General . 45
9.3.3.2 HVDC versus AC . 45
9.3.4 High efficiency distribution equipment . 45
9.3.5 Backup power . 46
10 Energy efficiency within existing data centres . 46
11 Energy efficiency within new data centres . 46
11.1 General . 46
11.2 Multi-disciplinary approach . 47
11.2.1 Location . 47
11.2.2 Energy sources . 47
11.2.2.1 Main energy . 47
11.2.2.2 Backup energy . 48
11.2.3 Building conception . 48
11.2.4 Internal design . 48
11.2.5 Energy and cooling . 49
11.2.6 IT infrastructure . 49
11.2.7 Software . 49
11.2.8 Processes . 50
12 Conformance . . 50
12.1 Existing data centres . 50
12.2 New data centres . 50
13 Recommendations . 51
13.1 Existing data centres . 51
13.1.1 General . 51
13.1.2 Reduction of PUE . 51
13.1.3 Reduction of energy consumption . 51
13.1.4 Optimum usage of existing resources . 51
13.1.5 High density areas . 51
13.2 New data centres . 52
13.2.1 General . 52
13.2.2 Location study . 52
13.2.3 Data centre construction . 52
13.2.3.1 External . 52
13.2.3.2 Internal . 52
13.2.4 Cooling . 53
13.2.4.1 systems . 53
13.2.4.2 Temperature control . 53
13.2.5 IT Infrastructure . 53
13.2.5.1 Architecture and policy . 53
13.2.5.2 Automation and capacity management . 54
13.2.6 Organization - processes . 54
14 Future opportunities . 55
14.1 General . 55
14.2 Energy . 55
14.3 Cooling . 55
14.4 Energy efficient IT hardware . 55
14.5 Software, tools and re-engineering . 56
14.6 Consolidation initiatives . 56
Annex A (informative): Indications of the effect of energy efficiency actions . 57
History . 58

ETSI

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6 ETSI TS 105 174-2-2 V1.1.1 (2009-10)
Intellectual Property Rights
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in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
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Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Access, Terminals, Transmission
and Multiplexing (ATTM).
The present document is part 2-2 of a mult
...