1、 I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T L.1301 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (05/2015) SERIES L: CONSTRUCTION, INSTALLATION AND PROTECTION OF CABLES AND OTHER ELEMENTS OF OUTSIDE PLANT Minimum data set and communication interface requirements fo
2、r data centre energy management Recommendation ITU-T L.1301 Rec. ITU-T L.1301 (05/2015) i Recommendation ITU-T L.1301 Minimum data set and communication interface requirements for data centre energy management Summary Recommendation ITU-T L.1301 establishes a minimum data set necessary to manage dat
3、a centres and telecommunication rooms in an environmentally responsible manner. The Recommendation specifies the communication interface and defines the parameters to be communicated depending on the equipment used in data centres, such as power systems (alternating current (AC)/direct current (DC)
4、and uninterruptible power supply (UPS) and energy distribution), cooling systems and information and communication technology (ICT) equipment. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T L.1301 2015-05-07 5 11.1002/1000/12428 Keywords Data centre, energy management. _ *
5、To access the Recommendation, type the URL http:/handle.itu.int/ in the address field of your web browser, followed by the Recommendations unique ID. For example, http:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T L.1301 (05/2015) FOREWORD The International Telecommunication Union (ITU) is th
6、e United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Rec
7、ommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. Th
8、e approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Admin
9、istration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., interoperability or applicability) and co
10、mpliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendatio
11、n is required of any party. INTELLECTUAL PROPERTY RIGHTSITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed
12、Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommenda
13、tion. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2015 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, with
14、out the prior written permission of ITU. Rec. ITU-T L.1301 (05/2015) iii Table of Contents Page 1 Scope . 1 2 References . 1 3 Definitions 1 3.1 Terms defined elsewhere 1 3.2 Terms defined in this Recommendation . 1 4 Abbreviations and acronyms 2 5 Conventions 2 6 Architecture of data centre energy
15、management 2 7 Managed entities . 3 8 General requirements for data centre energy management 3 8.1 Requirements for communication interfaces 3 8.2 Requirements for measuring data . 4 9 Minimum data set for energy management in data centres 4 9.1 Minimum set of static data . 4 9.2 Minimum set of dyna
16、mic data 5 10 Data definition and requirements 6 10.1 Requirements for data items of ICT equipment . 6 10.2 Requirements for data items of facility equipment 7 Appendix I Examples of an optional data set for energy management in a cloud data centre . 8 I.1 Managed entities . 8 I.2 Minimum data set .
17、 8 Appendix II Examples of use cases for a minimum data set 10 Appendix III Suggested accuracy value of measurement data . 12 III.1 ICT equipment 12 III.2 Cooling equipment . 12 III.3 Power equipment 12 Appendix IV Related standardization activities in other standards development organizations . 13
18、IV.1 Activities in ETSI . 13 IV.2 Activities in ECMA 13 IV.3 Activities in IETF . 13 Bibliography. 14 Rec. ITU-T L.1301 (05/2015) 1 Recommendation ITU-T L.1301 Minimum data set and communication interface requirements for data centre energy management 1 Scope This Recommendation aims to: establish a
19、 minimum data set necessary to manage data centres in an environmentally responsible manner; establish high-level interface requirements for information and communication technology (ICT) and facility equipment communication that contribute to energy saving, energy management and energy-saving evalu
20、ation. 2 References None. 3 Definitions 3.1 Terms defined elsewhere None. 3.2 Terms defined in this Recommendation This Recommendation defines the following terms: 3.2.1 communication interface: An interface through which the management system communicates with the facility equipment and ICT equipme
21、nt. 3.2.2 data centre: A physical location dedicated to computing, as well as a telecom operator location, with equipment dedicated to telecommunication functions (e.g., switching functionality, billing). 3.2.3 dynamic data: Data that is periodically obtained from information and communication techn
22、ology (ICT) equipment and facility equipment. 3.2.4 facility equipment: Equipment that supports the information and communication technology (ICT) equipment (e.g., cooling systems and power feeding systems) used in data centres. 3.2.5 managed entity: An entity, which is a part of an equipment, that
23、is monitored and managed. 3.2.6 management system: A system that collects dynamic/static data and also transmits control data through the communication interface for data centre energy management. 3.2.7 minimum data set: A data set that shall be an essential and minimum set of data transmitted over
24、the communication interface for data centre energy management. 3.2.8 sensor: A device that transforms a physical value (e.g., temperature, current) into an electrical or logical unit. The sensor can be directly connected with a data stream to the management system or via a conversion device. 3.2.9 s
25、tatic data: Data which is constant during operation, such as: specification, configuration and location information. 2 Rec. ITU-T L.1301 (05/2015) 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: AC Alternating Current CPU Central Processing Unit CRAC C
26、omputer Room Air Conditioner DC Direct Current ICT Information and Communication Technology ID Identifier PDU Power Distribution Unit THD Total Harmonic Distortion UPS Uninterruptible Power Supply 5 Conventions None. 6 Architecture of data centre energy management Figure 1 illustrates the architectu
27、re of data centre energy management. It consists of information and communication technology (ICT) and facility equipment, which are managed entities, and a management system. General information on equipment called static data, is transmitted to the management system through a communication interfa
28、ce. Energy-related data from the managed entity should be periodically collected and delivered to the management system. The ICT and facility equipment monitors energy-related data, such as power usage and inlet temperature with an agent program or sensors and transmits them to the management system
29、 through a communication interface. The management system collects these dynamic data from the ICT and facility equipment and analyses them to produce effective information for energy-efficient data centres. The management system also transmits control data to manipulate the ICT and facility equipme
30、nt to manage their energy usage through a communication interface. The requirements of the communication interface and data set from the managed entities are the scope of this Recommendation. Figure 1 Architecture of data centre energy management Rec. ITU-T L.1301 (05/2015) 3 7 Managed entities Mana
31、ged entities for energy efficiency in data centres are categorized into ICT equipment and facility equipment. Managed entities in ICT equipment are server, storage and networking equipment. Facility equipment includes power feeding systems and cooling systems, which are infrastructures to support st
32、able operation of data centres. The power feeding system includes a backup generator, rectifier, alternating current (AC) uninterruptible power supply (UPS), battery, power distribution unit (PDU), etc. The cooling system includes a chiller, cooling tower, economizer, computer room air conditioner (
33、CRAC), modular cooling systems, humidifier, etc. These are the managed entities that should be identified and managed. Specification, configuration and location information on the managed entities are managed as static data. Operating data related to energy management such as energy consumption and
34、temperature is periodically measured and managed as dynamic data. Table 1 shows managed entities for energy management in data centres. Table 1 Managed entities for energy management in data centres Equipment type Managed entities ICT equipment Server equipment Storage equipment Networking equipment
35、 (e.g., switch, router) Facility equipment Cooling system Chiller Cooling tower Economizer Air cooling unit Computer room air conditioner (CRAC) Modular cooling systems (in-row, in-rack, in-chassis) Humidifier Outdoor air system Heat exchanging system Power feeding system Backup generator Rectifier
36、Battery Power distribution unit (PDU) AC high/medium voltage power distribution system AC low voltage power distribution system AC uninterruptible power supply (UPS) AC/direct current (DC) converters (up to 400 V system, -48 V system, etc.) DC/AC inverter Other energy system 8 General requirements f
37、or data centre energy management 8.1 Requirements for communication interfaces Compatibility of communication interfaces should be provided in order to manage data collected from multivendor equipment in an identical way. 4 Rec. ITU-T L.1301 (05/2015) Data should be collected without loss and within
38、 allowable delay times through a communication interface. Communication interfaces should provide a method to retain the integrity of collected data. Errors in data should be detected. Communication interfaces should provide a method to gather dynamic data from a monitoring agent or sensors. Communi
39、cation interfaces and control data should be scalable to the number and size of items of equipment. Communication interfaces and control data should be extensible to support various types of equipment, including multivendor solutions. 8.2 Requirements for measuring data Equipment should have a monit
40、oring agent or sensors to gather dynamic data. Equipment should hold static data and make it available to the management system. Equipment should be uniquely identified also under a multivendor environment. Dynamic and static data should have a unique identifier in view of the management system. Dat
41、a collected from equipment including multivendor solutions should consistently be maintained in the management system. Data should have a specific form to be easily stored and processed in the management system. 9 Minimum data set for energy management in data centres Data on data centre configurati
42、on (e.g., room layout) and facility connection to ICT equipment are stored in the management system. 9.1 Minimum set of static data Data collected from equipment for energy management in data centres are about managed entities. Equipment identifiers (IDs), specifications and configurations for manag
43、ed entities must be collected in order to manage operating and energy related information in data centres. Table 2 shows the minimum set of static data for energy management in data centres. Table 2 Minimum set of static data for energy management in data centres Equipment type Data set ICT equipmen
44、t Equipment ID and description Operating temperature range Cooling equipment Equipment ID and description Energy consumption characteristics of devices used to cool the refrigerant Energy consumption characteristics of devices used to transport the refrigerant Presence or absence of the mode control
45、ling the amount of refrigerant transported Temperature setting range of refrigerant supplied from the indoor unit Temperature setting step size of refrigerant supplied from the indoor unit Rated amount of refrigerant supplied from the indoor unit Power equipment Equipment ID and description Total ca
46、pacity of generator, AC UPS and up to 400 V DC system Number of battery strings and capacity of each battery string Efficiency characteristics Rec. ITU-T L.1301 (05/2015) 5 9.2 Minimum set of dynamic data Dynamic data refers to data that is obtained from managed entities periodically for energy mana
47、gement in data centres. Table 3 lists the minimum data set necessary for evaluating energy efficiency and for controlling ICT and facility equipment in order to save power in data centres. “G“ (Get) in the “Data flow direction“ column represents data that should be obtained from equipment and “S“ (S
48、et) data represents data that should be set to equipment. Table 3 Minimum data set controlling ICT and facility equipment for energy saving management in data centres Equipment type Data set Data flow direction ICT equipment Input power G Inlet temperature G Power state (off mode, sleep, active) G P
49、ower state (off mode, activate) S Facility equipment Cooling equipment Power state G/S (Note 2) Supply air temperature G Return air temperature G Outdoor air temperature G Temperature setting G/S (Note 1) Relative humidity G Power consumption G Energy consumption G Fan speed G/S (Note 2) Power equipment (UPS, rectifier, PDU) Output power G Input power G Input voltage input current of AC UPS/up to 400 V DC/ Inverter/ other energy system G Battery voltage charging/discharging current G Total harmonic distortion
