TECHNICAL ISO/IEC TR REPORT 20913 First edition 2016-11-15 Information technology Data centres Guidelines on holistic investigation methodology for data centre key performance indicators Technologies de I'information Centres de données Lignes directrices relatives a la méthodologie de recherche holistique pour les indicateurs de performance clé du centre de données Reference number IS0/IEC TR 20913:2016(E) E( International Organization for Standardization @IS0/IEC 2016 ted without license from IHS IS0/IEC TR 20913:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS0/IEC 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org Internationai ibrg DrganizationforStandardization networking permited without license from IHS IS0/IEC TR 20913:2016(E) Contents Page Foreword ..iv Introduction. .V 1 Scope. ..1 2 Normative references ..1 3 Terms, definitions and abbreviated terms ..1 3.1 Terms and definitions. 1 3.2 Abbreviated terms... .2 4 Background and motivation .2 4.1 General concept of holistic investigation method .2 4.2 Usefulness of spider web chart methods for visualizing data centre KPIs ..3 4.3 Usefulness of aggregating data centre KPIs. 4 5 Spider web chart-based KPIs status observation method .4 5.1 Principles for constructing a spider web chart using KPIs .5 5.1.1 Selection of axis on a spider web chart. 5 5.1.2 Presentation of KPIs on axes ..5 5.2 Example of a holistic approach .5 5.3 Example of holistic approach of data centre by use of a spider web chart ..6 6 Control chart method extending a basic spider web chart to observe the operationalstatus .11 6.1 Motivation for control chart method for energy efficiency monitoring .11 6.2 Control chart approach for energy efficiency monitoring 11 7 Considerations for applying holistic investigation methods ..14 8 SwoT analysis results for holistic investigation methods ..14 Bibliography ..16 ii without license from IHS