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THE DATA CENTER JOURNAL | 1 FEATURE 2 DATA CENTER DESIGN: THE CLOUD FACTOR By Jeffrey R Clark, PhD The growing use of cloud computing has influenced data center design from the macro level to the micro level. At the macro level, it has led to consolidation as companies seek to outsource duties that are peripheral to their central business—often including large portions of IT. But the cloud still needs data centers to provide services, and the more efficiently they operate their facilities, the potentially greater their profit margins. 6 SHIFTING "LEFT" IN MISSION- CRITICAL CONSTRUCTION By Mike Fernholz Compressed schedules; less room for error; tight budgets. Construction challenges may sound familiar, but innovations implemented at the beginning of projects are helping teams overcome them—so why should commissioning be any different? In today's quest for even faster deployment of mission-critical facilities, it's imperative to find opportunities to not only shorten schedules but also to reduce the risk of delays. One way to do so is to shift commissioning activities left, creating fully functional systems off site earlier in the process to head off potential misalignments and project delays. 10 400G: TIPS FOR DATA CENTER DESIGNERS By Mike Connaughton As the IT industry has adapted to rapid data growth, the outlook shows more growth that can't always be predicted. Much like the way in which network connectivity went from 10 Gbps to 40 Gbps in recent years, hyperscale data centers have grown to using 100 Gbps connectivity—a shift that required many changes and nuances—with individuals who dealt with the network side of the business having to quickly learn new processes and implement new systems. 14 EVOLVING DESIGNS FOR RACK-SCALE ARCHITECTURES By MD Truong In today's hyperscale data center, the focus has moved from designing servers to designing racks, giving us the aptly named rack-scale architecture. The Open19 Foundation was designed to give the data center industry a hardware platform around this type of architecture and to create standards and designs that are customizable, flexible and economical—and that fit any 19" rack environment. (Hence the name "Open19.") All rights reserved. No portion of DATA CENTER Journal may be reproduced without written permission from the Executive Editor. The management of DATA CENTER Journal is not responsible for opinions expressed by its writers or editors. We assume that all rights in communications sent to our editorial staff are unconditionally assigned for publication. All submissions are subject to unrestricted right to edit and/or to comment editorially. AN EDM2R ENTERPRISES, INC. PUBLICATION ALPHARETTA, GA 30022 PHONE: 678-762-9366 FAX: 866-708-3068 | WWW.DATACENTERJOURNAL.COM DESIGN : NEATWORKS, INC., JOHNS CREEK GA 30022 TEL: 678-392-2992 | WWW.NEATWORKSINC.COM VENDOR INDEX

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