Comments on: Uptime: Companies Gaming PUE Numbers http://www.datacenterknowledge.com/archives/2008/08/15/uptime-companies-gaming-pue-numbers/ News and analysis about data centers, cloud computing, managed hosting and disaster recovery Mon, 13 Feb 2012 17:24:17 +0000 hourly 1 http://wordpress.org/?v= By: TH http://www.datacenterknowledge.com/archives/2008/08/15/uptime-companies-gaming-pue-numbers/comment-page-1/#comment-450 TH Tue, 02 Sep 2008 03:08:23 +0000 http://dev.datacenterknowledge.com/archives/2008/08/15/uptime-companies-gaming-pue-numbers/#comment-450 One should get more than one perspective. These really capture what is going on: http://techhermit.wordpress.com/2008/08/29/ken-brill-continues-to-use-his-bully-pulpit-to-slow-down-data-center-energy-efficiency-measurement-adoption/ http://www.greenm3.com/2008/08/uptime-institut.html One should get more than one perspective. These really capture what is going on:

http://techhermit.wordpress.com/2008/08/29/ken-brill-continues-to-use-his-bully-pulpit-to-slow-down-data-center-energy-efficiency-measurement-adoption/

http://www.greenm3.com/2008/08/uptime-institut.html

]]> By: Dave mcil http://www.datacenterknowledge.com/archives/2008/08/15/uptime-companies-gaming-pue-numbers/comment-page-1/#comment-444 Dave mcil Fri, 29 Aug 2008 00:14:20 +0000 http://dev.datacenterknowledge.com/archives/2008/08/15/uptime-companies-gaming-pue-numbers/#comment-444 What is all this rubbish about. stop casting stones at each other and work together to over come the problems of measurement and standards. First of all the Up time Instate (private company) has developed a system for reliability and risk management metric and appear to be seeing a PUE measurement as a challenge to their privately owned commercial venture. The tier rating system is so open you could drive several trucks though it that is why people are miss using it. The PUE system is an efficiency measure nothing to do with Risk or availability, if fact most data centre operators need to establish what they will except in the balance to efficiency and reliability. The PUE system is also not perfect and will never be able to be used to compare centres totally and should not used as a critical measure. Every data centre has a different operational purpose and objectives and this is what dictates the acceptable level of risk and its balance against efficiency . As a final word and what I see as the most critical point is that neither of these two system are a legitimate standard, the tier system is privately owned and used to generate income and thus can never be a legitimate standard USA or international standard as it can never be used freely by anyone and certainly from an over seas point of view is no where near sufficient. The PUE is a measurement method and needs to be developed, this type of metric could be used in a legitimate standard as a tool but is can never be used as a standard. Both the Tier rating system and the PUE is being incorrectly used because we don't have the correct tools. If everyone works together we actually may get some tools. What is all this rubbish about. stop casting stones at each other and work together to over come the problems of measurement and standards.
First of all the Up time Instate (private company) has developed a system for reliability and risk management metric and appear to be seeing a PUE measurement as a challenge to their privately owned commercial venture.
The tier rating system is so open you could drive several trucks though it that is why people are miss using it.
The PUE system is an efficiency measure nothing to do with Risk or availability, if fact most data centre operators need to establish what they will except in the balance to efficiency and reliability.
The PUE system is also not perfect and will never be able to be used to compare centres totally and should not used as a critical measure. Every data centre has a different operational purpose and objectives and this is what dictates the acceptable level of risk and its balance against efficiency .
As a final word and what I see as the most critical point is that neither of these two system are a legitimate standard, the tier system is privately owned and used to generate income and thus can never be a legitimate standard USA or international standard as it can never be used freely by anyone and certainly from an over seas point of view is no where near sufficient.
The PUE is a measurement method and needs to be developed, this type of metric could be used in a legitimate standard as a tool but is can never be used as a standard.
Both the Tier rating system and the PUE is being incorrectly used because we don’t have the correct tools. If everyone works together we actually may get some tools.

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