tag:blogger.com,1999:blog-4384692836709903146.post4831753495980604034..comments2024-03-27T09:55:23.143-07:00Comments on Dispatch from the Digital Health Frontier: Kill a Watt!John Halamkahttp://www.blogger.com/profile/04550236129132159307noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-4384692836709903146.post-80165132845617019552009-06-16T03:28:13.238-07:002009-06-16T03:28:13.238-07:00This section leads me to a couple of questions:
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At that time we had two power meters. The first monitored the machine load including the UPS and all PDU's, servers, storage, network devices and printers connected to the UPS. The second monitored the mechanical load including the data center lighting, cooling and humidity control systems. These meters gave us gross statistics which we began to log so the trends could be monitored over time. This also helped us monitor the ratio between the machine and mechanical loads which led to improvements noted in my earlier posting. <BR/><BR/>To obtain more granular data, we had to take sample readings off the circuits in the power distribution units (PDUs). This was time-consuming, but worthwhile as it allowed us to baseline what was consuming electricity and provided direction to our efforts to conserve. Our data showed...<BR/><BR/> <BR/> System KW<BR/><BR/> Mainframe server 4<BR/> Unix/Linux servers 23<BR/> MS Windows servers 61<BR/><BR/> SAN attached storage 17<BR/> Content Addressable Storage 3<BR/> Tape storage 5<BR/><BR/> Data center network switches 18<BR/> High speed printer 1<BR/> Command center monitors 14<BR/><BR/> Total 146<BR/> <BR/>Taking readings in this way was time-consuming and still did not give us the full granularity we desired. To resolve this, we budgeted an upgrade of our PDUs this year. The new units will allow us to do circuit monitoring. By interfacing the new PDU's to our environmental monitoring software, we will be able to trend consumption over several months. More importantly, we will be able to provide detailed feedback to staff on their "kill-o-watt" efforts as positive reinforcement. <BR/><BR/>I have also tied data center electrical consumption to the performance pay of my infrastructure manager. If the data center grows to more than 220KW, we will encounter various electrical and mechanical chokepoints such as computer room air conditioning units, pumps, dry coolers, transformers, and so forth. The performance goal I have set is to deploy technologies and system practices that will contain the growth of our data center machine load to no more than 220kW capacity over the next 10 years. So far, we are on track to do this. Part of our success will be how quickly our major vendor partners such as EMC, HP and Cisco are able to "green-up" their products.John Halamkahttps://www.blogger.com/profile/04550236129132159307noreply@blogger.comtag:blogger.com,1999:blog-4384692836709903146.post-8221355420071507682007-10-30T07:22:00.000-07:002007-10-30T07:22:00.000-07:00John, great post! I really enjoyed your explanatio...John, great post! I really enjoyed your explanation of how you initially measured data center consumption and what steps you took to improve on these metrics.<BR/><BR/>This section leads me to a couple of questions:<BR/>-How did you initially begin measuring the 'whole data center' consumption, including cooling, servers, storage, etc?<BR/>-Has the organization tied IT performance evaluation and reward to data center consumption? If so, how did this come about? Was it a difficult decision or 'tough sell' to go this route?Thundertypehttps://www.blogger.com/profile/18060346796327365380noreply@blogger.comtag:blogger.com,1999:blog-4384692836709903146.post-59699170878352433292007-10-30T02:32:00.000-07:002007-10-30T02:32:00.000-07:00Not related to this, but please check out Grand Ro...Not related to this, but please check out Grand Rounds today at http://runningahospital.blogspot.com/2007/10/grand-rounds-volume-4-number-6.html. Some moving and insightful stories about experiences in hospitals. Thanks.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4384692836709903146.post-84276033418464587282007-10-29T13:38:00.000-07:002007-10-29T13:38:00.000-07:00Nicely done, keep up the good work.Hadn't heard "k...Nicely done, keep up the good work.<BR/><BR/>Hadn't heard "kill a watt" -- that's catchy. I also like Amory Lovins' term: negawatts.Jon Udellhttps://www.blogger.com/profile/16301072968955515610noreply@blogger.com