Hot stuff - 40 Deg C
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Hot stuff - 40 Deg C
29-09-2014 7:02 PM
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Though I don't think the Operators would be so keen on the environment.
Re: Hot stuff - 40 Deg C
29-09-2014 7:10 PM
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I got a bollocking for downing the main server before it fell over, management don't understand do they?
Re: Hot stuff - 40 Deg C
30-09-2014 8:27 AM
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I still remember the sound of the large hard drives running down in otherwise total silence after I triggered the EPO button.
Re: Hot stuff - 40 Deg C
30-09-2014 8:46 AM
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http://www.independent.co.uk/life-style/gadgets-and-tech/news/facebook-launches-arctic-data-centre-i...
"hot" running servers would in theory allow them to be continue building data centres in more temperate areas like the UK and USA without needing the excessive cooling of the past whilst not loosing the capabilities ....
I'd rather they were investigating another option though like building systems that were self cooling so the room didn't require such monstrous power requirements but I guess that would be too expensive to get running in a short time frame
Re: Hot stuff - 40 Deg C
30-09-2014 10:12 AM
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When I last worked in a server environment, the fad was for small ff (1U) servers doing one job, as I left it was for large (6-8U) servers doing the work of 8-10 servers. Now there are modular servers where you can plug in a cage that will handle 4-6 servers on one plug, and you can put 4 in the main chassis. That and hdd's getting larger, I worked on servers who's hdd's were 3-5*4Gb or 2x2Gb + 3*9Gb and they were considered high powered then, now it would be disk arrays in the Tb classes.
Re: Hot stuff - 40 Deg C
30-09-2014 10:26 AM
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but you still have the problem of how to get rid of the generated heat to keep the machine cool enough to run at optimal performance, in the past this has meant some room with a complete air control system and very non eco refrigerant filled units, this new hot server tech will allow them to use less environmentally harmful cooling solutions without needing to relocate to the sub zero temps of the arctic or Antarctic to achieve the lower temps,
but surely there would be a better way of achieving the cooling needed without running things at higher temps whilst still being more environmentally friendly
Re: Hot stuff - 40 Deg C
30-09-2014 10:47 AM
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My mate used to work on a laser cutter, the unit was water cooled, DI water ran over it & through it, no need for heat sinks.
Re: Hot stuff - 40 Deg C
30-09-2014 12:27 PM
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Some of this was alleviated by the introduction of Virtual Machines, where you might take the load from 10 boxes and run it on one powerful server, but as the workload on the powerful server grew so did the heat output. You need a lot of energy to run air conditioning and maintain low (20 Deg C) air temperatures. It was getting to the point where the Power overhead for a data centre was 100% of the actual server demands. (PUE of 2). The carbon cost of this extra power is quite high. 100KW hours represents a power station burning one tonne of coal to generate the energy which in in turn generates a couple of tonnes of CO2. So efforts are mounting to reduce the amount of energy used to run a data centre (Google manages about PUE 1.2).
If you use Free Air Cooling the only power used is to power the fans to circulate the air. This works better in colder climates, but this is not always convenient to the business location. An alternative is to run the data centre equipment at higher temperatures, it reduces the amount of power needed to provide cooling. 45 Deg C as to 20 Deg C). Water cooling is more efficient than air, but people don't want water next to circuit boards, Liquid CO2 is seven times better at removing heat compared with water, but need 50 atmosphere pressure. A growing trend is to use electrically inert fluids to provide immersion cooling.
Re: Hot stuff - 40 Deg C
30-09-2014 12:54 PM
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To argue with someone who has renounced the use of reason is like administering medicine to the dead - Thomas Paine
Re: Hot stuff - 40 Deg C
30-09-2014 12:59 PM
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certainly repurposing existing space would require new methods but surely when building from the ground up the old and established methods would be far better ....
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