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  1. #1
    WHT-BR Top Member
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    Dec 2010
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    [EN] Liquid Cooling





    Ebullient DirectJet Modules mount on top of processors and remove heat through two-phase liquid cooling. (Photo: Ebullient)


    Bill Kleyman
    October 19, 2016

    There is a digital revolution happening within the modern data center. New types of workloads – IoT, Big Data, Cloud – are changing the way we deploy and control our data center infrastructures. Through it all, efficiency improvements have played an enormous role in taming the growth rate of the data center industry’s energy consumption. Without these improvements, staying at the efficiency levels of 2010, data centers would have consumed close to 40 billion kWh more than they did in 2014 to do the same amount of work, according to a study conducted by the US Department of Energy in collaboration with researchers from Stanford University, Northwestern University, and Carnegie Mellon University.

    With that in mind it’s important to ask: What are these major efficiency improvements impacting the digital data center?

    Many data center operators have created a science out of maximizing server utilization and data center efficiency, contributing in a big way to the slow-down of the industry’s overall energy use. Today, data center providers are making investments in improvements that will positively impact the efficiency of their facilities’ infrastructure, as well as the power and data center cooling equipment that supports their clients’ IT gear.

    The proliferation of cloud technologies is absolutely evident in today’s market. Organizations are seeing direct benefits behind a distributed, and robust, cloud ecosystem. Most of all, these organizations are finding amazing ways to leverage cloud services as direct competitive advantages. We’re seeing more use-cases around data analytics, business intelligence, and big data deployments. Here’s the other part, we’re also seeing organizations increase their spend around critical data center and cloud systems.

    “Over the past several years, the software industry has been shifting to a cloud-first (SaaS) development and deployment model,” said Frank Gens, Senior Vice President & Chief Analyst at IDC. “By 2018, most software vendors will have fully shifted to a SaaS/PaaS codebase. This means that many enterprise software customers, as they reach their next major software upgrade decisions, will be offered SaaS as the preferred option. Put together, new solutions born on the cloud and traditional solutions migrating to the cloud will steadily pull more customers and their data to the cloud.”

    In this Data Center Frontier Special Report on Liquid Cooling, underwritten by Ebullient, you will learn about the new requirements surrounding new digital data center demands. Specifically, the paper explores:

    • Impacts of cloud on high-density computing
    • How Big Data is impacting your data center
    • Understanding growing energy and cooling utilization
    • Creating powerful cooling and server designs
    • Understanding liquid cooling: why engineered fluid is better than water
    • Cooling next-generation NVIDIA Tesla K80 GPU cards
    • How liquid cooling is revolutionizing data center design


    Although there will still be a place for traditional, airflow-based, cooling methodologies, many organizations are now looking into liquid cooling for their servers and overall data center environments. Most of all, high density computing, like those used for high performance computing (HPC) and big data, require a new way to remain efficient.

    Next generation data centers will overcome the inherent disadvantages around air cooling through liquid cooling technologies. Liquid cooling systems absorb heat directly at the source (rather than cooling the entire DC space) and greatly reduce flow because liquid densities are about 1,000 times greater than air. Today, single-phase liquid cooling systems absorb heat by warming water-glycol or oil. Unfortunately, water-glycol systems present catastrophic shorting and maintenance risks, while oil immersion systems complicate servicing and often rely on custom server designs.

    http://datacenterfrontier.com/liquid...ud-revolution/

  2. #2
    WHT-BR Top Member
    Data de Ingresso
    Dec 2010
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    17,961

    Ovh


    OVH - Roubaix 4



    OVH - Roubaix 4



    OVH - BHS (Montreal)



    OVH - Varsóvia

  3. #3
    WHT-BR Top Member
    Data de Ingresso
    Dec 2010
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    Ovh











  4. #4
    WHT-BR Top Member
    Data de Ingresso
    Dec 2010
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    Última edição por 5ms; 26-10-2016 às 08:33.

  5. #5
    WHT-BR Top Member
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    Dec 2010
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    Ovh


    Descarte



    Descarte



    Descarte
    Última edição por 5ms; 26-10-2016 às 08:34.

  6. #6
    WHT-BR Top Member
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    Dec 2010
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    Ovh











  7. #7
    WHT-BR Top Member
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    Dec 2010
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    Experiences OVH sur le watercooling


  8. #8
    WHT-BR Top Member
    Data de Ingresso
    Dec 2010
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    Ovh bhs


  9. #9
    WHT-BR Top Member
    Data de Ingresso
    Dec 2010
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    BTW água e eletricidade ... o sistema de combate à incêndio deve ser fascinante

    Fascinante e fantástico: não existe sistema de combate à incêndio em Roubaix-4

    [bing]

    vivien:
    I got confirmation: no system fire OVH but they have staff 24/24 on site.

    It is clear that for Roubaix 4 that could easily extend vertically and the structure wood / metal quickly collapse under heat and the heavy weight of the servers.

    miky01:
    Incredible that their insurance tolerates it ...

    ...

    For water cooling of OVH, I joined quite Leon, it's really "made in Romania" DIY...

    I saw the installation of water cooling at CERN, had really nothing to see, that the pipes armoured with stainless steel sheath, fittings with valve also in stainless steel, and it's not the fleet that goes into it.

    OVH is not a good showing such crafts with their soft plastic pipes and their brides Castorama...

    Leon:
    Maybe they don't even have insurance for their servers and equipment! They have to have a "civil liability" insurance policy, but for the rest, they do as they want, there is nothing compulsory!

    https://lafibre.info/ovh-datacenter/...-roubaix-4/24/

  10. #10
    WHT-BR Top Member
    Data de Ingresso
    Dec 2010
    Posts
    17,961

    Alarme de incêndio e segurança patrimonial 24x24

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