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  1.    08 Mar 2016 #1
    Join Date : Oct 2013
    Posts : 25,765
    64-bit Windows 10 Pro build 17046

    Heat doesn't kill hard drives. Here's what does


    "Free-cooled" datacenters use ambient outside air instead of air conditioning. That lets us see how environment affects system components. Biggest surprise: temperature is not the disk drive killing monster we thought. Here's what is.

    At last months Usenix FAST 16 conference, in the Best Paper award winner Environmental Conditions and Disk Reliability in Free-cooled Datacenters, researchers Ioannis Manousakis and Thu D. Nguyen, of Rutgers, Sriram Sankar of GoDaddy, and Gregg McKnight and Ricardo Bianchini of Microsoft, studied how the higher and more variable temperatures and humidity of free-cooling affect hardware components. They reached three key conclusions:

    • Relative humidity, not higher or more variable temperatures, has a dominant impact on disk failures.
    • High relative humidity causes disk failures largely due to controller/adapter malfunction.
    • Despite the higher failure rates, software to mask failures and enable free-cooling is a huge money-saver.


    Background

    Datacenters are energy hogs. A web-scale datacenter can use more than 30 megawatts and collectively they are estimated to use 2 percent of US electricity production.

    Moreover, the chillers for water cooling and the backup power required to keep them running in a blackout are costly too. As the use of cloud services has grown, the cost of hyperscale datacenters has led to more experimentation such as free-cooling and higher operating temperatures.

    But to fully optimize these techniques, operators also need to understand their impact on the equipment. If lower energy costs are offset by higher hardware costs and downtime, it isn't a win.

    The study

    The researchers looked at 9 Microsoft datacenters around the world for periods ranging from 1.5 to 4 years, covering over 1 million drives. They gathered environmental data including temperature and relative humidity and the variation of each.

    Being good scientists, they took the data and built a model to analyze the results. They quantified the trade-offs between energy, environment, reliability, and cost. Finally, they have some suggestions for datacenter design...


    Read more: Heat doesn't kill hard drives. Here's what does | ZDNet
      My ComputersSystem Spec
  2.    08 Mar 2016 #2

    I no longer use hard drives.
      My ComputersSystem Spec
  3.    08 Mar 2016 #3
    Join Date : Nov 2013
    Idaho USA
    Posts : 4,826
    OS X, Win 10

    Quote Originally Posted by swarfega View Post
    I no longer use hard drives.
    . . .Really see no reason for them on my systems these days. . .that is just me. . .
      My ComputerSystem Spec
  4.    08 Mar 2016 #4

    I feel I can only use SSDs on their own because I have a backup solution.
      My ComputersSystem Spec
  5.    08 Mar 2016 #5
    Join Date : Aug 2015
    Posts : 28
    Windows 10 Pro/Home, Debian testing

    Quote Originally Posted by swarfega View Post
    I feel I can only use SSDs on their own because I have a backup solution.
    The datacenter of your backup service still uses them.
      My ComputerSystem Spec
  6.    08 Mar 2016 #6
    Join Date : Jul 2015
    Posts : 229
    Windows 10 Pro

    Quote Originally Posted by cameos View Post
    The datacenter of your backup service still uses them.
    Um nope. I use a 4tb external & blu-rays for my backup needs.
      My ComputerSystem Spec
  7.    08 Mar 2016 #7
    Join Date : Dec 2014
    Posts : 437
    Windows 10 Pro x64

    Quote Originally Posted by swarfega View Post
    I no longer use hard drives.
    "High relative humidity causes disk failures largely due to controller/adapter malfunction."

    I imagine this applies to SSD as well as HDD.
      My ComputerSystem Spec
  8.    08 Mar 2016 #8

    Quote Originally Posted by cameos View Post
    The datacenter of your backup service still uses them.
    I dont have a backup service. I use a local NAS. The NAS uses WD Reds.
      My ComputersSystem Spec
  9.    08 Mar 2016 #9
    Join Date : Aug 2015
    Raleigh, NC, USA
    Posts : 1,789
    Windows 10 Pro x64

    Quote Originally Posted by swarfega View Post
    I no longer use hard drives.
    I do. My system partitions are on SSDs, but I store all my goodies on HDDs. The lone exception is my laptop where everything is on SSD.
      My ComputersSystem Spec
  10.    08 Mar 2016 #10
    Join Date : Jun 2014
    Posts : 5,548
    Windows 10 Pro

    On one desktop I have Windows 10RTM on a SSD and Windows 10 Preview on a HDD. On the other Desktop I have Windows 10RTM on a SSD. Then I have two laptops running Windows 10 RTM. One has a SSD and the other still has a HDD. I use HDDs for data and storage.
      My ComputerSystem Spec

 
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