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    3.5" Harddrive temp safety margin in a NAS

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by m8o, Oct 11, 2010.

  1. m8o

    m8o Notebook Evangelist

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    I use a 5-Disk RAID-6 NAS comprised of 5 750 Gig SATA drives for my home notebook networking... it's a Thecus N5200 BR PRO.

    I recently noticed the temps have been running higher than in the past, between 45 - 48 C, where in the past the drives would be in the 35 ~ 39 C range.

    Setting aside "why" for the moment -- I'm guessing dust build-up and hope it is simply that, else, I dunno -- if the operating range specification of the SATA drives are 5C ~ 55C, should I be concerned if the 3 inner drives of the 5-disk array are continuously @ 47-48 C now? Seems a little too close to the high range specification to me, but they're 3.5" drives in continuous RAID use too so maybe I shouldn't be equating it to the temps of a 2.5" drive. (?)
     
    m8o, Oct 11, 2010
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  2. newsposter

    newsposter Notebook Virtuoso

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    what do the spec sheets of the individual drives say?

    the thermal ratings of components will pretty much stay the same whether or not they are in an enclosure or not.......

    Or, overheated is overheated......
     
    newsposter, Oct 11, 2010
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  3. vinuneuro

    vinuneuro Notebook Virtuoso

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    vinuneuro, Oct 11, 2010
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  4. csavery

    csavery Notebook Enthusiast

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    They state in that study:

    High temps being above 40C where failures practically double after 3 years.
    Low temps being 15-30C.

    You may want to arrange for some added air flow on the center drives. On the other hand it may promote staggered failures so that you can replace them in sequence (joke).
     
    csavery, Oct 11, 2010
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  5. m8o

    m8o Notebook Evangelist

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    Thanx for that info folks. It seems being that close to the high-side of the rating is indeed something to be concerned with. (that dramatic increase in failure rate for hot drives at the 3 year mark is very interesting in the google analysis) Looks like increasing the air-flow and/or other things need some attention.

    newsposter, as mentioned the specs for the operating range is 5~55C.
     
    m8o, Oct 11, 2010
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