Which WD Purple Hard Drive

Discussion in 'NVR's, DVR's & Computers' started by Rhodesy, Sep 10, 2019 at 2:53 AM.

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  1. Rhodesy

    Rhodesy Young grasshopper

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    Hi guys,

    I'm wondering what you guys think is better 8TB Purple HDD, the WD81PURZ 5400rpm or the WD82PURZ 7200rpm?

    I've emailed WD also but thought I'd ask the community also.
    I will update the thread with WD's response if indeed they respond.
     
  2. Walrus

    Walrus Pulling my weight

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    7200 is going to be noisier, generate more heat, and use more electricity. It's unnecessary unless you have a ton of cams writing to one drive.
     
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  3. Rhodesy

    Rhodesy Young grasshopper

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    So what's a ton of cameras? I'll just have max 10 x 2mp dahuas
     
  4. TL1096r

    TL1096r Pulling my weight

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    I feel 7200rpm would have higher failure rate and offer no real benefit. Go with 5400.
     
  5. mat200

    mat200 IPCT Contributor

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    Hi @Rhodesy

    As per the WD data sheet:
    https://documents.westerndigital.co...d/data-sheet-wd-purple-series-2879-800012.pdf

    upload_2019-9-10_22-24-38.png

    The 8TB WD82PURZ MTBF is 50% higher ( better ) than the WD81PURZ

    Without additional information to confirm / challenge this I would pick up the WD82PURZ over the WD81PURZ ( power consumption appears very close to each other )
     
    Last edited: Sep 11, 2019 at 2:36 AM
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  6. TL1096r

    TL1096r Pulling my weight

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    Interesting. I have a 7200RPM and 5400RPM. I cannot see differences.

    Let us know what WD says. Maybe also send them how you will be using to see if it changes their answer.
     
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