Comment on If you were to suddenly come into possession of 12+ enterprise-grade SAS hard drives, how would you go about incorporating them into your homelab?

TheInsane42@lemmy.world ⁨11⁩ ⁨months⁩ ago

• archomrade@midwest.social ⁨11⁩ ⁨months⁩ ago

  This is a great observation, and it made me do some math:

  If my point of comparison is something like a seagate ironwolf 4T vs a WD Ultrastar 4T:

  Seagate Ironwolf: 
  - 3.7W*24 Hours/day*635 days/year = 32kWh per year * $0.18/kWh = $5.84 per year in power usage * 12 disks in an array = $70.02 per year
  
  WD Ultrastar:
  - 7W*24 Hours/day*635 days/year = 61kWh per year * $0.18/kWh = $11.05 per year in power usage * 12 disks in an array = $132.6 per year
  

  Seems like i’d save maybe $70 per year. I feel like that difference might even be justifiable if the enterprise drives are half as likely to fail (seagate ironwolf has an AFR of 0.87%, WD Ultrastar is 0.44%).

  Something to think about, at least

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  • acockworkorange@mander.xyz ⁨11⁩ ⁨months⁩ ago

    635 days is a fucking long year.

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    • archomrade@midwest.social ⁨11⁩ ⁨months⁩ ago

      Lol, thanks

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    • jkrtn@lemmy.ml ⁨11⁩ ⁨months⁩ ago

      2020 mood math.

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    • CazRaX@lemmy.world ⁨11⁩ ⁨months⁩ ago

      Sometimes a day just FEELS like it’s 48 hours long.

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  • TheInsane42@lemmy.world ⁨11⁩ ⁨months⁩ ago

    In defence, the power prizing here is a tad different, €0.45/KWh was the prize here. Also, when those disks are given away, they are usually smaller then the current standard and less efficient. On the other hand, those enterprise grade disks generate some heat, saving on the heating bill.

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    • archomrade@midwest.social ⁨11⁩ ⁨months⁩ ago

      that’s all true. I’m anxious to get them open and see what they test at; it really seems like some of them are unused, but that could just be because they were refurbished and re-packaged. I’m really curious what the spin times are.

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• BaldDude@sh.itjust.works ⁨11⁩ ⁨months⁩ ago

  Please do not sell used enterprise hard drives, especially if you got them from your empoyer. This is how those emberrasing company secrets get leaked and we can’t have that can we? :)

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  • TheInsane42@lemmy.world ⁨11⁩ ⁨months⁩ ago

    Then those disks should have been wiped at the company before they were allowed to leave the building.

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    • BaldDude@sh.itjust.works ⁨11⁩ ⁨months⁩ ago

      Yes!

      Yes, they should have been wiped. (and then they should have been fed into a blender if i had my way.) :)

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• meiti@lemmy.world ⁨11⁩ ⁨months⁩ ago

  solid advice.

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