New hard disk tech demonstration shows potential for multi-layered granular media, with massive storage capacities coming in the future.
  • pezhore@lemmy.ml
    29·
    6 months ago

    I remember reading an interesting take on the 20TB drives when they came out - the impact of drive failure skyrockets with large density drives.

    Back with 2TB drives, you could fit 60-70 Blu-ray rips. If that drive dies (without backups/RAID), you’ll be hurting but not as bad as if you have a filled 20TB with 600-700 rips. Plus, even with RAID, the rebuild time increases with density, and for 20TB drives you could be waiting a week for rebuild.

    I like the idea of higher density drives, but in my opinion they only really make sense in large drive arrays where you can spread the data over dozens and dozens of replicated drives.

    • mindbleach@sh.itjust.works
      9·
      6 months ago

      I do miss being able to back up my 8 GB drive onto five bucks’ worth of CD-Rs.

      I do not miss having only 8 GB to work with.

    • lud@lemm.ee
      9·
      6 months ago

      but in my opinion they only really make sense in large drive arrays where you can spread the data over dozens and dozens of replicated drives.

      Luckily the ones that are considering buying this have that or something similar and/or extensive backups.

  • Throw a Foxtrot@lemmynsfw.com
    25·
    6 months ago

    The info graphic suggests that they use the different cooling rate of the first and second layer to lock in the applied magnetic field of heat assisted magnetic recording.

    They beat both layers

    They apply a magnetic field to save a “1” bit

    Both layers are magnetized to a “1” bit

    The first layer cools down and locks that bit into place permanently.

    They apply the magnetic field to save a “0” bit

    While the second layer is still hot and accepts the “0” orientation of the magnetic field, the first layer is already too cold and will not change its magnetization.

    The second layer cools down and locks that bit into place.

    Neat!

    • MyNamesNotRobert@lemmynsfw.com
      141·
      6 months ago

      Fuck yes now I can lose 120tb of data and they’ll still refuse to replace the drive despite it being under warranty because apparently 1399235195 bad reads + the drive being unusable isn’t considered broken enough to get a replacement.

    • KairuByte@lemmy.dbzer0.comM
      9·
      6 months ago

      Eeeeh… 26TB drives have been available for a short while now, but keep in mind they are being snatched up almost the moment they go in stock. On top of that, they are undoubtedly an enterprise purchase, with the price that goes along with that.

      I’ve also seen reports that scalpers have been snatching them up, but I don’t have any more than the random opinion of a reporter to back that up, so I’d take it with a grain of salt.

    • bbbbbbbbbbb@lemmy.world
      104·
      6 months ago

      Uhhhhhhhhhhh 3k minimum probably

      Edit: this is HARD DRIVE not SSD, so im estimating $500 instead

      Edit 2: im bad at this

      • astrsk@piefed.social
        231·
        6 months ago

        $500 for 120TB!?

        I spent about $1200 for 100tb of spinning rust for one of my NAS boxes. Please tell me where I can get 20% more for 40% less!

        For clarity, at the $240 per 20tb CMR drive, assuming no inflated cost due to novel production processes, it would be around $1440 for one drive. I’m going to assume ~$1600 minimum. Also, I’m not going to buy one until they can prove it doesn’t have the same issues as shingled drives.

      • Auli@lemmy.ca
        2·
        6 months ago

        I just want giant SSD’s for not an insane price. But don’t see it happening anytime soon.

  • lightrush@lemmy.ca
    7·
    6 months ago

    Multilayer recording sounds like it would require read-rewrite similar to how SMR works. Still perhaps we’d be okay with that for the dramatic capacity increase.