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Seagate Ships 4 TB-class Hard Drives with 1 TB Per Platter Density

Discussion in 'News' started by btarunr, Apr 3, 2013.

  1. remixedcat

    remixedcat

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    5400 RPM drives for my setup... Nope. VMs would run like a dog. Same with video encoding and performance. Best off just having a few smaller cap faster drives. This won't sit too well with the media pro and Hypervisor crowd.

    VMs are slow enough on a 7200RPM drive... let alone a 5200 RPM drive.

    I plan on getting a larger capacity SSD for my VMs when I can afford it.

    Use a laptop (most have 5400/5200 RPM drives) and they are hella slow.
  2. repman244

    repman244

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    Are you sure about that? Because when you look at the performance of the 1,2 and 3TB version of this drive (all of them are 7200RPM and 1TB per platter) it doesn't seem so.
    And not to mention the risk of data loss with 8 R/W heads....
  3. Prima.Vera

    Prima.Vera

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    Noup. Not by far. Having multiple platters doesn't work like internal RAID.
  4. freaksavior

    freaksavior To infinity ... and beyond!

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    I paid $160 each for my 2tb and I bought 4... I love technology prices.
    Crunching for Team TPU
  5. FordGT90Concept

    FordGT90Concept "I go fast!1!11!1!"

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    Yeah, I did some research and the general consensus is that they don't. The main reason why they don't is because a bad sector on one platter would effectively make that area on all platters unusable (capacity would fall much faster due to bad sectors). There's also an issue of circuitry to handle read/writes on 2-5 heads simultaneously.

    If they really wanted to improve performance, it is something HDD manufacturers likely could try but, as far as I know, it hasn't been done yet.
    Crunching for Team TPU
  6. Prima.Vera

    Prima.Vera

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    Yeah. Actually, multi platerrs HDD are slower than single ones. Imagine data fragmented on different platters...
  7. btarunr

    btarunr Editor & Senior Moderator Staff Member

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    In theory, data interleaved across multiple platters is accessed faster.
  8. Aquinus

    Aquinus Resident Wat-man

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    That is why defrag exists. :slap: Actually multi-platter drives read sequential data better because it can read from more platters at once. It doesn't scale perfectly linearly but pretty close. For any hard drive at the same speed (7200rpm, 5400rpms, etc.) more platters with the same density will generally give you better performance. Increasing platter density while maintaining the same speed will also improve performance. Both cases assume the controller on the hard drive isn't bottlenecked.

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