ZFS, 512e and 4KN drives

Discussion in 'Hard Drives and Solid State Drives' started by loxsmith, Sep 20, 2019.

  1. loxsmith

    loxsmith New Member

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    I'm looking to put 6 drives, 8TB, in a ZFS Raid Z2. Should I look at 512e or 4kn drives?

    Looking at Seagate Ironwolf. (NE=pro drives). I've found five different current models, so it's quite confusing!

    This is for a home office development box.

    "512E" (512B emulated)
    ST8000VN004
    ST8000NE001
    ST8000NE0004

    "4KN" (4K native)
    ST8000VN0022
    ST8000NE0021

    Which is best for ZFS (ashift=12 vdevs) ?
    (OpenZFS on Linux)

    Advantages of 512e vs 4kn ?

    Thanks!
     
    #1
  2. redeamon

    redeamon Member

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    No difference between 512e vs 4kn with ZFS. Just make sure your pool is ashift=12 for 4k sector size and the overhead of 512e will vanish as the drive is seen as 4kn.
     
    #2
    Last edited: Sep 20, 2019
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