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LaCie Rugged USB-C (4 TB)
150.– CHF 37.50 CHF/1TB

LaCie Rugged USB-C

4 TB

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4.7
944
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249 reviews

  • janspambox

    3 years ago •
    purchased this product

    SMR (Shingled Magnetic Recording) = write speed collapses when you fill the disk!

    I bought the 5 TB Lacie Rugged USB-C. A Seagate ST5000LM000-2AN170 was installed.

    When sequentially writing large amounts of data, the hard drive initially behaves inconspicuously: The first terabyte was written with 110     MB/s.

    But after the first ~3.5 TB were on the drive, the data rates collapsed to an average of about 31 MB/s (with strong fluctuations, often much slower), even when writing sequentially!

    The hard disk uses a technique called SMR (Shingled Magnetic Recording) without declaring it. This allows a 4TB hard disk to be sold as a 5TB hard disk, but the data has to be written in a very specific way - this results in the hard disk having to "reorder" large amounts of data every time a file is changed, which of course takes time.

    The test I did was still an ideal case for the hard drive - the drive wasn't even full and I was writing to it for the first time. Even SMR could achieve good performance in this case! The real problems will start when the drive is completely full for the first time, some of the data is erased, and it needs to be replaced. Then the write speed will be much worse.

    Unfortunately, only noticed when the return period was already around. None of the tests shown by Digitec pointed this out, they probably all just "test" if the case looks nice.     

    Pro

    • Good, as long as you don't use the drive

    Contra

    • SMR
    • Write speed collapses completely when the drive fills up
    • fuck with

    This review was created for a different variant: Rugged USB-C (5 TB)

  • Anonymous

    7 years ago •
    purchased this product

    Cool part

    Start with a quick format and you're ready to go. Storage space without end, the thing is simply awesome.
    With USB 3.0 and USB-C both have a good transfer speed and are absolutely recommended!
    Also works with mobile phones     that have USB-C ports. 

    Pro

    • Transfer speed
    • Design
    • Interface - USB-C
  • Ramseier61

    7 years ago •
    purchased this product

    Would recommend this product to others.

    Very good product for mobile use

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