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Synology local external HD backup USB 3.0 speeds

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  1. #1

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    Synology local external HD backup USB 3.0 speeds

    Curious what other people get with their local disk backups?

    For me

    Synology with the following processor

    Intel Atom D2700 Dual Core 4 Yes Cedarview

    USB 3.0 interface
    2019 WD external 10Tb drive

    I average about 75MB/s on continuous compressed backup stream
    MandM! likes this.

  2. #2

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    Exciting specs.

    Cheeky Kiwi likes this.

  3. #3

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    Uh, honestly no idea! It's just an external disk attached to the server and every once in a while a backup job kicks off. As long as it doesn't take multiple days, I'm not worried about throughput.

    It's probably limited to either the USB3.0 link that I'm using, or the single disk that's being written to. Mine chews up a fair bit of CPU because it compresses during the write.


  4. #4

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    So it is my CPU, which is admittedly a weak NAS CPU which is giving me a 75MB/s slow(er) transfer speed.

    REAL WORLD I have been getting about 5 TB/day to a single drive.

    From the link below: it is clearly not the hard drive that is the limiting factor:
    https://www.tomshardware.com/reviews...dd,5277-2.html


  5. #5

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    Why do you need to be backing up 5TB per day? Sounds a little extreme?

    My comment was for personal/home stuff, but even for an office 5TB is lots for just a day.


  6. #6

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    I have a Synology DS415+.
    It has 1 USB2.0 port in the front, and 2 USB3.0 on the back.
    When I plugin an external HD on these ports, nothing happens.
    I would have thought my PC would detect it as a new drive ? But no.


  7. #7

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    Quote Originally Posted by jrkob
    I have a Synology DS415+.
    It has 1 USB2.0 port in the front, and 2 USB3.0 on the back.
    When I plugin an external HD on these ports, nothing happens.
    I would have thought my PC would detect it as a new drive ? But no.
    The drive is connected to the Synology, not your computer. The operating system on the Synology will detect it as a new drive.

    You can additionally configure the Synology to share that drive and then attach your PC to that drive, like any other network share from your NAS.

  8. #8

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    @shri, ok thank you for the explanation, I understand. Yes, I can see the external HD on my NAS now.
    @chichow, my transfer speed between my NAS and my external HD is the same as you. Between 70 and 75MB/s.


  9. #9

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    Thanks! for the confirmation.


  10. #10
    bdw
    bdw is offline

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    Well I backup to Amazon glacier Oregon site and the first time I kicked this off about 7 years ago it did take about a month to complete the backup . Now it just runs incrementally every Sunday morning and takes anywhere from 5 seconds to a few hours to complete (if I've dumped a large number of photos or videos onto it in the previous week).

    Im transporting my NAS by sea to Australia in a couple of weeks, so yeah will do a local USB backup at this time as an extra layer of protection because if I ever need to restore from Glacier I believe it might also take weeks or months to restore depending on how much I want to spend (faster restore speeds cost more money I believe).


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