Extremely slow SMB write speeds

1st Official Post

    Hello all,

    after already trying and analyzing a lot of things I dont know what to do anymore.


    I got the following problem, when uploading things to my OMV server via SMB I have extremely slow speeds (1MB/s), downloading is fine at 80MB/s.


    I checked the following: CPU usage, RAM usage, disk usage, network usage, iperf3 connection. All of this seems to be in order.


    To my architecture: I have OMV running in a VM inside of Proxmox on a Mini PC, I also got some other VMs and Containers inside of Proxmox, I mounted the SMB drive inside some of them. When testing the write speed there I get expected results that roughly match the speed of my USB Hard drive connected to OMV.


    I only get the slow speeds when uploading from separate devices, e.g. my PC or my phone. Iirc it also hasn't always been this way, I used to have faster write speeds over my network.


    I also upgraded to OMV 7 now but the issue persists.


    I would be really happe if any of you could help me.


    Greetings


    ZtormTheCat

  • chente

    Approved the thread.

    Hello,


    i have the same issue sinve i upgraded from OMV 5 to 7. Altough i run the system on real hardware with an core i7 smb write speed

    is painfully slow, reading ist fine tough.


    Best regards

    Patrick

    • Official Post
    Quote from neoowl

    i have the same issue sinve i upgraded from OMV 5 to 7. Altough i run the system on real hardware with an core i7 smb write speed

    is painfully slow, reading ist fine tough.

    I didn't reply to this thread because the OP said his system was virtualized in proxmox, which adds strange unknowns. Is your case the same? If not, you should open another thread.

    Do you have the ClamAV AddOn enabled?

    Had the same issue, slow upload speed. Download was full speed 1 Gbit.

    I checked the upload speed to my HDD (which is used for SMB) via SFTP and the speed was also full speed 1 Gbit.

    I removed the ClamAV AddOn and my speed issue was fixed.

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