SMB Speed collapse

  • Hi.

    Since about 2 Weeks I have a problem with my smb shares:

    When writing files from my computer (win10) to my smb shares it starts with ~80MB/s, after about 10-15 seconds the speed drops and swings between 3-12 MB/s and remains till the end.

    Reading files from the smb-share is constant ~100MB/s.

    Any suggestion where to look ?

  • Found something, but don't know if it could be a reason:

    The OMV-server has 5 netword cards: onboard realtec chip an a 4-port intel networkadapter.

    The 4 ports are bonded to bond0, ip-adress, the realtec port has the ip

    the one port is for administration (because in OMV 2 the bonded ports sometimes disappeared and my server wasn't reachable until I did omv-firstaid on the console).

    When setup the server with omv 5 I created the bond via webgui. Just about two weeks ago I saw that the bond wasn't shown anymore in the networkadapters, so I created a new bond, but it was shown as bond1.

    Today I connected a Monitor to the server and saw some lines "bond0: inavlid new link on slave....", also for bond1.

    "ip link show" showed me the 4 intel ports as master for bond0 and bond1, also bond0 and bond1 with the same ip-adress.

    I deleted the bond1 via GUI and rebooted the server.

    Now something strange: In Networksettings there's only 1 networkadapter (the realtec), "ip link show" shows also the bond0 and all 4 intel ports as master for bond0, but the console on the monitor shows me "to manage the system visit the omv web control panel: bond1:".

    I think my network config is messed up.

    "cat /proc/net/dev" also shows a lot of dropped received packages

    OMV-firstaid doesn't show the the bond adapter, just docker0, the 5 ports and 3 virtual ports for the docker container

    how can I clean up this ?

  • sharing OS & OMV version infos would be a good starting point

    omv 5.6.21-1 (usul) on RPi4/4GB with Kernel 5.10.63 and WittyPi 3 V2 RTC HAT

    2x 6TB HDD formatted with ext4 in Icy Box IB-RD3662-C31 / hardware supported RAID1

    For Read/Write performance of SMB shares hosted on this hardware see forum here

  • how can I clean up this

    AFAIK OMV uses netplan for networking, you could start by looking in /etc/netplan and there's almost certainly reference in /etc/openmediavault/config.xml

    From what you've found it would suggest that bond1 is still being referenced somewhere,

    Raid is not a backup! Would you go skydiving without a parachute?

  • tschensie

    Added the Label resolved

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