Share folder has very slow transfer speed

    • Share folder has very slow transfer speed

      I have rock64 single board computer with openmediavault
      I use hdd (Ext4) connected to usb3 port (also i try to use usb3 flash memory)
      I share hdd folder through afp smb ftp protocols. Transfer speed is very slow about 10mb/s
      I use mac with Blackmagic Disk Speed Test with afp also i try windows computer with smb but i have same result
      How i can find bottle neck?

      My disk
      Device Start End Sectors Size Type
      /dev/sda1 2048 976773134 976771087 465.8G Linux filesystem

      hdparm Speed test
      root@rock64:~# sudo hdparm -Tt /dev/sda

      /dev/sda:
      Timing cached reads: 1574 MB in 2.00 seconds = 787.05 MB/sec
      Timing buffered disk reads: 206 MB in 3.01 seconds = 68.49 MB/sec
      root@rock64:~#

      iperf Network test

      Romans-MacBook-Air-3:~ romansemenov$ iperf -c 192.168.100.8 -i 2
      ------------------------------------------------------------
      Client connecting to 192.168.100.8, TCP port 5001
      TCP window size: 129 KByte (default)
      ------------------------------------------------------------
      [ 4] local 192.168.100.3 port 62543 connected with 192.168.100.8 port 5001
      [ ID] Interval Transfer Bandwidth
      [ 4] 0.0- 2.0 sec 17.5 MBytes 73.4 Mbits/sec
      [ 4] 2.0- 4.0 sec 15.8 MBytes 66.1 Mbits/sec
      [ 4] 4.0- 6.0 sec 13.8 MBytes 57.7 Mbits/sec
      [ 4] 6.0- 8.0 sec 15.4 MBytes 64.5 Mbits/sec
      [ 4] 8.0-10.0 sec 12.5 MBytes 52.4 Mbits/sec
      [ 4] 0.0-10.0 sec 75.0 MBytes 62.8 Mbits/sec
    • praporomsk wrote:

      [ 4] 0.0- 2.0 sec 17.5 MBytes 73.4 Mbits/sec
      [ 4] 2.0- 4.0 sec 15.8 MBytes 66.1 Mbits/sec
      [ 4] 4.0- 6.0 sec 13.8 MBytes 57.7 Mbits/sec
      [ 4] 6.0- 8.0 sec 15.4 MBytes 64.5 Mbits/sec
      [ 4] 8.0-10.0 sec 12.5 MBytes 52.4 Mbits/sec
      [ 4] 0.0-10.0 sec 75.0 MBytes 62.8 Mbits/sec
      This is not even Fast Ethernet (90 Mbits/sec) so obviously you're testing Wi-Fi and your interconnection is slow.
    • Some ideas on how to find the bottleneck in no specific order:

      Disconnect everything. Carefully reconnect everything.

      Check the switch. Is it a gigabit switch? Has it worked OK like a gigabit switch in other transfers?

      Disconnect everything else from the switch, that may cause traffic, and see if that helps.

      Replace the network cables. Preferably use short cables that are certified at least cat 6 and worked fine in other transfers.

      Replace the USB cables. Make sure to use USB3 cables.

      Replace one of the nodes at a time and see if you get higher speeds using another node.

      Change the file systems and transfer protocols used and see if that helps. Try ext4 and nfs (possibly using other nodes) and verify that you get gigabit speeds.

      Change the NICs one at a time and see if that helps.
      OMV 4.X.XX, 5 * ODROID HC2, 2 * 12TB, 2 * 8 TB, 1 * 500 GB SSD, GBE, WiFi mesh

      The post was edited 2 times, last by Adoby: gigabit ().

    • Thanks i found
      ai first i check with cable iperf3

      Connecting to host 192.168.100.8, port 5201
      [ 4] local 192.168.100.11 port 52798 connected to 192.168.100.8 port 5201
      [ ID] Interval Transfer Bandwidth
      [ 4] 0.00-1.00 sec 11.5 MBytes 96.4 Mbits/sec
      [ 4] 1.00-2.00 sec 11.1 MBytes 93.2 Mbits/sec
      [ 4] 2.00-3.00 sec 11.2 MBytes 94.5 Mbits/sec
      [ 4] 3.00-4.00 sec 11.1 MBytes 93.3 Mbits/sec


      I have router Huawei B315S with 100 Mbit/sec
      i need change it
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