Hello everyone,
Two days ago I set up my own NAS thanks to openmediavault. With the help of various tutorials and my knowledge I deployed my NAS without any problems.
However, once everything was set up, when it came time to transfer my files, I realized that my transfer rate is really low (10-11 Mbps). I noticed that when I pause the transfer and then restart it for a few seconds my transfer rate is around 90-125 Mbps for 3 to 10 seconds depending on the files. ( see attachements, the peak occurred when I stopped / restarted the transfer )
Here are the specifics of my installation:
- Modem and others -
Thomson TG787 3x100Mps ports
2 Category 7 cables ( Nas + my computer )
- NAS -
Motherboard: ASRock B550M-ITX/AC
Hard disk: OS KINGSTON SKC2000M8250G
DATA: 3x ST4000VN008-2DR166 4TO ( ext 4 )
Ethernet network
Before posting on the forum, I inquired on the internet and followed various solutions :
- Tried a transfer from another gaming laptop ( with a SSD ), in ethernet and wifi for both of them.
- Tried to uncheck the SMB1.0/CIFS in windows fonctionality
- Tried the various solutions of the topics Tunning samba for more speed 1&2.
- Made all check about update on NAS and Windows side
- I looked at the common problems too :
- Slow router/switch > The ports of my router have in 100Mb/s
- No switch. > i have no switch
- Slow USB interface. > I don't use USB
- WiFi is used. > im in ethernet ( router and PC )
- NTFS is used on the NAS. > im in ext4
- Slow and feeble Windows client. > My computer is powerful, I tried the transfer on my SSD.
- Bad cables. > New Cat 7 cables
- Network extensions using power lines. > I am in LAN
- Bad network configuration. > I don't think so, my architecture is simple, NAS and pc connected on my router, nothing more.
- Slow drives > The hard drives I bought are made for NAS
- Slow network interface. > How can I check this?
- Small NAS overloaded with multiple tasks/transfers. > During a transfer, my CPU load is 0.8%, and my RAM load is 2.7%.
Finally, here is a speed test that i did with iperf :
Connecting to host 192.168.1.200, port 5201
4] local 192.168.1.5 port 53021 connected to 192.168.1.200 port 5201
ID] Interval Transfer Bandwidth
4] 0.00-1.00 sec 11.5 MBytes 96.4 Mbps
4] 1.00-2.00 sec 11.2 MBytes 94.3 Mbps
4] 2.00-3.00 sec 11.2 MBytes 94.4 Mbps
4] 3.00-4.00 sec 11.4 MBytes 95.5 Mbps
4] 4.00-5.00 sec 11.2 MBytes 94.3 Mbits/sec
4] 5.00-6.00 sec 11.2 MBytes 94.4 Mbps
4] 6.00-7.00 sec 11.2 MBytes 94.4 Mbps
4] 7.00-8.00 sec 11.4 MBytes 95.4 Mbps
4] 8.00-9.00 sec 11.2 MBytes 94.4 Mbps
4] 9.00-10.00 sec 11.2 MBytes 94.4 Mbps
ID] Interval Transfer Bandwidth
4] 0.00-10.00 sec 113 MBytes 94.8 Mbits/sec sender
4] 0.00-10.00 sec 113 MBytes 94.7 Mbits/sec receiverCould you help me / Do you think to know where the problem comes from ?
Thank you for reading me 
