Desertwolf

Hi and thanks for your reply. With single stream I get 1.82 Gbits/sec

Hi all, I'm having an issue where SMB connections to my UnRAID NAS are only around 130 MB/s, even with 2.5G hardware. Setup: Win11 Client (Intel X520 DA1 10G PCIe Card) 10G DAC Cable (2,5m) Switch (4x 2.5G, 2x SFP+) Ugreen DXP4800 (2x 2.5G) (ZFS Pools for Cache and for HDDs) SMB Transfer PC (SSD) to Unraid (NVME): iperf3: Looks Perfect for 2.5G Setup, so I guess my Hardware is not the Problem here. SMB settings: I have already tried: Use bigger File (32GB Backupfile) Enable Jumbo Frames Use direct Disk Share Reboot PC / NAS Disable Network teaming Robocopy with /MT Set-SmbServerConfiguration -EnableMultiChannel $true Disabled flow control Changed PCIe x16 Slot from x2 > x4 Checked SMBv1 was disabled Tried NFS but same slow speed Disabled Windows Defender Disabled Interrupt Moderation & Rate > Speed jumped to 200 MB/s I have had some luck so far and would really appreciate it if anyone could suggest what the problem for the rest might be.