💡Author's 10GbE Setup Boosts NAS Speed to 7Gbps
10GbE tweak boosts NAS speed from 100Mbps to 7Gbps
TL;DR
After troubleshooting, the author boosted their 10GbE setup's speed from 100Mbps to 7Gbps by tweaking receive buffers and disabling Large Send Offload. This shows how network configuration can dramatically impact performance.
The author's 10GbE setup, connecting a desktop to a UniFi UNAS Pro 8 NAS, was initially running at 100Mbps. After troubleshooting, tweaking receive buffers to 4096 and disabling Large Send Offload (LSO) V2 for IPv4, the speed jumped to 7Gbps. This highlights the importance of network configuration in achieving optimal performance. The key takeaway is that when storage performance is mysteriously slow, it's crucial to look beyond the storage itself and consider network settings.

Key Points
Author's 10GbE setup initially ran at 100Mbps between desktop and UNAS Pro 8 NAS.
Receive buffers were increased to 4096, reducing discarded packets from 268 to zero.
Disabling LSO V2 for IPv4 boosted iperf3 test speed from 1.33 Gbps to 7.03 Gbps.
Robocopy reported 350,201,354 Bytes/sec when copying large files to the UNAS.
SMB writes to six-disk RAID 6 NAS were about 2.8 Gbps after network tweaks.
Why It Matters
If you're setting up a 10GbE network for high-speed file transfers, tweaking receive buffers and disabling LSO can make a huge difference. For example, a 10GbE setup between a desktop and a NAS can go from 100Mbps to 7Gbps. This is especially relevant for teams working with large files and needing fast data transfers.
Frequently Asked Questions
Why does this matter?
If you're setting up a 10GbE network for high-speed file transfers, tweaking receive buffers and disabling LSO can make a huge difference. For example, a 10GbE setup between a desktop and a NAS can go from 100Mbps to 7Gbps. This is especially relevant for teams working with large files and needing fast data transfers.
What happened?
After troubleshooting, the author boosted their 10GbE setup's speed from 100Mbps to 7Gbps by tweaking receive buffers and disabling Large Send Offload. This shows how network configuration can dramatically impact performance.
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