SMB Multi-Channel is a useful performance feature that distributes SMB traffic over multiple network connections, allowing it to scale across multiple network adapters, as well as multiple CPU cores through the use of receive-side scaling (RSS). It is supported and enabled in Windows 10 by default, and Samba has support for it as of version 4.4. At the time of writing, FreeNAS 11 is running smbd version 4.10.2, which of course means it supports multi-channel.
Multi-channel works by making multiple TCP...