Reply to thread

Default should be sync write disabled. I was wondering how you could saturate a Gbe connection that's why I was asking :)

Sync = always has a massive drop in performance. On my old setup with 4 WD Red drives I could only get around 20 - 30 MB/s with sync=always. Tried Raid-Z and also mirrored drive pool but performance was always very low.

Only an Intel optane drive helped me to get 300-400MB/s write speed (SLOG device) with 10Gbe and the 4 WD Reds