It is commonly misunderstood that ZIL SLOGs are write-back caches, they are not. They do not speed up large writes that do not fit into memory. I have tested this myself.
You are spreading incorrect information, please stop. You know enough to be dangerous, but not enough to actually be right.
Says that guy that has three times now claimed I called SLOG a write-back cache and yet can't seem to find that quote anywhere. I'd appreciate if you stopped putting words in my mouth and stopped editing your posts to remove your false statements. You're acting like a child.
https://www.truenas.com/docs/references/slog/