I’ve had great results sticking a single Optane NVME drive in front of my 8x8GB array of spinning rust via ZFS’s built-in cache facility. I’m only doing write c

I’ve had great results sticking a single Optane NVME drive in front of my 8x8GB array of spinning rust via ZFS’s built-in cache facility. I’m only doing write caching and only using 32GiB of my much larger drive (I forget exactly how large lol). That was my comfort zone for how much data I’m willing to lose if something very bad happens to the NAS during a write, and I like giving it a bunch of spare flash space for wear-leveling. https://www.servethehome.com/exploring-best-zfs-zil-slog-ssd-intel-optane-nand/ https://www.servethehome.com/exploring-best-zfs-zil-slog-ssd... is several years old but still a good read.