> the only large target using FreeBSD I can think of is Netflix, but AFAIR they don't use ZFS either.

I can't quite remember, but I think they might have mentioned using ZFS rather than UFS for the OS, but I'm pretty sure they're not using it for the CDN data partitions. I love ZFS, but for CDN nodes, I think it would be more harmful than helpful; especially how ARC is separate from the FreeBSD 'Unified Buffer Cache', and how much work Netflix has done to reduce the number of times data hits RAM on the way from disk to the user.

> Oracle sues when there's $$$ to make, but I don't think ZFS would warrant them much.

(Agreeing with you), if they are using ZFS for the OS and Oracle makes ZFS toxic, it shouldn't take long to ditch it.