[yjftsjthsd-h]

I particularly don't buy it because ZFS used to have a FUSE build, and I'm pretty sure there's at least one company still running it in userspace in some form (something for k8s, IIRC?)

[aidenn0]

Maybe they meant that they couldn't separate out the various layers of ZFS into their own services?

[yjftsjthsd-h]

I guess? I'm not personally convinced that even 1 ZFS service per zpool would be a serious problem, but I can see why it would be considered unideal to a microkernel designer.