[yjftsjthsd-h]

I suppose it depends which layer you look at; as a humble sysadmin/user, it certainly behaves like a monolithic system, as opposed to having separate things to configure and invoke for LVM/LUKS/filesystem (which is, after all, the starting topic for this thread). Having only semi-recently seen an internal architecture diagram, I was indeed pleased to see that it's internally a composition of parts that do one thing well, but that's not really user-visible.

Interesting; it'd been claimed to me before that ZFS had its own NFS server (or I guess the OpenSolaris NFS server) included but that nobody used it because it was old/buggy. A quick glance at https://github.com/openzfs/openzfs/ (the old archived version based on illumos, if I read correctly) implies that this might have been true at one point, but indeed https://github.com/openzfs/zfs doesn't seem to do its own NFS so it's not true now if it ever was. Thanks for correcting my understanding.