A few years ago, my answer for servers would have been ZFS. However, given that the FreeBSD and ZoL source trees are now the same, I don't think that's necessar

A few years ago, my answer for servers would have been ZFS. However, given that the FreeBSD and ZoL source trees are now the same, I don't think that's necessarily the case. ZFS is still more of a first-class citizen on FreeBSD than Linux, but the distinction is minor at this point. I think the fact that the most recent version of TrueNAS (the people behind FreeNAS) is Debian based as opposed to FreeBSD based, says a lot. I also migrated a couple of large FreeBSD fileservers that were using ZFS over to Linux because the clients were also Linux-based (HPC cluster). Specifically, I switched over to Linux for the file servers so I could use Gluster to combine namespaces for large file shares. The Gluster version that is supported by FreeBSD is a few versions old. I was sad to make the switch. I still like how "clean" the base FreeBSD install feels though. It is minimal with very little cruft. Things work simply and are easy to customize.