As mentioned in other posts I have been using
net-p2p/rslsync with great success. I have three FreeBSD home servers, but two are off-site. I use Resilio to sync my files across three machines. If my house burns down I still have two copies elsewhere. When I built my new home server (AMD Ryzen 5 1600) I simply added my new drives, re-added the sync shares, and mowed the grass while I waited. The old home server was online so that made the data transfer to the new machine very fast. I'm very pleased with this. I'm using UFS, yeah I might get a corrupt file once in a while but none of my data I can take to heaven .
To overcome file corruption, prevent against accidental deletion, etc I still do manual backups using tar to a portable network storage drive.
