I've been really happy with Rockstor - http://rockstor.com/ - it's essentially like FreeNAS, but with Linux, Btrfs, and lower RAM requirements.
I have a mirrored 2x6TB setup that all of my computers back up to. It shows up as an Apple TimeMachine, so MacBook backup and restore is easy; and then it also some media storage with automatic nightly/weekly/monthly snapshots - the monthly ones hang around for a year, the others are cleaned up sooner. For those, I have to un-hide the snapshot folders, but then I can just copy-paste any deleted files that I want to restore.
It definitely takes some setup work, but I've been pretty happy overall.
That server is in my basement, my work laptop also has CrashPlan for off-site backups, but that's a business plan, so it won't be affected by this. I do need to figure out an off-site backup for the rest of it...
I have a mirrored 2x6TB setup that all of my computers back up to. It shows up as an Apple TimeMachine, so MacBook backup and restore is easy; and then it also some media storage with automatic nightly/weekly/monthly snapshots - the monthly ones hang around for a year, the others are cleaned up sooner. For those, I have to un-hide the snapshot folders, but then I can just copy-paste any deleted files that I want to restore.
It definitely takes some setup work, but I've been pretty happy overall.
That server is in my basement, my work laptop also has CrashPlan for off-site backups, but that's a business plan, so it won't be affected by this. I do need to figure out an off-site backup for the rest of it...