In what way? ZFS has been Free Software for many years now.
Ubuntu is going to make it easier than ever to use ZFS!
Thomas Taylor
Luis Clark
ZFS eats up RAM with deduplication enabled
Wyatt Fisher
I personally don't go below 8gb, since that's what it is fully tested against, and I've seen rare reports of people having issues going below 4gb (though these issues due to their OS not playing nice and could likely be resolved with some tuning). It's nice to know that it can go that low though.
To reiterate for those that don't know, the only time zfs NEEDS ram is when using deduplication.
Don't fucking use deduplication
It's off by default for a reason and if you aren't running an enterprise system you don't need it and it will only waste your resources and causes problems. Otherwise when running ZFS normally, it'll just make use of free ram for caching, but it doesn't NEED that ram. You can reduce how much ram it tries to cache with some tuning variables.
Likewise (as others have said) SSD L2ARC caches do NOT do what people think they do and only benefit specific use cases.
Hopeful the idea it needs ECC is also already thoroughly debunked. ECC is nice, but not needed any more than any other filesystem.
The only thing that's expensive about ZFS is stupidity and hard disks. And as it's happens, here's some 10TB $170 easystores: slickdeals.net
My first ZFS/samba NAS was literally pic related for $50 and a bunch of spare parts/thrift store junk. The most expensive parts were the disks and a decent PSU. Which reminds me, you can cheap out on a lot, but don't cheap out on the PSU.
t. paranoid datahoarder with 24TB NAS + backups.
Justin Lewis
ZFS > XFS > ext4 > ReiserFS >= Reiser4 > btrfs > JFS > UFS
Kayden Foster
t. garage tech enthusiast
Anthony Morris
I don't see any FAT32 in there.