> One more data point about BTRFS, is that it doesn't support parity-stripe based redundancy models (raid5/6, raidz{1..n}, etc), which makes it less interesting

> One more data point about BTRFS, is that it doesn't support parity-stripe based redundancy models (raid5/6, raidz{1..n}, etc), which makes it less interesting for a lot of people. It does however support raid1 on multiple drives, and raid1c3 and raid1c4 for increased redundancy. With Btrfs raid1, you can pool I.e 4 drives, meaning it will store 2 copies of each file on different devices. It’s not your traditional raid1. With raid1c3 it will store 3 copies of each file, and raid1c4 stores 4 copies. So while technically not raid5, a 3+ drive Btrfs raid1 pool will provide almost the same redundancy. Think of it more like raid10.