Rebuilds on ZFS and BTRFS are quite reasonable because most of the time only the data itself is rebuild, not the entire drive as with old-fashioned solutions.

Rebuilds on ZFS and BTRFS are quite reasonable because most of the time only the data itself is rebuild, not the entire drive as with old-fashioned solutions. Rebuilds depend on drive size, not array size. Tripple-parity as part of ZFS allows you to create even larger VDEVS while keeping the risks manageable. Interesting for low-performance archiving solutions.