↳ In-reply-to » (#sdorpga) @prologic ZFS is fine but it's out-of-tree and extremely inflexible. If Btrfs RAID5/6 was reliable it would be fantastic. Add and remove drives at will, mix different sizes. I hear it's mostly okay as long as you mirror the metadata (RAID1), scrub frequently, and don't hammer it with too many random reads and writes. However, there are serious performance penalties when running scrubs on the full array and random reads and writes are the entire purpose of a filesystem.

To be honest I don’t find it all that inflexible.

When you consider that you’re limited by hardware anyway, you plan your ZFS array ahead of time like I did.

As the years go on and drives fail you eventually replaces all disks with slightly larger ones.