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.

@prologic@twtxt.net Planning it ahead of time is all well and good if you have the money to buy 6 or 8 hard drives at once. I really don’t, and I want to mirror the whole thing offsite anyway. Mergerfs will let me do it now, and I’ll buy a drive each for SnapRAID in short order.

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