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7 reasons I chose Btrfs over ZFS for my home NAS
(www.xda-developers.com)
Hosting your own services. Preferably at home and on low-power or shared hardware.
Also check out:
Yep, it has for a year now, and it's surprisingly easy to do.
Can confirm. I upgraded from a 6-bay to an 8-bay enclosure and added two more drives without issue.