gpart: => 40 468862048 ada0 GPT (224G) 40 1024 1 freebsd-boot [bootme] (512K) 1064 984 - free - (492K) 2048 4194304 2 freebsd-swap (2.0G) 4196352 464664576 3 freebsd-zfs (222G) 468860928 1160 - free - (580K) => 40 488397088 ada1 GPT (233G) 40 1024 1 freebsd-boot [bootme] (512K) 1064 4194304 2 freebsd-zfs (2.0G) 4195368 4194304 3 freebsd-swap (2.0G) 8389672 460472416 4 freebsd-zfs (220G) 468862088 19535040 - free - (9.3G) zpool status: pool: bootpool state: DEGRADED status: One or more devices could not be opened. Sufficient replicas exist for the pool to continue functioning in a degraded state. action: Attach the missing device and online it using 'zpool online'. see: https://zfsonlinux.org/msg/ZFS-8000-2Q scan: scrub repaired 0B in 00:00:06 with 0 errors on Wed Aug 19 03:15:04 2020 config: NAME STATE READ WRITE CKSUM bootpool DEGRADED 0 0 0 mirror-0 DEGRADED 0 0 0 11806306016090771583 UNAVAIL 0 0 0 was /dev/ada0p2 ada1p2 ONLINE 0 0 0 errors: No known data errors pool: zroot state: ONLINE status: Some supported features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(5) for details. scan: scrub repaired 384K in 00:20:56 with 0 errors on Sat Aug 8 04:02:37 2020 config: NAME STATE READ WRITE CKSUM zroot ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 ada0p3.eli ONLINE 0 0 0 ada1p4.eli ONLINE 0 0 0 errors: No known data errors