For those who love ZFS ...

# zpool status
  pool: pfSenseMirror
state: ONLINE
  scan: scrub in progress since Sun Dec 24 21:54:29 2017
252M scanned out of 620M at 84.1M/s, 0h0m to go
0 repaired, 40.70% done
config:

NAME STATE READ WRITE CKSUM
pfSenseMirror  ONLINE    0 0 0
  mirror-0  ONLINE    0 0 0
ada0p4  ONLINE    0 0 0
ada1p4  ONLINE    0 0 0

errors: No known data errors

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pfSense 2.4 ships with ZFS now!  Is anyone else running this?

I just installed it on my J1800 board with dual...

For those who love ZFS ...