[root@NAS] ~# zpool status
  pool: Mirror
 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(7) for details.
  scan: scrub repaired 0 in 0h25m with 0 errors on Sun Jan 10 03:25:14 2016
config:

        NAME                                            STATE     READ WRITE CKSUM
        Mirror                                          ONLINE       0     0     0
          mirror-0                                      ONLINE       0     0     0
            gptid/a2d3e098-56b9-11e4-8b94-d050992dfaae  ONLINE       0     0     0
            gptid/a33ebb69-56b9-11e4-8b94-d050992dfaae  ONLINE       0     0     0

errors: No known data errors

  pool: ZRaid
 state: DEGRADED
status: One or more devices is currently being resilvered.  The pool will
        continue to function, possibly in a degraded state.
action: Wait for the resilver to complete.
  scan: resilver in progress since Wed Feb 10 05:52:51 2016
        2.66T scanned out of 4.12T at 257M/s, 1h39m to go
        449G resilvered, 64.55% done
config:

        NAME                                            STATE     READ WRITE CKSUM
        ZRaid                                           DEGRADED     0     0  177K
          raidz2-0                                      DEGRADED     0     0  355K
            gptid/95250909-ac24-11e4-9ea7-d050992dfaae  DEGRADED     0     0     0  too many errors
            gptid/8d557876-cf95-11e5-bbfb-d050992dfaae  ONLINE       0     0     0  (resilvering)
            gptid/8cb3ef24-561b-11e4-8690-d050992dfaae  DEGRADED     0     0     0  too many errors
            gptid/8d6d2c43-561b-11e4-8690-d050992dfaae  DEGRADED     0     0     0  too many errors
            gptid/8e1fcf7f-561b-11e4-8690-d050992dfaae  DEGRADED     0     0     0  too many errors
            gptid/8eb6080e-561b-11e4-8690-d050992dfaae  DEGRADED     0     0     0  too many errors

errors: 603739 data errors, use '-v' for a list

  pool: freenas-boot
 state: ONLINE
  scan: none requested
config:

        NAME        STATE     READ WRITE CKSUM
        freenas-boot  ONLINE       0     0     0
          da0p2     ONLINE       0     0     0

errors: No known data errors