Substituindo um HDD no FreeNAS

Question

Recebi uma mensagem dizendo que um dos meus discos rígidos estava degradado e tentando descobrir como verificar qual é a unidade. Eu fiz zpool status e eu tenho esse

 zpool status
  pool: BiggyD
 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: http://illumos.org/msg/ZFS-8000-2Q
  scan: scrub repaired 0 in 1h20m with 0 errors on Fri May 29 01:20:40 2015
config:

        NAME                                            STATE     READ WRITE CKSUM
        BiggyD                                          DEGRADED     0     0     0
          raidz2-0                                      DEGRADED     0     0     0
            gptid/16802538-cc4a-11e4-b923-f46d04005fad  ONLINE       0     0     0
            gptid/171cea13-cc4a-11e4-b923-f46d04005fad  ONLINE       0     0     0
            gptid/178aa7a7-cc4a-11e4-b923-f46d04005fad  ONLINE       0     0     0
            gptid/17ee86d6-cc4a-11e4-b923-f46d04005fad  ONLINE       0     0     0
            gptid/18a4d3c1-cc4a-11e4-b923-f46d04005fad  ONLINE       0     0     0
            gptid/2b25eceb-cc4a-11e4-b923-f46d04005fad  ONLINE       0     0     0
            9910768793305845771                         UNAVAIL      0     0     0  was /dev/gptid/2baa7b71-cc4a-11e4-b923-f46d04005fad,

quando eu coloco

  [root@freenas] /tmp# glabel status
                                      Name  Status  Components
gptid/3154862c-cc57-11e4-8a32-f46d04005fad     N/A  da0p1
gptid/315e5391-cc57-11e4-8a32-f46d04005fad     N/A  da0p2
gptid/16802538-cc4a-11e4-b923-f46d04005fad     N/A  ada0p2
gptid/171cea13-cc4a-11e4-b923-f46d04005fad     N/A  ada1p2
gptid/716df18a-cc4a-11e4-b923-f46d04005fad     N/A  ada2p2
gptid/8c34eff6-cc4a-11e4-b923-f46d04005fad     N/A  ada3p2
gptid/533b27e1-cc4a-11e4-b923-f46d04005fad     N/A  ada4p2
gptid/178aa7a7-cc4a-11e4-b923-f46d04005fad     N/A  ada5p2
gptid/17ee86d6-cc4a-11e4-b923-f46d04005fad     N/A  ada6p2
gptid/18a4d3c1-cc4a-11e4-b923-f46d04005fad     N/A  ada7p2
gptid/2b25eceb-cc4a-11e4-b923-f46d04005fad     N/A  ada8p2

Eu não consigo encontrar o disco rígido correspondente ao status glabel. Como faço para descobrir qual disco rígido é ruim? Obrigado