在FreeNAS中replace硬盘

我得到一个消息,说我的硬盘驱动器退化,即时通讯试图找出如何检查它是哪个驱动器。 我做了zpool状态,我得到了这个

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, 

然后当我投入

  [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 

我找不到符合标签状态的硬盘。 我如何知道哪个硬盘坏了? 谢谢