trying to figure out a reliable way to identify drives to make sure I pull the 
right drive when there is a failure.   These will be smaller installations 
(<16 drives)

I am pretty sure the wwn name on a sas device is preassigned like a MAC 
address, but I just want to make sure.   Is there any scenario where the wwn 

so ideally, as long as I label the disk, with the correct wwn, then I should 
be able to identify it as failed, and be able to pull it?

      NAME                       STATE     READ WRITE CKSUM
        tank                       ONLINE       0     0     0
          mirror-0                 ONLINE       0     0     0
            c2t5000C50033F5BD7Fd0  ONLINE       0     0     0
            c2t5000C50033F5BE3Bd0  ONLINE       0     0     0
          mirror-1                 ONLINE       0     0     0
            c2t5000C50033F5BF9Fd0  ONLINE       0     0     0
            c2t5000C50033F5BFBBd0  ONLINE       0     0     0
          c2t5000C50033F5D607d0    AVAIL   


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