Freebsd – Need to identify disk in zpool … how

freebsdtruenaszfszpool

I need to replace a bad disk in a zpool on FreeNAS.

zpool status shows

gptid/5fe33556-3ff2-11e2-9437-f46d049aaeca  UNAVAIL      0     0     0  cannot open

How do I find the serial # of that disk?

More:

glabel status gives:

                                      Name  Status  Components
                             ufs/FreeNASs3     N/A  da0s3
                             ufs/FreeNASs4     N/A  da0s4
                    ufsid/4fa405ab96518680     N/A  da0s1a
                            ufs/FreeNASs1a     N/A  da0s1a
                            ufs/FreeNASs2a     N/A  da0s2a
gptid/5f3c0517-3ff2-11e2-9437-f46d049aaeca     N/A  ada1p2
gptid/60570005-3ff2-11e2-9437-f46d049aaeca     N/A  ada3p2
gptid/60ebeaa5-3ff2-11e2-9437-f46d049aaeca     N/A  ada4p2
gptid/a767b8ef-1c95-11e2-af4c-f46d049aaeca     N/A  ada6p2
gptid/61925b86-3ff2-11e2-9437-f46d049aaeca     N/A  ada9p2
gptid/4599731b-8f15-11e1-a14c-f46d049aaeca     N/A  ada10p2

I don't see gptid/5fe33556 in there.

And camcontrol devlist gives:

<Hitachi HDS723030BLE640 MX6OAAB0>  at scbus0 target 0 lun 0 (pass0,ada0)
<ST3000VX000-9YW166 CV13>          at scbus4 target 0 lun 0 (pass1,ada1)
<ST3000VX000-9YW166 CV13>          at scbus6 target 0 lun 0 (pass3,ada3)
<Hitachi HDS723030BLE640 MX6OAAB0>  at scbus7 target 0 lun 0 (pass4,ada4)
<ST3000DM001-9YN166 CC4C>          at scbus8 target 0 lun 0 (pass5,ada5)
<WDC WD30EZRX-00MMMB0 80.00A80>    at scbus8 target 1 lun 0 (pass6,ada6)
<WDC WD30EZRX-00MMMB0 80.00A80>    at scbus9 target 0 lun 0 (pass7,ada7)
<ST3000DM001-9YN166 CC4C>          at scbus9 target 1 lun 0 (pass8,ada8)
<Hitachi HDS723030BLE640 MX6OAAB0>  at scbus10 target 0 lun 0 (pass9,ada9)
<Hitachi HDS5C3030ALA630 MEAOA580>  at scbus11 target 0 lun 0 (pass10,ada10)
< USB Flash Memory 1.00>           at scbus12 target 0 lun 0 (pass11,da0)

Does that mean that ada2 is the bad disk?

UPDATE:

OK, I'm pretty sure that ada2 is the bad disk. And I have my notes, so I know which disk that is.

But it appears that I left a spare in there – ada0 – last time I was in the box.
Can I replace ada2 with ada0 remotely? Until someone gets to the office?

Best Answer

To get a disk serial requires that it is running and available:

  • camcontrol identify <device> |grep ^serial (this might be (S)ATA specific)
  • smartcl -i <device> |grep ^Serial
  • reading the disk label once removed from the enclosure

In your case, I think the 3rd solution is the only available. So, Assuming you just want first identify the disk:

Try first a glabel status (as your drive is not shown as DOWN or REMOVED):

$ glabel status
gptid/c7868819-ddc1-11e2-8c3e-00138f3fd9c7     N/A  da0p1
gptid/c96da0bc-ddc1-11e2-8c3e-00138f3fd9c7     N/A  da2p1

  1. You can see your partition with glabel status

    Then you can easily identify the disk device name (ex: da0 for the gptid/c7868819-ddc1-11e2-8c3e-00138f3fd9c7 partition).

    You can have a look at your system starting log from /var/log/messages (aka "dmesg"):

    $ dmesg | grep ^da0
da0 at mps0 bus 0 scbus0 target 0 lun 0
da0: <ATA ST3000DM001-1CH1 CC26> Fixed Direct Access SCSI-6 device
da0: 600.000MB/s transfers
da0: Command Queueing enabled
da0: 2861588MB (5860533168 512 byte sectors: 255H 63S/T 364801C)

  2. You cannot see your partition with glabel status

    $ camcontrol devlist
<ATA ST3000DM001-1CH1 CC26>        at scbus0 target 0 lun 0 (pass0,da0)
<ATA ST3000DM001-1CH1 CC26>        at scbus0 target 4 lun 0 (pass2,da2)

    From there, you can easily spot which one is missing (da1 in this case), then have a look at dmesg to identify that disk.

So, no real solution here. I just hope that it help you see things a bit more clear.

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