Need to identify disk in zpool ... how?

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.

To know more:

• FreeBSD GEOM
• man glabel
• man camcontrol
• man smartcl

#!/bin/sh
echo
echo $(basename $0) - Mounted Drives on $(hostname)
cat /etc/version
date
echo
diskinfo="$(glabel status | tail -n +2 | awk '{split($3,a,"p"); print a[1],$1}')"
echo    "+========+==========================+==================+============================================+"
echo "| Device |     DISK DESCRIPTION     |  SERIAL  NUMBER  |                   GPTID                    |"
echo "+========+==========================+==================+============================================+"

for d in $(echo "$diskinfo" | cut -d" " -f 1)
do
   diskinf=$(diskinfo -v $d | grep '# Disk ')
   diskdescription=$(echo "$diskinf" | grep '# Disk desc' | cut -d# -f 1 | xargs)
   diskserialno=$(echo "$diskinf" | grep '# Disk ident' | cut -d# -f 1 | xargs)
   diskgptid=$(echo "$diskinfo" | grep "^$d" | cut -d" " -f 2)
   printf "| %-6s | %-24s | %-16s | %-42s |\n" "$d" "$diskdescription"     "$diskserialno" "$diskgptid"
   echo "+--------+--------------------------+------------------+--------------------------------------------+"
done

source