How can you tell which disc is degraded?

[gait]

I have a NAS (8.2.0) and have a warning showing this:

scrub: none requested
config:

NAME STATE READ WRITE CKSUM
z01 DEGRADED 0 0 0
raidz1 ONLINE 0 0 0
ada6p2 ONLINE 0 0 0
ada5p2 ONLINE 0 0 0
ada4p2 ONLINE 0 0 0
ada3p2 ONLINE 0 0 0
ada2p2 ONLINE 0 0 0
ada1p2 ONLINE 0 0 0
ada8p2 ONLINE 0 0 0
ada7p2 ONLINE 0 0 13
logs
mirror DEGRADED 0 0 0
ada9p2 UNAVAIL 0 0 0
cannot open
ada10p2 ONLINE 0 0 0
cache
gptid/4a349de0-31b8-11e1-9499-20cf30528b2a ONLINE 0 0 0

errors: No known data errors

The problem I have is I'm not sure which disc to replace because when I look at the GUI I get the following:

ada010486539340009990010Member of z01 log mirrorAutoAlways OnDisabledDisabledtrue

ada1S246JD2Z925286Member of z01 raidzAutoAlways OnDisabledDisabledtrue

ada1010436505350009990077Member of z01 raidzAutoAlways OnDisabledDisabledtrue

ada2S246JD2Z925288Member of z01 log mirrorAutoAlways OnDisabledDisabledtrue

ada3S246JD2Z925290Member of z01 raidzAutoAlways OnDisabledDisabledtrue

ada4S246JD2Z925284Member of z01 raidzAutoAlways OnDisabledDisabledtrue

ada5S246JD2Z925287Member of z01 raidzAutoAlways OnDisabledDisabledtrue

ada6S246JD2Z925289Member of z01 raidzAutoAlways OnDisabledDisabledtrue

ada7S246JD2Z925283Member of z01 raidzAutoAlways OnDisabledDisabledtrue

ada8S246JD2Z925285Member of z01 cacheAutoAlways OnDisabledDisabledtrue

I can see that it is one of the mirrored log file discs called ada9p2 when I go into the shell and do a zpool status -v, but this disc does not exist when I use the GUI and look in View Discs as seen above?????

 

[cyberjock]

Match your disk adaXX to disk serial numbers and figure out which one is missing. smartctl -a /dev/daXX | grep Serial is your friend!

 

[cyberjock]

Oh, and you are a total badass with 8 disks in a RAIDZ1. And it looks like you might already have a bad disk!