ZFS pool dissapeared, but appears fine but wont now Auto Import.

[Dan Walton]

A few days ago I lost my pool (4x2Tb WD disks (1x as spare))
at first I thought maybe a drive had gone down or hardware fault. All disks were showing up in the gui. I un-attached and tried to Auto Import which came back as 'error: The volume "JNasRaidZ" failed to import, for futher details check pool status'
I tried zpool import -f and it came up with an error which prompted me to run zpool import -F.
That ran and said I would loose two minutes of data but finished and seemed ok. (the GUi shell was small so I lost the details of what it said)
I tried the Auto Import but it fails to see the pool 'JNasRaidZ'.
I ran zpool status:

pool: JNasRaidZ
state: ONLINE
scan: scrub repaired 0 in 2h35m with 0 errors on Sun Nov 23 02:35:06 2014
config:

NAME STATE READ WRITE CKS
UM
JNasRaidZ ONLINE 0 0
0
raidz1-0 ONLINE 0 0
0
gptid/0c9a870d-37bd-11e4-afae-3cd92b0c215f ONLINE 0 0
0
gptid/0d5db502-37bd-11e4-afae-3cd92b0c215f ONLINE 0 0
0
gptid/0e22c80f-37bd-11e4-afae-3cd92b0c215f ONLINE 0 0
0
spares
gptid/0f02d997-37bd-11e4-afae-3cd92b0c215f AVAIL

errors: No known data errors

But still nothing? any ideas what to do next? The gui runs fine, the drives appear fine. It just won't import them?
Build FreeNAS-9.2.1.7-RELEASE-x64 (fdbe9a0)
Platform AMD Turion(tm) II Neo N40L Dual-Core Processor
Memory 8042MB

 

[cyberjock]

It won't import because that zpool output shows the pool is online. Reboot your box and try to auto-import again.

And do yourself a favor and get rid of that RAIDZ1. I'd go with RAIDZ2 and no hot-spare over RAIDZ1 even in my sleep.