Import failing with ZFS pool that has both disks and files

Question

I recently ran out of space on my ZFS pool, and since I needed a quick solution for more space and didn't plan to use the pool for much longer, I just added a file as a new device (vdev?) to my pool of three disks to add some more space.

Unfortunately, after a recent reboot, I cannot import the pool. zpool import fails due to I/O errors, but zpool import -F complains of a missing device, and zdb -e <pool name> shows the file member of the pool to be missing. Specifically, it shows the pool has 4 children, and 3 have type 'disk' while the fourth shows: children[3]: type: 'missing'

The file is in the same location with the same path that it has always had. Any ideas how I can fix the configuration and get this pool to import?

Answer 1

Wow, I figured it out 5 minutes after posting but hours after working on this with much frustration. I needed to specify the -d option in zpool import for both the path to the file AND to /dev/disk/by-id.