Panic loop on ZFS with 9.1-RELEASE

http://lists.freebsd.org/pipermail/freebsd-fs/2013-March/016704.html

I still haven't succeeded in importing the pool readwrite, but I have
succeeded in importing it readonly.

This has been confirmed as a bug by the ZFS illumos ML people.
Description :
You can't import readonly a pool that has cache devices, because the
import will try to send write IOs to auxiliary vdevs, and hit an
assert() call, thus provoking a panic.

Workaround :
Destroy cache devices before zpool import -o readonly=on -f <pool>.

И еще полезные команды

zdb

zdb -AAA -e -mm prana 1 33

-AAA - игнорировать ошибки

-e - использовать неимпортированый пул

prana - пул

-mm и 1 33 в мане нет, возможно это под соляру пример был