How do I recover a crashed pool?

[Александр Поволоцкий]

Hello

I've experienced a zpool crash after hard reset

   pool: fast
  state: FAULTED
status: The pool metadata is corrupted and the pool cannot be opened.
action: Destroy and re-create the pool from
         a backup source.
    see: http://illumos.org/msg/ZFS-8000-72
   scan: scrub repaired 0 in 0 days 00:07:28 with 0 errors on Fri Mar  6 
04:27:10 2020
config:

         NAME        STATE     READ WRITE CKSUM
         fast        FAULTED      0     0     1
           mirror-0  FAULTED      0     0     6
             ada0p2  ONLINE       0     0     6
             ada1p2  ONLINE       0     0     6

unfortunately, I've exported pool before attempt to zpool clear -F

Is there any way to attempt to import pool readonly to save data from 
it? I recall a case when advice from here helped me to recover all data 
from a pool with both devices broken...

--

Alex


-- 
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