From owner-freebsd-hackers@freebsd.org  Sat Apr 28 15:42:47 2018
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To: FreeBSD Hackers <freebsd-hackers@freebsd.org>,
 FreeBSD Filesystems <freebsd-fs@freebsd.org>
From: Willem Jan Withagen <wjw@digiware.nl>
Subject: Getting ZFS pools back.
Message-ID: <5f836c79-b379-f066-689b-1645e393c5e9@digiware.nl>
Date: Sat, 28 Apr 2018 17:42:41 +0200
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Hi,

I had this server crash on me, and first it just complained about not 
being able to boot because it could not find the guid.

Now I cannot even import the pools any longer.
Althoug zdb -l /dev/ada0 still gives me data that indicates that there 
should be a ZFS pool on that partition.

Any suggestions on how to get the pools/data back online?

Help would be highly appreciated, since restoring it from backups is 
going to quite some work.

Thanx,
--WjW