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Subject: Re: ZFS i/o error in recent 12.0
To: KIRIYAMA Kazuhiko <kiri@kx.openedu.org>
References: <201803192300.w2JN04fx007127@kx.openedu.org>
Cc: freebsd-current@freebsd.org
From: Thomas Steen Rasmussen <thomas@gibfest.dk>
Message-ID: <2deff4f0-6b97-7ccd-2763-8c812e871c78@gibfest.dk>
Date: Wed, 21 Mar 2018 08:01:24 +0100
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On 03/20/2018 12:00 AM, KIRIYAMA Kazuhiko wrote:
> Hi,
>
> I've been encountered suddenly death in ZFS full volume
> machine(r330434) about 10 days after installation[1]:
>
> ZFS: i/o error - all block copies unavailable
> ZFS: can't read MOS of pool zroot
> gptzfsboot: failed to mount default pool zroot
>
> FreeBSD/x86 boot
> ZFS: i/o error - all block copies unavailable
> ZFS: can't find dataset u
> Default: zroot/<0x0>:
> boot: 

Has this pool had new vdevs addded to it since the server was installed?
What does a "zpool status" look like when the pool is imported?

/Thomas