ZFS recovery after power failure

[James R. Van Artsdalen]

On 12/18/2010 2:21 AM, Sergey Gavrilov wrote:
> Hi all!
> After hard power off pool's faulted.
> When I'm trying zpool import pool2 I've got:
> cannot import 'pool2': I/O error

I do know how to recover pools.  But I do want to know how  it failed.

Please post the output of "uname -a" so we know what system and version
of FreeBSD was used.

Also, what of hard disks are these and how are they attached to the system?