Solved raidz1 no longer booting

[circus78]

Hi, I am using FreeBSD 13.0-RELEASE.
This morning I suffered a power outage. I tried to reboot my server and I saw this:

ZFS: i/o error - all block copies unavailable
ZFS: can't find dataset u
ZFS: cant' open root filesystem
gptzfsboot: failed to mount default pool zroot

FreeBSD/x86 boot
Default: zroot:
boot:

I tried with bootonly FreeBSD 13.0-RELEASE iso, and with zpool import I get this:

# zpool import
ZFS filesystem version 5
ZFS storage pool version: features support (5000)
  pool: zroot
  id: 1787873473175873642332
  state: FAULTED
  status: One or more devices contains faulted data.
 
action: The pool cannot be imported due to damaged devices or data.
        The pool may be active on another system, but can be imported using
        the '-f' flag.
see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-8A

config:
       zroot               FAULTED  corrupted data
         mirror-0        DEGRARED
           mfid0p3      ONLINE
           mfid1p3      FAULTED corrupted data

what can I try next?
Thank you very much

 

[SirDice]

That's a mirror, not RAID-Z. Try physically removing that failed disk, the mirror should be fine to boot from the other disk.

 

[mer]

mfid isn't that behind a controller of some kind? Have you checked the physical cables, tried unplugging the device that corresponds to mfid1?

 

[SirDice]

mfid isn't that behind a controller of some kind?

LSI MegaRAID; mfi(4) to be exact.

 

[mer]

Thank you; so it could be some kind of hardware failure.

 

[circus78]

That's a mirror, not RAID-Z. Try physically removing that failed disk, the mirror should be fine to boot from the other disk.

Thank you SirDice, you were absolutely right. I was able to boot with just one hard disk.