ZFS pool failure after upgrading the features

[wrobelda]

I belive I am seeing a similar issue with Proxmox 9 and my RAID1 setup to the one reported upstream: https://github.com/openzfs/zfs/issues/17090

I was running flawless until about a week ago, when I updated the pool to add all current features.

I am now unable to import the pool:

root@proxmox:~# zpool import storage -f
cannot import 'storage': insufficient replicas
Destroy and re-create the pool from
a backup source.

When imported in R/O mode, it shows:

root@proxmox:~# zpool status storage -v
pool: storage
state: ONLINE
status: One or more devices has experienced an error resulting in data
corruption. Applications may be affected.
action: Restore the file in question if possible. Otherwise restore the
entire pool from backup.
see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-8A
scan: resilvered 6.57M in 00:00:01 with 0 errors on Mon Sep 15 14:11:00 2025
config:

NAME STATE READ WRITE CKSUM
storage ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
ST16000NM001G-2KK103_ZL2DG3AF_crypt ONLINE 0 0 0
ST16000NM001G-2KK103_ZL2DJKSN_crypt ONLINE 0 0 0

errors: Permanent errors have been detected in the following files:

<metadata>:<0x0>

Recovery fails as well:

root@proxmox:~# zpool import -fF storage
cannot import 'storage': insufficient replicas
Destroy and re-create the pool from
a backup source.

Disks are sound, they're new with intact SMART. This really upsetting, to be honest.

 

[waltar]

The remaining question is who or what corrupt the zfs metadata on both disks if it's unable to recover from mirror if it wasn't zfs itself ?