ZFS pool failed to import on boot but showing up OK?


New Member
Oct 17, 2022
Fresh test machine with PVE 8.0.3
Zpool name = zfs1, data pool, not the boot pool.

While Proxomox was booting up, it got a few seconds delay and showed a warning message.
[FAILED] Failed to start zfs-import@zfs1.service - Import ZFS pool zfs1.
But I can see the zfs1 pool in the Storage and it can be used as usual. So detach the drive and destroy the Zpool, nothing changes, fails during boot up, and works just normally.

In CLI, it looks normal.
zpool status
pool: zfs1
state: ONLINE

zfs1 ONLINE 0 0 0

errors: No known data errors

systemctl status zfs-import@zfs1
× zfs-import@zfs1.service - Import ZFS pool zfs1
Loaded: loaded (/lib/systemd/system/zfs-import@.service; enabled; preset: enabled)
Active: failed (Result: exit-code) since Wed 2023-09-20 17:28:26 NZST; 43s ago
Docs: man:zpool(8)
Process: 517 ExecStart=/sbin/zpool import -N -d /dev/disk/by-id -o cachefile=none zfs1 (code=exited, status=1/FAI>
Main PID: 517 (code=exited, status=1/FAILURE)
CPU: 14ms

Sep 20 17:28:25 pve2 systemd[1]: Starting zfs-import@zfs1.service - Import ZFS pool zfs1...
Sep 20 17:28:26 pve2 zpool[517]: cannot import 'zfs1': no such pool available
Sep 20 17:28:26 pve2 systemd[1]: zfs-import@zfs1.service: Main process exited, code=exited, status=1/FAILURE
Sep 20 17:28:26 pve2 systemd[1]: zfs-import@zfs1.service: Failed with result 'exit-code'.
Sep 20 17:28:26 pve2 systemd[1]: Failed to start zfs-import@zfs1.service - Import ZFS pool zfs1.

But it shows up OK in zpool status?

I end up disabling it by:
systemctl disable zfs-import@zfs1.service

I'm not sure if the trick above is fooling myself or a bug in the latest v.8.0.3, please help.
The unterlying cause can be "too fast booting", so that the devices for the pool are not present or you have a not updated cache file. Maybe check both.
It just a warning message during boot. I do have cache file updated. Try rebuild the zpool, but still the same. So I end up disable the zpool import, somehow the zpool is still working and the warning message is gone, weird......


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