ZFS Pool Disappears After Reboot!

[uviteru]

As the title says, I have created a ZFS pool with 4 8TB disks. I am able to create directories and transfer files and bind mount it to a container, but whenever I perform a reboot on the host, the ZFS pool disappears! The drives still show as being partitioned and 'unavailable', but there is no ZFS pool listed, and

zpool status

returns "no pools available".

Does anyone have any idea what is going on? It is scary that I could lose 20TB of data just because my storage pool decides to vanish!

Thank you.

 

[Chris]

Hi,
is the zfs-import-cache.service enabled and running? `systemctl enable zfs-import-cache.service`

 

[uviteru]

Hi,
is the zfs-import-cache.service enabled and running? `systemctl enable zfs-import-cache.service`

Thank you so much! I thought it must be something simple. Why would the service not be running after a restart? Do I have to manually start it every time?

 

[Chris]

No, if it is set enabled, systemd will take care of starting the service for you. See `man systemctl` for more infos about howto manage services with systemd

 

[uviteru]

No, if it is set enabled, systemd will take care of starting the service for you. See `man systemctl` for more infos about howto manage services with systemd

After a few more reboots, the command you gave me does not seem to work anymore... I run

systemctl enable zfs-import-cache.service

and nothing happens, and when I type

zpool status

I get a message that says there are no pools available. What else do I need to do? Why did it stop working?

 

[uviteru]

No, if it is set enabled, systemd will take care of starting the service for you. See `man systemctl` for more infos about howto manage services with systemd

Also, when I check the status I see this--do I really need to destroy my pool? I have 10TB of data in there......

 

[uviteru]

So after some searching, simply running

zpool import media

allowed me to see the pool again! Why does it keep disappearing when I reboot? It doesn't seem like I should have to run any special commands when I boot up to get this to appear.

 

[Stoiko Ivanov]

probably the zpool.cache file in the intiramfs is outdated - on a hunch - try running `update-initramfs -u -k all` and see if this fixes the issue

 

[uviteru]

probably the zpool.cache file in the intiramfs is outdated - on a hunch - try running `update-initramfs -u -k all` and see if this fixes the issue

I ran the command and will let you know how it works out. I won't be able to bring the machine down for a few days probably. Thank you for your reply.