Hi,

 

I needed help. My Unraid is down after reboot.

What happened before was I removed one of the HDD from my HDD pool.

 

The drives assignment are:

* 2 NVMEs using ZFS, cache. Mainly for dockers.

* 6 SSDs, ZFS pool.

* 7 HDDs, BTRFS pool --> this is the one where i removed one drive from the pool assignment.

 

No array setup.

 

Now after reboot, I can't see get the web GUI to show up.

I can still SSH to the server, but web GUI is still down even after a couple reboots and waiting 20 minutes.

 

I somehow broke the my server. How can I recover?

 

Attached is the diagnostic file.

 

Note that I have USB backup from v7.0.1, but (foolishly) I didn't make backup of v7.1.1 prior to this.

There aren't any hardware changes between v7.0.1 and v.7.1.1, so I think I can use the backup.

Can I restore the backup if it is faster for me to recover?

 

Thank you.

 

/han

tower-diagnostics-20250511-1926.zip

There's a problem with the HDD pool cfg, edit /boot/config/pools/hdd.cfg and change diskFsWidth="7" to "6", then reboot, that should do it, but if it doesn't, remove and reimport the pool:

 

on main click on the first device for that pool and then "remove pool"
back on main, create a new pool with the same name and number of slots
assign the pool device(s), leave the filesystem set to auto
start the array to import the pool

4 minutes ago, JorgeB said:

There's a problem with the HDD pool cfg, edit /boot/config/pools/hdd.cfg and change diskFsWidth="7" to "6", then reboot, that should do it, but if it doesn't, remove and reimport the pool:

 

on main click on the first device for that pool and then "remove pool"
back on main, create a new pool with the same name and number of slots
assign the pool device(s), leave the filesystem set to auto
start the array to import the pool

 

YES, that did the the fix. 

The web GUI is up now and everything started as per expected.

Thank you very much for a very quick solution.

 

Now I remember I tried to reduce the drive count for the HDD pool, but somehow I couldn't set it to 6.

 

/han

On 5/11/2025 at 5:59 AM, JorgeB said:

There's a problem with the HDD pool cfg, edit /boot/config/pools/hdd.cfg and change diskFsWidth="7" to "6", then reboot, that should do it, but if it doesn't, remove and reimport the pool:

 

on main click on the first device for that pool and then "remove pool"
back on main, create a new pool with the same name and number of slots
assign the pool device(s), leave the filesystem set to auto
start the array to import the pool

Thank you! I spent the last 4 hours trying to find a solution for this same issue, and this is exactly what I needed! I had removed a drive from my cache pool earlier and then everything went downhill. I am hoping I didn't lose anything in the pool, but I had 6 drives in there, so I think I should be ok. Thank you again!!!

1 hour ago, jpriganc said:

oping I didn't lose anything in the pool

Pool should be fine, and if you are on 7.0.x, update to avoid this issue.