Hello,

Please help me, I can't access my unraid server. I can only access SSH. The server login into this but no webgui, no share, no docker.

tower-diagnostics-20260323-1340.zip

There's a problem with a pool, apparently the cache pool, rename /config/pools/cache.cfg to cache.bak, then reboot and post new diags.

7 minutes ago, JorgeB said:

There's a problem with a pool, apparently the cache pool, rename /config/pools/cache.cfg to cache.bak, then reboot and post new diags.

Done. Unraid starts and I can access webgui now. Array has started but docker and VM failed to start. No cache pool also in Main tab. What should I do next? The diagnostics attached here is the diagnostics creating during reboot. Should I post diagnostics after the Unraid has started and create on Tools > Diagnostics?

tower-diagnostics-20260323-1725.zip

Edited March 23Mar 23 by HHUBS

@JorgeB I created Cache pool of 2 devices but still cache 3 is there and "not installed". I want to remove Cache 3. How can I do it? I'm playing on it earlier, that's why my webgui got crashed. How can I remove it safely?

Edited March 23Mar 23 by HHUBS

Post new diags with the pool imported.

10 minutes ago, JorgeB said:

Post new diags with the pool imported.

Here it is.

hhubs-diagnostics-20260323-1830.zip

BTW, where did you find out that there is a problem on the cache pool on the diagnostics? I want to know too where can I find it.,

Edited March 23Mar 23 by HHUBS

@JorgeB Can I just do a restore on my USB flash drive because I can't remove cache 3 no matter what I do. I have backup from like 2 days ago. Is that an easier fix? If yes, how can I do it?

Edited March 23Mar 23 by HHUBS

with the array started, type:

btrfs balance start -dconvert=raid1 -mconvert=raid /mnt/cache

When that's done type

btrfs dev remove missing /mnt/cache

Then 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 2 slots

assign the pool devices, leave the filesystem set to auto

start the array to import the pool

1 minute ago, JorgeB said:

with the array started, type:

btrfs balance start -dconvert=raid1 -mconvert=raid /mnt/cache

When that's done type

btrfs dev remove missing /mnt/cache

Then 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 2 slots

assign the pool devices, leave the filesystem set to auto

start the array to import the pool

@JorgeB I typed it on the terminal and I got this error:

ERROR: unknown profile: raid

ERROR: invalid convert argument

This is the file system usage

Edited March 23Mar 23 by HHUBS

37 minutes ago, HHUBS said:

I typed it on the terminal and I got this error:

Sorry, both shoudl be raid1

37 minutes ago, HHUBS said:

btrfs balance start -dconvert=raid1 -mconvert=raid1 /mnt/cache

When that's done type

btrfs dev remove missing /mnt/cache

It says:

Is this ok?

Yep

1 hour ago, JorgeB said:

Yep

@JorgeB It got an error on the last part: 😭

.

Edited March 23Mar 23 by HHUBS

I missed that one of the devices is smaller, so there's no space to fully mirror the current data, you will need to move some data from the pool to the array or another pool, then rebalance again, use this, so it continues where it left off:

btrfs balance start -dconvert=raid1,soft -mconvert=raid1,soft /mnt/cache

12 minutes ago, JorgeB said:

I missed that one of the devices is smaller, so there's no space to fully mirror the current data, you will need to move some data from the pool to the array or another pool, then rebalance again, use this, so it continues where it left off:

btrfs balance start -dconvert=raid1,soft -mconvert=raid1,soft /mnt/cache

Can the move be done by the "mover" or should I use unbalance plugin? Also, can I start the docker or should I wait to fix this mess before starting docker?

Edited March 23Mar 23 by HHUBS

Should be able to use the mover, file manager, or any other way.

1 hour ago, JorgeB said:

Should be able to use the mover, file manager, or any other way.

When I try to use mover, it doesn't do anything. When I try unbalance plugin, I gain same storage like 10 GB but I need at least 80 GB to complete the btrfs conversion. Some of the files that I move has not gain me storage. Why is that? I don't know if I can make it to 80 gb of free storage.

Edited March 23Mar 23 by HHUBS

I never used unbalance, just use the File Manager, or Midnight Commander (mc on the console)