Hi Unraid community,

 

My Unraid since for a few weeks now has not been able to mount disks and freeze the whole Unraid; can't even reboot without hard resets. I have a feeling it's my cache pool that's corrupted but I have no clue in trying to repair it. I'm a newbie in this whole self-hosted NAS stuff; I was just a regular synology user in the past just trying to dip my feet in the self-hosted nas world hoping to get more performance and flexibility out of my box.

 

On the console it's showing these errors:

 

ProxRaid login: VERIFY3(size <= rt-›rt_space) failed (281442902003712 <= 7192387

584)

PANIC at range_tree.c:436:range_tree _remove_imp1()

 

I hope someone can help point me to the right direction and hope to not lose the data in there.

 

Thanks,

 

Andrew

 

BTW, I was trying to attach a diagnostic file as well but I just didn't know which file is needed to help troubleshoot this. 

Here's another screenshot that shows that the unraid keeps on "mounting" the disks but it just hangs there forever.

5 hours ago, unraidnewbie said:

I was trying to attach a diagnostic file as well but I just didn't know which file is needed to help troubleshoot this. 

Attach the complete zip.

zipped diagnostic file is attached. thank you

tower-diagnostics-20240630-0547.zip

Diags are before array start, but assuming cachepool is the problem one, try this, with the array stopped type:

 

zpool import -o readonly=on cachepool

 

If it works start the array, the pool will show unmountable in the GUI, but the data should be under /mnt/cachepool, if yes, backup and reformat.

 

 

the command worked, showing that pool is unmountable: unsupported or no file system. Started the array then used midnight commander to browse the files and found them under/mnt/disks/cachepool. The question is now how do I properly back the data up and restore it back? Attached screenshot shows all the folders that exist within the pool. You can ignore /domains folder. I don't really have anything set up right now. I was just messing around trying to get Wordpress installed for kicks.

 

Thanks-Andrew

Edited July 2, 20242 yr by unraidnewbie
added additional information about the post

Can I just copy the whole pool content to another pool and copy everything back ? And can you please tell me the possible reasons that this happened in the first place and how do I protect myself to not make it happen again in the future?

Edited July 2, 20242 yr by unraidnewbie
added an additional question from the previous post

1 hour ago, unraidnewbie said:

under/mnt/disks/cachepool.

Hmm, it should not be mounted here, unless it was used with UD before.

 

1 hour ago, unraidnewbie said:

Can I just copy the whole pool content to another pool and copy everything back ?

Yes.

 

1 hour ago, unraidnewbie said:

And can you please tell me the possible reasons that this happened in the first place and how do I protect myself to not make it happen again in the future?

Could be hardware related or a zfs problem/bug, would recommend running memtest, bad RAM is probably the number one reason for filesystem corruption with zfs and btrfs.

4 minutes ago, JorgeB said:

 

1 hour ago, unraidnewbie said:

under/mnt/disks/cachepool.

Hmm, it should not be mounted here, unless it was used with UD before.

 

I suspect this is the path within the Krusader container - not the path at the Unraid level.

It might have been my doing. I did so many hard resets and at some point i was left with all unassigned devices for all my pools except my array.  Then I started unassigning and reassigning the disk, also making a new pool with cachepool (originally just "cache) hoping that things could work themselves out and all I have to do is then redirect all the shares to the new pool. Nothing worked however, and it led me here to ask for help in the forum. I was so close to giving up, was about to format the drive, accept my loss and start from scratch again.

 

So thank you for your help. You are awesome. Thank you thank you thank you.