Hi All,

 

Unraid noob, apologies in advance.

I went to start my windows vm and got alert that there was no space left. Looking at previous alerts, it looks like my cache had finally fully filled up.

 

I realize now that I have been setting up my cache wrong and had everything set to Cache Prefer (cache as primary, array as secondary, Mover Array to Cache) causing it to completely fill up.

I've gone ahead and changed these settings for most of my shares (mover is now Cache to Array) and shutdown/ started my unraid pc and it is running a parity check. It is currently showing the below message under the docker tab. After the parity is complete, how can I get docker up and running?

sdchonitower-diagnostics-20240108-1136.zip

Free up some space on cache, then restart the array, post new diags if it still fails.

It won't let me move or delete files from the cache. updated log files attached.

sdchonitower-diagnostics-20240108-1258.zip

Pool is going read-only during the balance due to being completely full, you should avoid completely filling up a COW filesystem, like btrfs or zfs.

 

Jan  8 12:52:56 SDCHONITower kernel: BTRFS: error (device sdh1: state A) in __btrfs_free_extent:3075: errno=-28 No space left
Jan  8 12:52:56 SDCHONITower kernel: BTRFS info (device sdh1: state EA): forced readonly

 

You can try canceling the balance to see if it then allows you to move some data, stop the array and type:

mkdir /x
mount -t btrfs -o skip_balance /dev/sdh1 /x
btrfs balance cancel /x
umount /x

 

Now restart array and post new diags

 

 

 

That appears to have fixed it, TY!
I have set min free space on the cache to 5.2gb so that this doesn't happen in the future as well.

sdchonitower-diagnostics-20240108-1325.zip