So the shares "system", "appdata",... which are used by the VM's, docker and system are all by default on the array. I created a ZFS pool which is way bigger and redundant, and I want to use that to store those shares.

So I went into the UI and changed this to the correct storage location:

secondary is set to none

 

Next I issued this command to copy the share to the correct storage location: 

 

cp -avr /mnt/disk1/appdata /mnt/data/appdata

disk1 is my array (default location), data is my pool (desired location).

 

Then remove the data from the disk1 (array):

 

rm -rf /mnt/disk1/appdata

 

Unfortunately this gives:

root@Tower:~# rm -rf /mnt/disk1/appdata
rm: cannot remove '/mnt/disk1/appdata': Device or resource busy

 

 

I checked if any files are open/used by using:

 

lsof +D /mnt/disk1/appdata

 

But it shows none. 

At this point I'm stuck, can anybody throw a bone? Many many thanks! 

Edited January 21, 20242 yr by D0wk1ng
clarification

Solution is to unmount it after copying the files:

 

umount /mnt/disk1/appdata