When clicking on shell on one of my nodes I am getting the error 'Error 500: closing file '/var/tmp/pve-reserved-ports.tmp.1312' failed - No space left on device' and it doesn't open the shell.
I can see that it is /dev/mapper/pve-root that is full but I have no idea why it is full or how to clear space, I've followed various instructions I've found but it complains that it doesn't have space to complete some of the commands.

Any help gratefully appreciated
I can see that it is /dev/mapper/pve-root that is full but I have no idea why it is full or how to clear space, I've followed various instructions I've found but it complains that it doesn't have space to complete some of the commands.

Any help gratefully appreciated
