I created a couple of new pools (HHDs & SSDs).
After a little time (or after doing something else in TrueNAS) under each pool there was a new dataset called ‘iocage’, which I did not create. It was automatic, but I have no idea what caused them to be created. They each have the following child folders:
- download
- images
- jails
- log
- releases
- templates
Could it be have been triggered by installing certain plugins, even if they were temporary?