Remove backup jobs and all associated data

Hi dear BE forum,

I have some old backups jobs that were running on a specific device. I'd like to get rid of everything regarding the jobs: BE data, actual B2D files, the BE device...

I am not sure on how to do this properly, coul you guide me ?

My understanding is the following:

-remove the jobs

-in the device list move to the unused device, select all Media in it and move to 'Retired Media' set

-Still in the Device view, select all Media in the old device and delete

-right click on the Device and delete

Thank you for your help.