Hello ApeSqueeze,
Thank you for reaching out to the Commvault Community!
The first document being posted below is the “Impact of the Media Agent deletion” that you need to use to verify what needs to be adjusted based on what the Media Agent is being used for in the environment currently.
The second document contains the needed steps to retire the deduplication database (this is similar to a regular seal but it will not create a new DDB to replace it.
The third document is the actual deletion of the Media Agent itself. Keep in mind that some of the points from the first doc will keep the MediaAgent from being successfully deleted while others will not stop the deletion.
“Impact of the MediaAgent Deletion"
https://documentation.commvault.com/11.24/expert/122570_impact_of_mediaagent_deletion.html
“Retiring a Deduplication Database”
https://documentation.commvault.com/11.24/expert/135146_retiring_deduplication_database.html
“Deleting a MediaAgent”
https://documentation.commvault.com/11.24/expert/121548_deleting_mediaagent.html
Hopefully this helps!