To get the storage controller name and the port number, you can use the command VBoxManage showvminfo virtual_machine_name. Among the output you will get such a result (what you are looking for is in italic):
To get the storage controller name and the port number, you can use the command VBoxManage showvminfo virtual_machine_name. Among the output you will get such a result (what you are looking for is in italic):