Assuming the service description is the same, that should be all that is required. Otherwise, you could merge the old file with the new file using @box293's Performance Data Tool component:
https://exchange.nagios.org/directory/A ... ol/details
Missing Capacity Planning Graphs on Drives
Re: Missing Capacity Planning Graphs on Drives
Former Nagios employee
https://www.mcapra.com/
https://www.mcapra.com/