Q STATUS Question

The company to which I am employed was recently acquired by another company that is a heavy Netbackup user. They bill not based on overall occupancy but on the "Front End Usage" of their servers. I don't know how that works for accurate billing but it's what they do and now we are being asked to provide "Front End Capacity" numbers so they can compare. The problem is ADSM/TSM/SP has always had issues with reporting "active only" data. Just recently I was working with an select IBM provided to pull the active for file systems but they also stated we had to go to the individual application servers to pull DB data. Not fun. So when I recently looked at all the detail of the Q STATUS I noticed the following near the bottom.

                 SUR Occupancy (TB): 703                

            SUR Occupancy Date/Time: 2019-01-07, 10:23:18

            Front-End Capacity (MB): 148.21             

             Front-End Client Count: 408                   

            Front-End Capacity Date: 2019-01-07, 10:23:18

                   Product Offering: IBM Spectrum Protect

According to IBM these last few statements are:

SUR Occupancy (TB)

If you have an IBM Spectrum Protect Suite (SUR) license, this field specifies the SUR occupancy on the server. The SUR occupancy is the amount of space that is used to store data that is managed by the IBM Spectrum Protect products that are included in the SUR bundle.

SUR Occupancy Date/Time

Specifies the date and time when SUR occupancy data was last collected.

Front-End Capacity (MB)

Specifies the amount of primary data that is reported as being backed up by clients. Clients include applications, virtual machines, and systems. This value is used for the front-end licensing model.

Front-End Client Count

Specifies the number of clients that reported capacity usage based on the front-end licensing model.

Front-End Capacity Date

Specifies the date and time when front-end capacity data was last collected.

Product Offering

Specifies a product offering.

So what exactly is the SUR license and does the EE license cover that? How is the data generated because my server reports front-end data at 148MB but if it is actually TB then that would fit more closely with overall capacity as front-end would be about 21% of overall occupancy. IBM obviously has some function to gather front-end numbers so why do they also have us going down the rabbit hold of gathering the data application data from the clients?