Full ABAP Edition-Trial (with Web Dynpro for ABAP) Max DB data volume

I recently installed Full ABAP Edition-Trial (with Web Dynpro for ABAP)- SPS08.

http://static.flickr.com/89/243544270_91e713e3a3_o.jpg

as you can see, it's already 92% acquired ( just after installation)

Is it correct?

or it's better to add another volume?

The other question is

according to the license installation guide,

it sounds like we can delete the temp licese with SAP*.

so I did like that but i got the following message

http://static.flickr.com/81/243546622_bc99d1af2b_o.jpg

Well, I could delete the old license with BCUSER.

Thanks,

David