How many records in an ODS and Cube

Hi Everyone,

I am loading some data from R/3 to BW. The first load was a 5 day load for the month of January to ODS. The data has transformed from 2 million records to 32 million records because of a start routine. So if I continue to do loads for one full year you just can imagine what the final output will be.So want your suggestions on what are limitations for loading data in ODS and Cube and also what I should say to the customer so that he understands the loads will have on the production system. If anyone has come across such situation,please share your experiences with me.Also can someone send me something like a checklist which I can follow while dataloading(eg.TCodes, database,timing,etc)

Regards,

Kal