Archiving Non-Cumulative Cubes in BW

I would like to know if there is a functionality existing in BW3.0b for archiving data of a non-cumulative cube.

If it is can some one point to me where to get information on it. Otherwise is SAP providing this functionality in any upcoming releases of BW.

This is very important for us as we have huge volume of data sitting in our non-cumulative cubes and we are looking into ways of archiving the data.

Your response and help are greatly appreciated.

-- Sri Kode

609-731-8368