PI message archiving

Hi Experts,

I have successfully configured PI message archiving (at integration engine level) in development system. On the first day, system archived and deleted about 670 MB of data from different tables. However I was not able to see the size reduce of table PSAPSR3 after archiving and deletion, via tcode DB02.

Is there any step that I am missing or any other activity that is needed after the archiving setup so that I can see the actual table space? Is the database revoke activity of any use here?

Regards,

Nikhil