In my database folder I have a number of files with the name astpsdat.001 through astpsdat.030, most of the files have no size. However the first 3 at large, they account for over 2 gigs of space. It is only backing up a total of about 9 gigs. Is this normal. I have the prune job set to run and prune after 30 days.Any tips of how to help or what those files are?