When enabling the data collector, you are required to enter a logon different from any other logon used for Viewpoint. The logon does not require any PERM space, but it should be allocated at least 500 GB of spool space. Each concurrent Stats Manager job shares the same SPOOL limit, so the more concurrent jobs you have running, the more spool space you will need.
Run the following command to create a logon for Stats Manager:
create user statsmanager as perm=<perm space>, spool=<spool space> password=statsmanager;