Hi Stan,
The DB retention policy will not help as the DB would be purged when the next roll up jobs and purge scripts are configured to run.
You could try a manual purge of data beyond a certain specified date
Mware KB: Purging old data from the database used by vCenter Server
The script can be configured to contain data for number of days you want to retain data for
<snip>
- Modify event.maxAge to 30, and modify the event.maxAgeEnabled value to true.
- Modify task.maxAge to 30, and modify the task.maxAgeEnabled value to true.
</snip>
Regards
a