Configure System Parameters > Configure Retention Periods for Database Tables
  
Version 10.2.00
Configure Retention Periods for Database Tables
The data retention period for various database tables often can be modified to maintain reasonable table sizes. Data retention periods can be modified for the following types of data:
Historical Data - A variety of log tables are updated during data collection.
Performance Data - Performance data is collected for a variety of data object properties.
For details on what can be modified and how, see Configure Data Retention Periods.