(Optional) Configure historical data collection

No historical data is collected unless the collection of historical data is configured in the Tivoli Enterprise Portal or the OMEGAMON enhanced 3270 user interface (3270UI).

Before you begin

Important: The content in this section was created for and applies to the original persistent data store, referred to as PDS V1. A new PDS version (referred to as PDS V2) now exists. PDS V1 will eventually be deprecated.
Data sets for storing the collected historical data must be allocated before you begin historical data collection.

About this task

In the Tivoli Enterprise Portal, you configure and start historical data collection through the History Collection Configuration window of the Tivoli Enterprise Portal. In this window, you specify the attribute groups for which you want data to be collected, the interval for data collection, the location where you want the collected data to be stored (at the monitoring server or at the agent), and whether you want the data to be migrated to the Tivoli® Data Warehouse.

In the enhanced 3270UI, you configure historical data collection using the OMEGAMON History Configuration workspace. The workspace is displayed after you select the application and attribute group for which you want to collect data. Then, you specify the interval for data collection, the location where you want the collected data to be stored (at the monitoring server or at the agent), and the managed system or managed system list on which you want data collected. You cannot configure data warehousing through the enhanced 3270UI, nor can you configure summarization and pruning. Only a subset of attributes can be configured and displayed in the enhanced 3270UI.

Both interfaces list the attribute groups, or tables, for each application that are enabled for historical collection and reporting. To enable historical data collection, you must select and configure each attribute table for which you want to collect data, and then start collection for those tables. If you want to warehouse the data for long-term historical reporting, you must set the Warehouse Interval to the interval at which data is warehoused.

For detailed instructions on configuring history data collection in the Tivoli Enterprise Portal, see the IBM Tivoli Monitoring: Administrator's Guide and the Tivoli Enterprise Portal online help. For instructions on configuring historical data collection in the enhanced 3270UI, see Configuring near-term history.