Viewing the Historical Summary workspace

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Begin troubleshooting problems that occurred in the recent past by using the Historical Summary workspace to view a summary of historical data.

About this task

The Historical Summary shows a historical view of a selected data row from a real-time data summary display. It shows data for the selected row of data that goes back over time.

Procedure

  1. Open a Historical Summary workspace view by entering the historical navigation character (H) for a row on an existing summary display.

    For example, to open a historical CICSplex Regions Summary view, place your cursor before a CICS Region Name in the normal CICSplex Regions Summary workspace, type H and press Enter.

    Figure 1. CICSplex Regions Summary workspace

    CICSplex Regions Summary

    The Historical Summary workspace opens. The workspace shows a historical view of the selected data row. A HISTORY indicator is highlighted in the header and footer areas to clearly distinguish that the workspace contains historical rather than current data.

    Figure 2. Example of a Historical Summary workspace

    Example of a Historical Summary workspace
  2. View the data row summaries that go back through time to identify a time period when problems occurred.
    • In the view that is shown in Figure 2 the summary row of historical data at the Recording Time 09:50:00 indicates that a short-on-storage (SOS) condition occurred for region CICSF31A. The Transaction Rate and Maximum Tasks Percent are also highlighted as being above threshold alarm values.
    • Use indications such as the SOS and threshold alarms in the previous bullet to identify when problems occurred and to look at the highlighted time interval in more detail. For example, you can select the 09:50:00 interval and view more detailed snapshots of the data available for that period. For more information about viewing historical snapshot data, see Viewing the Historical Snapshot workspace.
    • You can configure the time interval between the recorded data snapshots. For more information about configuring the historical data collection, see Configuring near-term history data collection for an application
    • You can configure the time-span over which data snapshots are shown in the history summary workspace. For more information about configuring the history time-span view, see Configuring the history time-span.
    Restriction: If a workspace is not configured to show a historical summary, the following message is displayed after you enter H and press Enter from the workspace.

    Message that is displayed when historical summary is not supported for a specific workspace.
    Place your cursor over the message and press Enter to go to the relevant historical configuration workspace. For more information about configuring the historical data collection, see Configuring near-term history data collection for an application