Gaps and sudden drops or rises in charts

If there is a gap in a line chart or between two bars in a bar chart, or two consecutive snapshots differ considerably from each other, the interval between the snapshots might have changed for one of the following reasons:

• DB2® has been restarted. Because the data view shows delta values, the delta between the last value before the DB2 stop and the first value after the DB2 restart would be a negative number. To reflect this situation, a gap appears in the chart and the Report section of the data view shows a value of N/C. To view the Report section click Report.
• The interval at which history data is collected might have been configured. A line chart shows a sudden drop or rise and a bar chart continues with much smaller or larger bars.