AUTOCOLL (Collect and Manage Snapshots) › User Created BASELINE Delta Rowset

User Created BASELINE Delta Rowset

In addition to the system created Delta rowsets created by the DELTACRE function, you can create additional Delta rowsets based on the combination of existing Delta rowsets into a new rowset known as a DELTA BASELINE rowset. A Baseline rowset is created by summarizing the selected rowsets and then dividing the duration and counter values by the number of rowsets being summarized. Keywords are provided to allow you to select the Delta rowsets that will be included for processing. During the BASELINE function, special data handling is performed according to the following:

• Beginning date and time information is taken from the earliest rowset processed
• Ending date and time information is taken from the oldest rowset processed
• The duration column is the sum of the duration of the selected rowsets divided by the number of input rowsets
• Counter columns are added together (summarized) and then divided by the number of input rowsets
• Non-counter columns are set to the value of the oldest (ending) rowset