Figure 13. Time Windows
The pull-down menu on the left side controls the type of list. The position of the time windows in the table assigns them a priority, with the first row having the highest priority. If multiple time windows have time ranges that overlap each other, the higher-listed time window overrides the others. Therefore, the order of time windows in the list resolves conflicts between overlapping time windows; conflict resolution only applies to time windows of the same type.
To add a new time window:
Select Swap Time Window or Performance Time Window from the pull-down menu on the left side of the Time Windows dialog box (Figure 13).
Click New. The Optimizer - Select a time window for performance dialog box appears (Figure 14).
Specify the values you require for the new time window.
The new time window is now added to the lower table list in the Time Windows dialog box.
EMC Symmetrix Optimizer A Detailed Review