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Parameter RETRO is used to control situations where the computer has not been working for a day or more due to hardware failure or holiday, and so on.
When such situations occur, it is necessary to instruct Control-V whether or not the mission should be retroactively scheduled for the days when the computer (or Control-V) was inactive. For printing, migration and backup missions, RETRO=Y should only be used if the job which creates the reports is to be run for the days that the computer was down.
When RETRO=Y, missions are placed on the Active Mission file for all days the mission should have been originally scheduled. Scheduling occurs from the last scheduling date to the current working date, only if that those days were included in one of the scheduling parameters (DAYS, DCAL, and so on). Each mission placed on the Active Missions file is associated with a different original scheduling date. For additional information, see parameter MAXWAIT.
When RETRO=N, the mission is only scheduled for the current working date, only if that the mission is normally scheduled for that date.
RETRO cannot be used with parameters MINIMUM and PDS.
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