Computer Associates BABNWUP900NE6 Administration Guide - Page 305

ca_backup Option -retention -jobunit Description Specifies the media retention period in days, and is an attribute of the created media pool. Each job unit represents a day in the rotation schedule scheme, starting with Sunday and ending with Saturday. You can customize each day, although there are certain restrictions such as combining differential and incremental backups within the same rotation schedule. -reschedule -exception > -gfsrotation Note: The first -jobunit switch is associated with Sunday, the next Monday, and so forth. It is your responsibility to account for each day of the week, meaning 7 -jobunit switches are required. By default, any job units (days) that have not been represented by a -jobunit switch are set to off and no backup takes place on that day. You have the option of not specifying the -jobunit switch, which sets the rotation schedule to the default 5-day incremental with a full backup on Friday. This is the same schedule that is seen from the Backup Manager. Used with the -custom, -rotation, or -gfsrotation switch. Specify the time to run a Makeup job if there are missed targets in the original backup. Lets you specify an exception condition from the regular rotation schedule. This feature is useful in the case of a holiday or other event where the user desires a different behavior for the backup job on that date. Specifies the schedule type of the backup job as a GFS (Grandfather, Father, Son) rotation schedule. Command Line Utilities B-19