Specifying the minimum age for migrating data sets

The DAYS parameter of the SETSYS command specifies the minimum age for migrating data sets. If you do not specify this parameter, the minimum age is the same as the minimum you can specify for the serialization and processing-unit environment in your system. In the example system, the minimum age is specified as:

SETSYS DAYS(7)

The value specified by the DAYS parameter of the SETSYS command is used only if no value is specified for the MIGRATE parameter of the ADDVOL command or the MIGRATE parameter of the MIGRATE command. An ADDVOL command with the MIGRATE(0) parameter specified also causes SETSYS DAYS to determine the migration age.