Thursday, 21 June 2012

IOA Calendar Facility in Controal-M


Using Calendars to Schedule Jobs: IOA Calendar Facility

Specification of scheduling criteria for jobs can be simplified by using
calendars. A calendar is a defined schedule that can be applied to jobs, such
as Mondays through Fridays in each week in each month
.
Calendars are defined in the Calendar facility. Each calendar is assigned a
unique name that can be specified in job scheduling definitions. A particular
calendar (that is, schedule) need only be defined once.
Specifying the name of a calendar in job scheduling definitions causes that
calendar to be used to schedule those jobs.

Two types of calendars can be defined:
• regular
• periodic


Regular Calendars
Regular calendars consist of scheduling dates or days of the week that can be
defined according to monthly patterns.
For example
• WEEKDAYS – schedules jobs each Monday through Friday in each
month.
• WEEKENDS – schedules jobs on every Saturday and Sunday in each
month.
• QUARTERLY – schedules jobs on the last date in each quarter:
March 31, June 30, September 30, December 31.
Regular calendars are especially useful when many jobs have the same
schedule. Defining the schedule once in a calendar, and specifying the
calendar name in the job scheduling definition of the jobs with that schedule,
makes it unnecessary to individually define that schedule in each job
scheduling definition.

Periodic Calendars
Periodic calendars are especially useful when scheduling dates do not easily
conform to fixed date or day of the week or month patterns.
For example
• PAYCAL – Calendar used for jobs that are scheduled every other
Wednesday (such as payroll jobs). Scheduling occurs on the first, third,
and (if there is one) fifth Wednesday of some months. Scheduling may
occur on the second and fourth Wednesday of other months

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