Operation > Data Flow Management > Universal Discovery > Module/Job-based Discovery > Module/Job-based Discovery User Interface > Discovery Scheduler Dialog Box

Discovery Scheduler Dialog Box

Enables you to define a schedule for a specific job, for example, every day Data Flow Management starts running an IP ping sweep on Class C networks at 6:00 AM.

To access

Use one of the following:

  • Right-click a job and select Edit scheduling.

  • Select Universal Discovery > Discovery Modules/Jobs tab > a job > Properties tab > Discovery Scheduler pane, and click the Edit Scheduler button.
Important Information

  • The Discovery Scheduler defines the frequency of the discovery (daily, monthly) whereas the time template defines when the job should run (during the day, at night, at weekends only). You can run the same schedule with different time templates. For example, you can define a schedule that runs every day and you can define a time template that runs at night from 01:00 AM to 05:00 AM. A job defined in this way runs every day from 01:00 AM to 05:00 AM. You can define a second time template to run at a different time, and you also can use this time template with the same schedule.

  • If you change a schedule for a job, DFM next runs the job according to the following calculation: The current date and time plus the selected interval. For example, if you choose Once, the Invocation Time is in one hour.

For details on creating a time template, see Time Templates Dialog Box.
Relevant tasks
See also

User interface elements are described below (unlabeled elements are shown in angle brackets):

UI Element (A–Z) Description

(Appears when you select Cron). Click to validate the Cron expression you entered.

For descriptions and samples of Cron expressions, see Cron Expressions.
Cron Expression (Appears when you select Cron). Enter a Cron expression in the proper format. For a description of the fields used in Cron expressions and examples of how to use them, see Cron Expressions.
<Days of month>

(Displayed when you select Monthly.) Click the button to choose the days of the month on which the action must run. The Select Days dialog box opens. Choose the required days by selecting the check boxes. You can select multiple days.

  • Select All. Select all the days.

  • Clear Selection. Clear all the selected days.

  • Invert Selection. Switch the selection.
<Days of the week> (Sunday - Saturday) (Appears when you select Weekly.) Select the day or days on which the action should run.
<Schedule options>

  • Once. Define the task to run only once.

  • Interval. Defines the interval between successive runs.

  • Daily. Run a task on a daily basis.

  • Weekly. Run a task on a weekly basis.

  • Monthly. Run a task on a monthly basis.

  • Cron. Enter a Cron expression in the correct format.
<Months of the year> (January - December) (Displayed when you select Monthly.) Select the month or months in which the action must run.
End by

(Does not appear when you select Once). Select the date and time when the action should stop running by selecting the End by check box, opening the calendar, selecting the date and time, and clicking OK.

Note This step is optional. If you do not need to specify an ending date, leave the End by check box cleared.
Invocation hour

(Appears when you select Daily, Weekly, or Monthly.) Select the time to activate the action. Click the button to open the Select Hours dialog box. Choose the required time by selecting the check boxes. You can select multiple times.

  • Select All. Select all the times.

  • Clear Selection. Clear all the selected times.

  • Invert Selection. Switch the selection.

Note You can also enter the time manually in the Invocation hour box. Separate times by a comma and enter AM or PM after the hour. The manually entered action times are not restricted to the hour and half hour only: you can assign any hour and minute combination. Use the following format: HH:MM AM, for example, 8:15 AM, 11:59 PM.
Invocation Time (Appears when you select Once.) Choose the date and time the action should begin running by opening the calendar and choosing a date and time, or accept the default.
Repeat every

(Appears when you select Interval.) Select how often the action runs.

Type a value for the interval between successive runs and choose the required unit of time (minutes, hours, or days).

Note After each change, the next time that the job runs is the current time plus the interval, that is, the job does not start immediately.
Start at

(Does not appear when you select Once). Choose the date and time when the action must begin running by selecting the Start at check box, opening the calendar, selecting the date and time, and clicking OK.

Note  

  • When selecting the start time, the time zone in the start time is set according to the client machine’s location, although it may not match the value selected in Time Zone.

  • This step is optional. If you do not want to specify a beginning time, leave the Start at check box unselected.
Time zone

Select the time zone according to which the Probe must schedule jobs.

The default is <<Data Flow Probe Time Zone>>: the Probe uses its own system-defined time zone. This enables scheduling to take place at different times in different geographical locations.

For all Probes to start working at the same time, select a specific time zone. (This assumes that the Probes' system date/time and time zone are correctly configured.)