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When choosing a schedule for different TrueNAS® Tasks, clicking Custom opens the custom schedule dialog.
Creating a Custom Schedule
Choosing a preset schedule fills in the rest of the fields. To customize a schedule, enter crontab values for the
These fields accept standard cron values. The simplest option is to enter a single number in the field. The task runs when the time value matches that number. For example, entering 10 means that the job runs when the time is ten minutes past the hour.
An asterisk (*) means “match all values”.
Specific time ranges are set by entering hyphenated number values. For example, entering 30-35 in the
Minutes field sets the task to run at minutes 30, 31, 32, 33, 34, and 35.
Lists of values can also be entered. Enter individual values separated by a comma (,). For example, entering 1,14 in the
Hours field means the task runs at 1:00 AM (0100) and 2:00 PM (1400).
A slash (/) designates a step value. For example, while entering * in
Days means the task runs every day of the month, */2 means the task runs every other day.
Combining all these examples together creates a schedule running a task each minute from 1:30-1:35 AM and 2:30-2:35 PM every other day.
There is an option to select which
Months the task will run. Leaving each month unset is the same as selecting every month.
Days of Week schedules the task to run on specific days. This is in addition to any listed Days. For example, entering 1 in Days and setting W for
Days of Week creates a schedule that starts a task on the first day of the month and every Wednesday of the month.
Schedule Preview shows when the current schedule settings will cause the task to run.
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