# Custom Calendars FAQ

#### What events are generated by custom calendars?

When a custom calendar expires, an event is generated in the Event Viewer.

#### Are the operations performed using custom calendars recorded in Audit Trail?

Operations performed with custom calendars are recorded in the Audit Trail. See Audit Trail for more information.

#### What happens if time definitions for a custom calendar expires?

If the time definitions for a custom calendar expires, then:

- Related schedules are deleted.

- Data Aging operations do not prune data from a storage policy copy associated to an expired custom calendar.

Therefore, ensure that the custom calendar has been defined for several years.

#### What happens if time definitions for a custom calendar is changed?

If the time has been changed, then:

- The way data is aged from a copy (that has the Extended Retention option enabled) will change.

- Time intervals by which data is copied to a selective copy will change.

So, avoid changing time definitions for a custom calendar.

#### How does Data Aging Operation use custom calendars?

Data aging operation that ages data from a storage policy copy with Extended Retention will age data according to the time definitions set in the associated custom calendar.

For example, if you want to preserve the tapes containing the last full and incremental backups, copied during monthly periods that end on the last Friday of the month then, define a custom calendar to make the last Friday of the month signify last day of the month. Then select the Last Full Backup of Time Period option from the associated storage policy copy's Properties Retention dialog. When selected, the last full backup of each extended retention rule will be retained, provided there are no remaining full backup scheduled for the same subclient during that time period.

#### Can we modify or delete a custom calendar associated with a storage policy copy?

A custom calendar that is associated with a Storage Policy Copy cannot be modified or deleted. Re-assign the storage policy to another calendar before deleting it.

#### Can we modify or delete a custom calendar associated with a job schedule?

Modification made to a custom calendar takes effect upon completion of the next scheduled job associated with the original custom calendar. So, a scheduled job will take place as planned according to the original calendar definitions, and upon completion of the job, the new custom calendar definitions will take effect.

However, we cannot delete the custom calendar associated with a Job Schedule.

#### Can we associate daily and weekly job schedules to a custom calendar?

No. We can associate monthly and yearly job schedules to a custom calendar.

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