Since the release of vRanger 6.1, forcing a full backup on a particular day is now a possibility.
This solution details the steps needed to perform this.
In the Retention Policy Selection step of the Backup Wizard for an incremental backup:
1. Select your Savepoint Count.
2. Select Incremental.
3. Configure your incremental options. For incremental backups, you can either select a day or multiple days for the
full backups to occur.
- Full Backup Days - A full backup will be run on the selected day or days. To run full
backups only on these days, ensure that the Threshold Count value is set to “8” or higher. A
threshold count of “7” or less will cause a full backup to also run 7 days from the date the job
is scheduled, even if that day is not a selected day.
- Threshold Count - This defines the number of incremental backups to be performed before
a full backup is done.
Note: The Threshold Count setting is still applied if one or more Full Backup Days are set. In order to
prevent the Threshold Count setting from triggering an unwanted full backup, set the Threshold
Count to “8” or higher. With weekly full backups triggered by the Full Backup Days setting, the
number of incrementals should never reach the threshold trigger.
4. For a differential backup, the Threshold Size setting is still applied if one or more Full Backup Days are set. In order to
prevent the Threshold Size setting from triggering an unwanted full backup, set the Threshold Size to“100” or higher.
Further points to note:
Forced Full is based on when the backup job is created, NOT when the backup task is executed
Lets take an example where a forced full is scheduled to run every Monday.
A: Backup Job runs on Sunday, however, the backup task remains queued and does not execute until Monday - The backup will be an incremental or differential.
B: Backup Job runs on Monday (scheduled Forced Full), but the backup task executes on Tuesday - The backup will be a full backup.
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