Acronis Backup for PC - User Guide - Manual (Page 47)

47 Copyright © Acronis International GmbH, 2002-2014
Monthly full, weekly differential, and daily incremental backups plus cleanup
This example demonstrates the use of all options available in the Custom scheme.
Suppose that we need a scheme that will produce monthly full backups, weekly differential backups,
and daily incremental backups. Then the backup schedule can look as follows.
Full backup: Schedule: Monthly, every Last Sunday of the month, at 9:00 PM
Incremental: Schedule: Weekly, every workday, at 7:00 PM
Differential: Schedule: Weekly, every Saturday, at 8:00 PM
Further, we want to add conditions that have to be satisfied for a backup task to start. This is set up
in the Conditions fields for each backup type.
Full backup: Conditions: Location available
Incremental: Conditions: User is logged off
Differential: Conditions: User is idle
As a result, a full backup—originally scheduled at 9:00 PM—may actually start later: as soon as the
backup location becomes available. Likewise, backup tasks for incremental and differential backups
will wait until all users are logged off and users are idle, respectively.
Finally, we create retention rules for the archive: let us retain only backups that are no older than six
months, and let the cleanup be performed after each backup task and also on the last day of every
month.
Retention rules: Delete backups older than 6 months
Apply the rules: After backing up, On schedule
Cleanup schedule: Monthly, on the Last day of All months, at 10:00 PM
By default, a backup is not deleted as long as it has dependent backups that must be kept. For
example, if a full backup has become subject to deletion, but there are incremental or differential
backups that depend on it, the deletion is postponed until all the dependent backups can be deleted
as well.
For more information, see Retention rules (p. 73).
4.2.6.4 Tower of Hanoi scheme
At a glance

Up to 16 levels of full, differential, and incremental backups

Next-level backups are twice as rare as previous-level backups

One backup of each level is stored at a time

Higher density of more recent backups
Parameters
You can set up the following parameters of a Tower of Hanoi scheme.
Schedule Set up a daily (p. 59), weekly (p. 61), or monthly (p. 63) schedule. Setting up schedule
parameters allows for the creation of simple schedules (example of a simple daily