ACRONIS Backup & Recovery 10 Advanced Server Virtual Edition User Manual page 212

Parameters
Parameter
Full backup
Incremental
Differential
Clean up archive
Apply the rules
(only if the retention rules
are set)
212
Meaning
Specifies on what schedule and under which conditions to perform a full backup.
For example, the full backup can be set up to run every Sunday at 1:00 AM as
soon as all users are logged off.
Specifies on what schedule and under which conditions to perform an
incremental backup.
If the archive contains no backups at the time of the task run, a full backup is
created instead of the incremental backup.
Specifies on what schedule and under which conditions to perform a differential
backup.
If the archive contains no full backups at the time of the task run, a full backup is
created instead of the differential backup.
Specifies how to get rid of old backups: either to apply retention rules (p. 40)
regularly or clean up the archive during a backup when the destination location
runs out of space.
By default, the retention rules are not specified, which means older backups will
not be deleted automatically.
Using retention rules
Specify the retention rules and when to apply them.
This setting is recommended for backup destinations such as shared folders or
centralized vaults.
When there is insufficient space while backing up
The archive will be cleaned up only during backup and only if there is not enough
space to create a new backup. In this case, the program will act as follows:

Delete the oldest full backup with all dependent incremental/differential
backups

If there is only one full backup left and a full backup is in progress, then
delete the last full backup with all dependent incremental/differential
backups

If there is only one full backup left, and an incremental or differential backup
is in progress, an error occurs saying there is a lack of available space
This setting is recommended when backing up to a USB drive or Acronis Secure
Zone. This setting is not applicable to managed vaults.
This setting enables deletion of the last backup in the archive, in case your
storage device cannot accommodate more than one backup. However, you
might end up with no backups if the program is not able to create the new
backup for some reason.
Specifies when to apply the retention rules (p. 40).
For example, the cleanup procedure can be set up to run after each backup, and
also on schedule.
This option is available only if you have set at least one retention rule in
Retention rules.
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