User manual

12 Copyright © Acronis International GmbH, 2002-2013
Retention rules
Specify how long you want to retain the daily, weekly, and monthly backups.
The retention period for weekly backups must exceed that for daily backups. The retention period for
monthly backups must exceed that for weekly backups.
The default settings are the following:
 Daily backups: 5 days (recommended minimum)
 Weekly backups: 7 weeks
 Monthly backups: 12 months
Example
Suppose that you use the default settings (run backups Monday through Friday, Weekly/Monthly
backups on Friday, the default retention rules) and apply the backup plan on Monday, March 1.
The following table shows which daily (D), weekly (W), and monthly (M) backups will remain on
Friday, April 30. Backups that are shown on the gray background will be deleted by that day.
Mon
Tue
Wed
Thu
Fri
Sat
Sun
March 1–7
D
D
D
D
W
–
–
March 8–14
D
D
D
D
W
–
–
March 15–21
D
D
D
D
W
–
–
March 22–28
D
D
D
D
M
–
–
March 29–April 4
D
D
D
D
W
–
–
April 5–11
D
D
D
D
W
–
–
April 12–18
D
D
D
D
W
–
–
April 19–25
D
D
D
D
W
–
–
April 26–May 2
D
D
D
D
M
–
–
1.6.1.2 Backup options
On the Options tab, configure the parameters of the backup operation.
Encryption
Specify the password to be used for encrypting the backups.
The backups will be encrypted with the AES-256 encryption algorithm.
The password is not stored anywhere on the disk or in the backup file. Make sure you remember the
password. Recovering a lost password is not possible.
If you edit the backup plan (p. 14) and change or remove the password, the retention rules will no
longer apply to the backups with the old encryption setting. Also, separate entries will be shown in
the backup storage for sets of backups with different encryption settings. During recovery, you will
need to select the correct entry and type the correct password.