This option defines whether to validate a backup to ensure that the backup is not corrupted, before data is recovered from it.
The preset is: Disabled.
Validation calculates a checksum for every data block saved in the backup. The only exception is validation of file-level backups that are located in the cloud storage. These backups are validated by checking consistency of the meta information saved in the backup.
Validation is a time-consuming process, even for an incremental or differential backup, which are small in size. This is because the operation validates not only the data physically contained in the backup, but all of the data recoverable by selecting the backup. This requires access to previously created backups.
Note Validation is available for cloud storage located in an Acronis data center and provided by Acronis partners.