Data retention policy is used to regulate the length of time older versions of deleted files/folders, updated files, or update file permissions/attributes are kept before they are permanently removed from the backup storage. This is typically specified in the number of days, weeks, months, or backup jobs.
When CloudBacko Go performs a backup job it may detect that changes have taken place since the previous backup; files and/or folders may be deleted, updated, or file permission/attributes are updated. These outdated files and/or folders will now be moved from the "data area" to the "retention area", which is similar to a recycle bin. These files, folders, file permissions/attributes are still available for recovery until they are permanently removed from the backup storage.