METHOD, SYSTEM, PROGRAM, AND DATA STRUCTURES FOR NAMING FULL BACKUP VERSIONS OF FILES AND RELATED DELTAS OF THE FULL BACKUP VERSIONS

摘要

Disclosed is a system, method, program, and data structure for performing a backup operation of a target file. At least one operation is initiated to perform at least one delta backup of the target file to at least one delta backup set. A delta backup set includes changes made to a version of a full backup set of the target file generated at a first time, such as an incremental or differential backup operation. The at least one delta backup set is assigned a name component indicating the version of the full backup set generated at the first time subject to the delta backup and an operation is initiated to perform a full backup of the target file to a version of the full backup set at a second time. The second time follows the first time. A determination is made of all delta backup sets having the name component indicating the version of the full backup set generated at the first time during the full backup operation at the second time. An operation is initiated to render inactive the determined delta backup sets having the name component indicating the version of the full backup generated at the first time.