Patent Number: 8,793,453

Title: Multiple cascaded backup process

Abstract: Provided are a method, system, and a computer program product handling a backup process. An instruction initiates a new backup from a source volume to a target volume using one of a plurality of backup processes. A cascade includes a cascade source volume and at least one cascade target volume, and a write to a storage location in one of the cascade volumes causes a copying of the storage location to be written in the cascade source volume to each of the cascade target volumes in the cascade according to a cascade order in which the at least one cascade target volume and the cascade source volume are linked in the cascade. The cascade is modified to include the target volume of the new backup in response to determining that there is an existing cascade, else a new cascade using the backup process of the new backup is created.

Inventors: Agombar; John P. (Hampshire, GB), Beeken; Christopher B. (Hampshire, GB), Scales; William J. (Hampshire, GB), Wilkinson; John P. (Hampshire, GB)

Assignee: International Business Machines Corporation

International Classification: G06F 12/16 (20060101)

Expiration Date: 7/29/12018