The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 25, 2005
Filed:
Jun. 29, 1999
Edgar J. St. Pierre, Fall River, MA (US);
Peggy A. Mcbride, Shrewsbury, MA (US);
Glenn E. Miller, Auburn, MA (US);
Edgar J. St. Pierre, Fall River, MA (US);
Peggy A. McBride, Shrewsbury, MA (US);
Glenn E. Miller, Auburn, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
Method and apparatus for performing logical duplication of backup data in a computer system including a host computer, a storage device storing data for the host computer, and at least one computer-readable backup storage medium storing backup data copied from the storage device, is disclosed. In one embodiment, a method copies only a subset of the backup data onto at least one computer-readable duplicate backup storage medium as duplicate backup data so that the duplicate backup storage medium is not an exact duplicate of the at least one backup storage medium. For example, in one embodiment, in which the backup data includes a plurality of work items, a subset of the work items are copied onto the at least one duplicate backup storage medium. Method and apparatus for restoring backup data of interest from duplicate backup storage media are also disclosed.