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US 7,444,485 B1Granted
Method and apparatus for duplicating computer backup data
AssigneeEMC Corporation
InventorsEdgar J. St. Pierre, Peggy A. McBride, Glenn E. Miller
Life of this patent
Estimating the term…
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AssigneeEMC Corporation
InventorsEdgar J. St. Pierre, Peggy A. McBride, Glenn E. Miller
Estimating the term…
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.
A computer-readable medium encoded with a program for execution on 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, the backup data including a first work item, the program, when executed on the computer system, performs a method for duplicating at least some of the backup data stored on the backup storage medium, the method comprising:
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, a method for duplicating at least some of the backup data stored on the backup storage medium, the method comprising:
A backup server for use in a computer system including a host computer, a storage device storing data for the host computer, and a first computer-readable backup storage medium storing backup data copied from the storage device, wherein the first computer-readable backup storage medium is of a first type, the backup server comprising:
Dependencies are inferred from the claim text.