Symantec Corporation

Veritas Technologies LLC

Parsec Labs, LLC

Jon Genda

Graham Bromley

Walter Angerer

Weibao Wu

Yi Qu

Thomas G Clifford

James P Ohr

Kirk Clowser

Jian Jun Lu

Wei-Zhen Zhu

Richard Bromley

A network attached storage management appliance that can be inserted into a pre-existing network. The appliance sits between an end user and the available storage and optimizes performance and storage through acceleration of data, migration of data, compression of data, deduplication of data, and expansion of storage. The device moves data between lower- and higher-performance storage, with frequently accessed data sitting in higher-performance storage and infrequently accessed data sitting in lower-performance storage.

Network-attached storage enhancement appliance

Method and apparatus for archiving de-duplicated data maintained by an intelligent backup appliance are described. In some examples, backup data managed by a backup appliance in a computer system is archived. A request to archive selected backup images of a plurality of backup images maintained by the backup appliance is received. The selected backup images are compared with a pool of de-duplicated data for the plurality of backup images maintained by the backup appliance to identify common data among the selected backup images and unique data in each of the selected backup images. A core backup is stored on first archive storage media, the core backup including at least a portion of the common data. A unique backup is stored on second archive storage media, the unique backup including the unique data a reference to the core backup stored on the first archive storage media.

Method and apparatus for restoring de-duplicated data

A computer-implemented method for migrating an object from a deduplication store to an external domain in an external media is described. A deduplication store (dstore) deduplication map (dmap) is retrieved from a dstore for an object stored in the dstore. A determination is made as to whether an external dmap exists in the external domain for an object referenced in the dstore dmap. If the external dmap exists, a determination is made as to whether data referenced in the dstore dmap exist in the external dmap. If the referenced data do not exist, the referenced data is extracted from the dstore to the external domain. If the external dmap does not exist, the object and the associated dmap are extracted from the dstore to the external domain.

Systems and methods for migrating an object from a deduplication store to an external domain

Techniques for data deduplication are disclosed. In one particular exemplary embodiment, the techniques may be realized as a method for data deduplication comprising receiving a write request for a unit of data, generating a fingerprint for the unit of data, transmitting at least a portion of the fingerprint to a plurality of deduplication monitors, performing the write request using an indicator indicating a location of a previously stored unit of data having a fingerprint matching the transmitted at least a portion of the fingerprint if a response indicating the previously stored unit of data having the fingerprint matching the transmitted at least a portion of the fingerprint is received from at least one of the plurality of deduplication monitors, and performing the write request using the unit of data if no response is received.

Techniques for global data deduplication

Method and apparatus for archiving de-duplicated data maintained by an intelligent backup appliance

Growing community of inventors

Rogers, MN, United States of America

Jon Genda