Symantec Operating Corporation

Symantec Corporation

Schneider Electric It Corporation

Lassofx, Inc.

Michael T Rowan

Kevin Rodgers

Gregory Becker

David A Knight

David E Medders

Robert Condon

J Mitchell Haile

Aloke Guha

Michael Anthony

Ron Passerini

Robert Warren Perry

Jeff Darcy

Christopher Rocca

Adam Matusiak

Michael Henriksen

William White

Kevin Rogers

Michael D Anthony

A method for reducing data size of digital images is provided. The method includes receiving a Joint Photographic Experts Group (JPEG) encoded image, and performing an entropy decode on the image. The method also includes generating a fingerprint for each JPEG coefficient block, and processing the fingerprints to determine the identity of any duplicate or similar JPEG coefficient blocks. The method further includes generating metadata identifying the duplicate or similar JPEG coefficient blocks, and compressing non-duplicate and/or non-similar JPEG coefficient blocks. The method also includes transferring the metadata and the non-duplicate and/or non-similar JPEG coefficient blocks to a remote system.

System and method for storing and moving graphical image data sets with reduced data size requirements

A backup computer storage system that protects and/or recovers data on a primary computer storage system is disclosed. The backup computer system may be used to backup databases, files, and/or applications. In some embodiments, the backup system may be used to backup an image of the primary computer storage system. In other embodiments, the backup system may be used to backup one or more databases, replicate an image of data that is on the primary computer storage system, restore data from the backup system to the primary computer storage system, restore data to a database while non-affected portions of the database are available and can be used, record all transactions in real time without overwriting any previously stored backup data, and maintain historical and/or chronological information related to backed up data.

System and method for backing up a computer system

Techniques for power analysis for data centers are disclosed. In one particular exemplary embodiment, the techniques may be realized as a method for power analysis for a plurality of computing platform components comprising receiving information associated with a component, retrieving, using a computer processor, electronically stored data associated with the component, estimating power usage of the component based at least in part on the stored data, and outputting an indicator of power usage.

Techniques for power analysis

A backup computer storage system that protects and/or recovers data on a primary computer storage system is disclosed. The backup computer system may be used to backup databases, files, and/or applications. The backup system may be used to backup an image of the primary computer system. The backup system may also be used to backup one or more databases. The backup system may replicate an image of data that is on a primary computer system. The backup system may also be used to restore data from the backup system to the primary computer system. The backup system may restore data to a database while non-affected portions of the database are available and can be used. The backup system may record all transactions in real time without overwriting any previously stored backup data. The backup system may maintain historical and/or chronological information related to the backed up data.

A storage management device can receive a request for a modification history for a location within a data store, determine one or more times at which at least a portion of data stored at the location was modified, and transmit the one or more determined times.

Systems and methods for providing a modification history for a location within a data store

A method, apparatus, and system for accessing units of storage that depends at least in part on an address of the unit of storage and the time that data was written to the unit of storage. A virtual data store can be created that reflects the state of an original data store at a specified time, where the specified time is selected, for example, from a substantially continuous time interval.

Virtual data store creation and use

A storage management device records write requests that are directed to a data store. In one embodiment, the storage management device records a plurality of write request entries, each one of which includes information relating to a write request, in at least one first database table, and maintains, for each first database table, at least one record in a second database table. The one or more records in the second database table include data representing the effects of the write requests on a state of at least one portion of the data store. In one such embodiment, each time that one write request entry is recorded in one first database table, the storage management device updates at least one record in the second database table.

Methods and apparatus for recording write requests directed to a data store

A backup computer storage system that protects and/or recovers data on a primary computer storage system is disclosed. The backup computer system may be used to backup databases, files, and/or applications. In some embodiments, the backup system may be used to backup an image of the primary computer system. In other embodiments, the backup system may be used to backup one or more databases. In some embodiments of the present invention, the backup system replicates an image of data that is on a primary computer system. The backup system may also be used to restore data from the backup system to the primary computer system. In some embodiments, the backup system may restore data to a database while non-affected portions of the database are available and can be used. In some embodiments, the backup system records all transactions in real time without overwriting any previously stored backup data. In some embodiments of the present invention, the backup system maintains historical and/or chronological information related to the backed up data.

System and method for maintaining a backup storage system for a computer system

In a data storage system, a storage management device includes at least a target mode driver, a data classifier in communication with the target mode driver, a plurality of storage buffers in communication with the target mode driver, a plurality of I/O managers in communication with the data classifier, and a physical store interface in communication with the plurality of I/O managers and with the plurality of storage buffers.

Data storage system

A method for identifying a time at which first data was written to a data store. A data store is configured to respond to data requests made to the data store with the data in the data store at a first time in the past. The method can be used to identify a time, for example, at which a data store was corrupted.

Method for identifying the time at which data was written to a data store

System and method for restoring data on a data storage system

A method, apparatus, and system for accessing units of storage that depends at least in part on an address of the unit of storage and the time that data was written to the unit of storage.

Method and system for obtaining data stored in a data store

A storage management device receives a request to restore a portion of a data store to its content at a specified past time, which is selected from a substantially continuous time interval. In response to the received request, the storage management device stores in the portion of the data store content that was stored in the portion of the data store at the specified past time and that was overwritten since the specified past time.

Growing community of inventors

Amesbury, MA, United States of America

Michael T Rowan