Exagrid Systems, Inc.

James E Pownell

Adrian T VanderSpek

David G Therrien

Herman Robert Kenna

Thomas G Hansen

Cory Sawyer

Ashok T Ramu

Steven H Evilia

Elizabeth Dougherty

Dave Voegtlin

Paul B Greizerstein

Maxwell Joel Berenson

Sean R Gilhooly

Embodiments of this invention provide primary magnetic disk data storage capacity to clients while at the same time making sure that client data is replicated locally and at an offsite location to protect from all forms of data loss.

Method and apparatus for integrating primary data storage with local and remote data protection

The present invention provides systems and methods for transferring a set of files. Metadata and stub files associated with the set of files are received at a destination fileserver, a location component in the destination fileserver is updated to maintain a list of repository nodes associated with each file in the set of files, and each stub file is replaced with the full content of the file associated with the stub file. The replacing includes receiving a client request for a specified file in the set of files and replacing the stub file associated with the specified file with a full content of the specified file if the full content of the specified file has not yet been transferred. Replacing the stub file associated with a requested file is a higher priority task than replacing a stub file associated with a non-requested file.

Method and apparatus for server share migration and server recovery using hierarchical storage management

The present invention relates to a computer primary data storage system that integrates the functionality of file backup and remote replication to provide an integrated storage system that protects its data from loss related to system or network failures or the physical loss of a data center.

Method and apparatus for managing data integrity of backup and disaster recovery data

The present invention relates to a computer primary data storage system that integrates the functionality of file backup and remote replication to provide an integrated storage system.

Method and apparatus for storage system to provide distributed data storage and protection

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Natick, MA, United States of America

James E Pownell