Emc Corporation

Sujit Suresh Naik

David C Dysert

Assaf Natanzon

Neil F Schutzman

Thomas L Dings

Robert Alan Boudrie

In a first embodiment, a method and computer program product for use in replication comprising pushing a point in time (PIT) to a de-duplication device, creating a virtual LUN based on the PIT pushed to the de-duplication device, and exposing, via a Data Protection Appliance (DPA), the virtual LUN. In a second embodiment, a method and computer program product for use in replication comprising choosing an object to be recovered at a point in time (PI), spawning a virtual machine, creating a virtual LUN based on the PIT, exposing the virtual LUN to the virtual machine, recovering the object from the PIT mounted to the virtual machine, and un-exposing the virtual LUN to the virtual machine.

Snapshots in de-duplication

A system for providing high speed external backup and restoration of data in a data storage system. Individual data objects are backed up in logical order on backup media such as magnetic tape so that they may be retrieved individually. Minimized descriptions of backed up data are transmitted between the host and backup systems to control high speed transfer of data between data servers and backup devices on a separate data channel. The descriptions are manipulated by the backup system to comply with formats of any number of host systems and data storage systems and to efficiently map the backed up data onto the backup devices. The system also provides for restoration of data to the data storage system by using a host system to pre-allocate space for the restored data, obtaining mapping information for the allocated space from the host system, and then directly writing the restored data into the allocated space, based on the mapping information.

Growing community of inventors

Northborough, MA, United States of America

Sujit Suresh Naik