EMC Assigned Four Patents

Scalable and secure high-level storage access for cloud computing platforms

EMC Corp., Hopkinton, MA, has been assigned a patent (8,352,941) developed by Boris Protopopov, Acton, MA, and Jurgen Leschner, Cambridge, MA, for a "scalable and secure high-level storage access for cloud computing platforms."

The abstract of the patent published by the U.S. Patent and Trademark Office states: "An untrusted component exposing a high level storage object interface within an untrusted client VM accepts application level storage object operations. Responsive to a storage object operation, the untrusted component passes a message through the underlying hypervisor to an associated trusted component. The trusted component processes the message by authenticating the client VM and locating an internal mapping between the client VM and an associated customer-specific set of back-end storage resources to which the requested storage object operation is to be applied. The trusted component uses a trust relationship with the back-end storage system to securely communicate the storage object operation to the back-end storage system, and passes the operation results through the hypervisor back to the untrusted component in the source client VM from which the storage object request originated."

The patent application was filed on June 29, 2009 (12/493,295).

Controlling multi-step storage management operations

EMC, Hopkinton, MA, has been assigned a patent (8,346,735) developed by five co-inventors for "controlling multi-step storage management operations."

The co-inventors are Xuan Tang, Hopkinton, MA, Russell R. Laporte, Webster, MA, Gregory W. Lazar, Upton, MA, Sriram Krishnan, Shrewsbury, MA, and Ying Xie, Northborough, MA.

The abstract of the patent published by the U.S. Patent and Trademark Office states: "A method is used in controlling multi-step storage management operations. From a specification of a desired configuration of a data storage system, a description of a multi-step transaction for producing the desired configuration is derived. The description includes directions for reacting to results of an intermediate step within the multi-step transaction. Management operations are invoked based on the description."

The patent application was filed on Sept. 30, 2008 (12/241,417).

Replication of de-duplicated storage system

EMC, Hopkinton, MA, has been assigned a patent (8,364,917) developed by Allan J. Bricker, Sunnyvale, CA, Richard Johnsson, Palo Alto, CA, and Greg Wade, San Jose, CA, for a "replication of de-duplicated storage system."

The abstract of the patent published by the U.S. Patent and Trademark Office states: "A method for replicating a de-duplicated storage system is disclosed. A stream of data is stored on an originator deduplicating system by storing a plurality of de-duplicated segments and information on how to reconstruct the stream of data. The originator deduplicating system is replicated on a replica system by sending a copy of the plurality of de-duplicated segments and information on how to reconstruct the stream of data to the replica system. A first portion of the de-duplicated segments stored on the originator deduplicating system that is corrupted is identified. A copy of the first portion of the de-duplicated segments is requested to be sent by the replica system to the originator deduplicating system."

The patent application was filed on April 2, 2012 (13/437,784).

Granting access to content unit stored on object addressable storage system

EMC, Hopkinton, MA, has been assigned a patent (8,346,926) developed by four co-inventors for "granting access to a content unit stored on an object addressable storage system."

The co-inventors are Jan F. Van Riel, Geel, Belgium, Tom Teugels, Schoten, Belgium, Michael Kilian, Harvard, MA, and Stephen J. Todd, Shrewsbury, MA.

The abstract of the patent published by the U.S. Patent and Trademark Office states: "Aspects of the invention relate to sharing content stored on an object addressable storage (OAS) system among a plurality of users of the OAS system and authenticating users to an OAS system. In some embodiments, a user may store content units on the OAS system and control access by other users to these content units. In some embodiments, when a user grants one or more other users access to a content unit stored on the OAS system, the OAS system may send a notification of grant of access to the other user(s)."

The patent application was filed on Feb. 11, 2011 (13/025,967).