DDN Assigned Three Patents

Data migration between performance computing architectures
and de-clustered RAID data storage system with automatic data redistribution
DataDirect Networks, Inc., Chatsworth, CA, has been assigned a patent (9,848,042) developed by Parkhurst, Micheal S., Newbury Park, CA, for a “system and method for data migration between high performance computing architectures and de-clustered RAID data storage system with automatic data redistribution.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A system and method for data migration between data generating entities and de-clustered RAID storage employs a data re-distribution approach with the purpose of eliminating drives thrashing and attain an even I/O activity distribution for Physical Disk Extents, (PDEs) residing on Physical Disks. The system monitors the I/O activity map, identifies competing over-used PDEs residing on the same physical disk drive, and if the drive thrashing is detected, re-directs ‘write’ or ‘read’ requests from the over-used PDEs to a different physical disk or to underused PDEs on the same physical disk.”

The patent application was filed on May 29, 2015 (14/725,507).

Dual access memory mapped data structure memory
DataDirect Networks, Inc., Chatsworth, CA, has been assigned a patent (9,824,041) developed by Weber, Bret S, Wichita, KS, for a “dual access memory mapped data structure memory.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Systems and methods are provided for expanding the available memory of a storage controller. The systems and methods utilize a PCIe memory controller connected to the backend interface of the storage controller. Memory of the PCIe memory controller is memory mapped to controller memory of the storage controller. The PCIe connection allows the storage controller to access the memory of the PCIe memory controller with latencies similar to that of the controller memory.”

The patent application was filed on December 8, 2014 (14/563,507).

Data storage employing variable redundancy distributed RAID controller
DataDirect Networks, Inc., Chatsworth, CA, has been assigned a patent (9,823,968) developed by Fugini, Thomas E., Mt. Airy, MD, Piszczek, Michael J., Laurel, MD, Harker, William J, Columbia, MD, Cope, Jason M., Highland, MD, and Uppu, Pavan Kumar, Woodbine, MD, for a “data storage system employing a variable redundancy distributed RAID controller with embedded RAID logic and method for data migration between high-performance computing architectures and data storage devices using the same.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Variable Redundancy Distributed, (VRD) RAID controller in a data storage environment contains embedded RAID logic permitting to choose and compute a desired redundancy coding scheme from a plurality thereof pre-programmed and embedded in a Compute Engine in the VRD RAID controller. ‘Write’ or ‘Read’ requests which are received from data generating entities, contain information identifying a type of the redundancy coding scheme of interest. The controller decodes the request, and automatically applies the desired computation to the incoming data without burdening the CPU with the computational activity. The variable redundancy computational ability of the subject systems provides an extremely versatile and flexible tool for RAID operations.”

The patent application was filed on August 21, 2015 (14/832,147).