Datadirect Networks, Inc.

Cedric T Fernandes

Michael Piszczek

John Gordon Manning

William Joseph Harker

Lee Douglas McBryde

Pavan Kumar Uppu

Manjari Mishra

Shivkumar Pandit

Thomas E Fugini

Dave Fellinger

Lauren Belella

J Gordon Manning

John Albert De Leon

A system for data migration between high performance computing architectures and data storage disks includes an intermediate data migration handling system which has an intermediate data storage module coupled to the computer architecture to store data received, and a data controller module which includes data management software supporting the data transfer activity between the intermediate data storage module and the disk drives in an orderly manner independent of the random I/O activity of the computer architecture. RAID calculations are performed on the data prior to storage in the intermediate storage module, as well as when reading data from it for assuring data integrity, and carrying out reconstruction of corrupted data. The data transfer to the disk drives is actuated in sequence determined by the data management software based on minimization of seeking time, tier usage, predetermined time since the previous I/O cycle, or fullness of the intermediate data storage module. The storage controller deactivates the disk drives which are not needed for the data transfer.

System and method for data migration between high-performance computing architectures and data storage devices with increased data reliability and integrity

A latency reduction method for read operations of an array of N solid-state storage devices having n solid-state storage devices for data storage and p solid-state storage devices for storing parity data is provided. Utilizing the parity generation engine fault tolerance for a loss of valid data from at least two of the N solid-state storage devices, the integrity of the data is determined when N&#x2212;1 of the solid-state storage devices have completed executing a read command. If the data is determined to be valid, the missing data of the Nsolid-state storage device is reconstructed and the data transmitted to the requesting processor. By that arrangement the time necessary for the Nsolid-state storage device to complete execution of the read command is saved, thereby improving the performance of the solid-state memory system.

Method for reducing latency in a solid-state memory system while maintaining data integrity

A data migration system between computing architectures and disk drives includes an intermediate data migration handling system having an intermediate data storage module coupled to the computer architecture, and a data controller module including data management software supporting the data transfers between the intermediate data storage module and the disk drives independent of the random I/O activity of the computer architecture. RAID calculations are performed on the data prior to storage in the intermediate storage module, as well as when read therefrom for assuring data integrity, and reconstruction of corrupted data. The data transfer to the disk drives is actuated in a sequence determined by the data management software based on predetermined criteria. The RAID capability is complimented with a real time adaptive RAID stripe size selection depending on the overall capacity of 'healthy' components capable of supporting data striping both for RAID 5 and RAID 6 configurations.

System and method for data migration between high-performance computing architectures and data storage devices

A method for auto-correction of errors in an array of solid-state storage devices having a plurality of storage channels dedicated to storing parity data to provide fault tolerance for a loss of at least two of the plurality of storage channels. A read operation from the storage channels transfers data to a plurality of channel memories. The data in the channel memories is checked to confirm the data is valid. Responsive to detection of invalid data, the data may be tested to identify the storage channel in error, including sequentially excluding data read form a different one of the plurality of channel memories from a parity check and determining the validity of data from remaining channel memories. If valid data is obtained, the storage channel from which the data was excluded is identified as the storage channel in error.

Method for auto-correction of errors in a solid-state memory system

A latency reduction method for read operations of an array of N disk storage devices () having n disk storage devices (A-H) for data storage and p of disk storage devices (I,J) for storing parity data is provided. Utilizing the parity generation engine's () fault tolerance of for a loss of valid data from at least two of the N disk storage devices (A-J), the integrity of the data is determined when N&#x2212;1 of the disk storage devices (A-J) have completed executing a read command. If the data is determined to be valid, the missing data of the Ndisk storage device is reconstructed and the data transmitted to the requesting processor (). By that arrangement the time necessary for the Ndisk storage device to complete execution of the read command is saved, thereby improving the performance of memory system ().

Method for reducing latency in a raid memory system while maintaining data integrity

A method for auto-correction of errors in an array of disk storage devices having a plurality of disk storage devices dedicated to storing parity data to provide fault tolerance for a loss of at least two of the plurality of disk storage devices. A read operation from the storage channels transfers data to a plurality of disk channel memories. The data in the disk channel memories is checked to confirm the data is valid. Responsive to detection of invalid data, the data may be tested to identify the disk storage channel in error, including sequentially excluding data read from a different one of the plurality of disk channel memories from a parity check and determining the validity of data from remaining disk channel memories. If valid data is obtained, the disk storage channel from which the data was excluded is identified as the disk storage channel in error.

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Columbia, MD, United States of America

Cedric T Fernandes