Abstract: A control processor manages the power budget in a drive enclosure and is within the drive enclosure which monitors in real time a redundantly configured power supply unit, drives, interposers, and temperature sensors, and determines the power settings for each drive to avoid overload and overheating in the system. The control processor dynamically adjusts the mode of operation as needed during operation through the SAS interposer. A localized monitoring and control mechanism eliminates the need for extraneous coordination of information across various entities that access the storage. Data tunneling takes place directly between the compute nodes and target drives through the SAS expander and interposer, and does not need buffering the pending IO requests in the DRAM.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A method for auto-correction of errors in an array of disk storage devices (210) having a plurality of disk storage devices (210I, 210J) dedicated to storing parity data to provide fault tolerance for a loss of at least two of the plurality of disk storage devices (210A-210J). A read operation from the storage channels (210A-210J) transfers data to a plurality of disk channel memories (220A-220J). The data in the disk channel memories (220A-220J) 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 (220A-220J) 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.