International Business Machines Corporation

Globalfoundries Inc.

Abhijit Saurabh

Saravanan Sethuraman

Kenneth Lee Wright

Saurabh Chadha

Prasanna Jayaraman

Gary A Tressler

M Dean Sciacca

Janani Swaminathan

Kyu-hyoun Kim

Hillery C Hunter

Venkatraghavan Bringivijayaraghavan

A system for memory device control may include a stacked memory device and a memory controller. The stacked memory device may include a stack of chips connected to a package substrate by electrical interconnects. The stack may include a plurality of memory chips, a primary control chip, and a secondary control chip. The primary and secondary control chips may be electrically connected to the plurality of memory chips by an internal data bus. The primary control chip may have logic to provide an interface between the internal data bus and a first external data bus. The secondary control chip may have logic to provide an interface between the internal data bus and a second external data bus.

Stacked memory device control

Data is retrieved from a stacked memory device having a plurality of slave memory chips in response to recognizing a problem in the stacked memory device. The problem is determined to be associated with a primary driver module in the stacked memory device. In response, the primary driver module is disabled and an emergency driver module is enabled. Each of the plurality of slave memory chips are selected using a multiplexing unit to retrieve data using the emergency driver module.

Data retrieval from stacked computer memory

A method of monitoring, optimizing, and dynamically varying transfer size in a storage device is provided, including: receiving data transfer parameters for a Solid State Disk (SSD) device; selecting a data transfer size from the disk characterization data associated with the SSD device, based on a SSD device identifier in the received data transfer parameters matching the SSD device identifier in the disk characterization data; searching a weight-age table for a process identifier (PID) matching the PID from the received data transfer parameters; determining a heuristic representing a statistical distribution of Input/Output (I/O) operations per second (IOPS) and transfer sizes over time; modifying the received data transfer parameters based on at least one of: the selected data transfer size from the disk characterization data; the weight-age table; and the heuristic; and completing one or more (I/O) operations with the SSD device using the modified data transfer parameters.

Transfer size monitor, determination, and optimization engine for storage devices

A method of dynamically varying transfer size in a storage device for improved performance may include receiving, by a processor, a plurality of data transfer parameters. The data transfer parameters may be compared against disk characterization data associated with a Solid State Disk, which is the target of a data transfer request. A data transfer size may be selected from the disk characterization data, based on the compared data transfer parameters. The data transfer request may be modified to use the selected data transfer size. The data transfer request is completed using the modified data transfer parameters.

Dynamically varying transfer size in a storage device for improved performance

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Bihar, India

Abhijit Saurabh