Western Digital Technologies, Inc.

Sandisk Technologies Inc.

Shir Pinhas

Danny Berler

Eran Moshe

Tami Mernstein

Moriya Saar

Eliana Brody Torgeman

A system and method for autonomic troubleshooting in a system of devices including at least a first device and a second device communicating with each other via a system management bus. The first and second device also communicates with a host device via a separate main bus. The method includes the first device sending a first query, via the system management bus, to the second device. The first device determines if the second device in an error state based on: receiving a response from the second device indicating an error; or absence of a response from the second device. Based on the error state, the first device sends a control command to the second device via the system management bus. In some examples the first device or second device is a data storage device.

Autonomic troubleshooting of a system of devices

Reset operations impact data storage device latency. Every reset operation involves flushing cache data to the memory device and resetting the front end application specific integrated circuit (ASIC) accelerator/host interface module (HIM). Multiple resets that are performed consecutively waste valuable data storage device resources due to the duplication of the operations that every reset operation performs. Data storage device latency can be improved, as can data storage device idle time, by combining reset operations and removing duplicative operations. For example, for two different, but consecutive reset operations, the reset operations are performed by flushing the cache data and resetting the ASIC accelerator/HIM only once rather than repeat the operations for each reset operation. In so doing, the two reset operations complete reset operations faster than would otherwise occur.

Combining operations during reset

Growing community of inventors

Beer Sheva, Israel

Shir Pinhas