Western Digital Technologies, Inc.

Other

Jeff Furlong

Dean Mitcham Jenkins

Gunter Knestele

Mark James Hardiman

Bret Dee Winkler

David Allen Wright

Maliheh Sarikhani

Mary Barrington

Christian Khanh Phan

Michael Andrew Moshier

Jeffrey James Levie

Methods and apparatus for thermal management in data storage devices are provided. One such data storage device includes a non-volatile memory (NVM), at least one ambient temperature sensor configured to detect an ambient temperature of the data storage device, at least one component temperature sensor configured to detect one or more component temperatures of one or more components of the data storage device, and a processor coupled to the NVM, the at least one ambient temperature sensor, and the at least one component temperature sensor. The processor is configured to determine a composite temperature of the data storage device based on the one or more component temperatures and the ambient temperature. The processor is further configured to determine whether the composite temperature exceeds a threshold and perform a thermal management operation if the composite temperature exceeds the threshold.

Management of composite cold temperature for data storage devices

An electronic device may be provisioned with an infrared (IR) light-emitting diode (LED) configured to externally transmit identifying information that particularly identifies the device, such as the device serial number, to outside of the device. A companion portable IR LED reader may be used to systematically scan a row or shelf or rack of electronic devices to read the respective communication signals transmitted from each of the respective devices, thereby enabling quick and accurate physical identification of the devices in a system/datacenter and inhibiting the unnecessary removal of an incorrect or misidentified device for replacement.

Electronic device having infrared light-emitting diode for data transmission

Example peer storage systems, storage devices, and methods provide data rebuild across a peer communication channel using dynamic work allocation. A rebuild coordinator among the peer storage devices identifies peer storage devices including data units for the rebuild operation. The rebuild coordinator determines work profiles for the peer storage devices and uses the work profiles to determine the rebuild queue for the data units. The data is rebuilt according to the rebuild queue using the data units from the peer storage devices.

Data rebuild using dynamic peer work allocation

Montgomery multiplication can be computed quickly by using carry save adders and parallel multipliers. We present an enhanced technique for very fast Montgomery multiplication that can be used for RSA calculations. This invention utilizes a scalable bit word implementation, suitable for very large bit encryptions. Such designs can be deployed on mid-level FPGAs that have dedicated multiplier logic, on ASICs, or on custom circuits. To our knowledge, our technique yields some of the fastest RSA encryption times to be reported, having area requirements similar to related work. Such circuits can be ideal for increased security in sensitive communication fields.

Scalable, faster method and apparatus for montgomery multiplication

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Irvine, CA, United States of America

Jeff Furlong