Dell Products Inc.

Girish B Desai

Frederick K H Lee

Leland W Thompson

Alex Liu

Robert J Proulx

Samuel Hudson

Michael Rijo

Frederick Lee

A storage device non-fatal error debug system includes a storage device including a storage device chassis, storage device subsystems housed in the storage device chassis, and a non-fatal error debug subsystem provided in the storage device chassis and coupled to each of the storage device subsystems. The non-fatal error debug subsystem provides a counter system for each of a plurality of data path stages performed by the storage device subsystems to provide data path(s) in the storage device, and monitors each counter system during the execution of commands by the storage device subsystems via the performance of the data path stages. When the non-fatal error debug subsystem determines that a counter system provided for a data path stage performed by a storage device subsystem to provide a data path in the storage device indicates a non-fatal error, it collects debug information associated with that data path stage.

Storage device non-fatal error debug system

A storage operation suspend system includes a chassis having a storage operation suspend subsystem coupled to a communication system and a storage subsystem in the chassis. The storage operation suspend subsystem performs a first storage operation on a storage die in the storage subsystem, receives a second storage operation instruction via the communication system to perform a second storage operation on the storage die, determines that the second storage operation is a higher priority operation than the first storage operation, determines that a first power amount available in a power budget and a second power amount allocated from the power budget to the first storage operation is sufficient to perform the second storage operation when the first storage operation is suspended and, in response, suspends the first storage operation and performs the second storage operation and, following completion of the second storage operation, resumes performance of the first storage operation.

Storage operation suspend system

A counter system includes a counter management subsystem, a storage subsystem having storage elements, and a non-volatile memory system storing a first counter including a first value field/first bitmap field combination for each storage element, and a second counter including a second value field/second bitmap field combination for each storage element. The counter management subsystem resets the first counter and, following each storage operation on a storage element, updates a bit in the first bitmap field for that storage element. When one of the first bitmap fields is filled, the counter management subsystem converts each first value field/first bitmap field combination to a respective first value, resets the second counter, updates the second value field for each storage element with the respective first value for each storage element and, following each storage operation on a storage element, updates a bit in the second bitmap field for that storage element.

Storage device operating data counter system

A storage device RAID data write intermediate parity system includes a storage device coupled to a host system and including a storage subsystem and a volatile memory system. The storage device RAID data write intermediate parity system receives first primary data from the host system, and stores the first primary data in the volatile memory system. The storage device RAID data write intermediate parity system then stores a first subset of the first primary data in the storage system, generates first intermediate parity data using the first subset of the first primary data, stores the first intermediate parity data in the volatile memory system and, in response, erases the first subset of the first primary data from the volatile memory system.

Storage device raid data write intermediate parity system

Systems and methods provide improved bus efficiency in read operations by a solid-state device (SSD) installed in an Information Handling System. A read operation is received that requests data stored in a die of the SSD. A command is issued to the die for use of a first read voltage in retrieving the requested data. Upon receiving confirmation that the die has retrieved the requested data, a command is issued to the die to configure a second read voltage for use in retrieving data requested by a second read operation received by the SSD. Concurrent with the die setting the second read voltage for use in retrieving the data requested in the second read operation, a command is issued to initiating transfer, by the die, of the data retrieved for the first read operation. In this manner, idle intervals in the bus used to service the die are eliminated.

Command sequencing for read operations by solid-state drives

In general, embodiments of the invention relate tracking the operating temperature of the solid-state memory modules (SSMMs) in order to improve their performance.

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Round Rock, TX, United States of America

Girish B Desai