Skhynix Inc.

Dmitri Zeleniak

Sergei Musin

Sergei Peniaz

Aliaksandr Zapatylak

Leanid Kavaliou

Uladzimir Marchanka

Valery Abramov

Pavel Chertkov

Aleksandr Kotikov

Uladzimir Hrek

Disclosed is a memory block refreshing method. The method includes storing a read command in a first register to queue read refresh operations in a case that the read command causes a read counter value to reach a read refresher threshold value, the read counter value indicating a number of read operations performed, adjusting the read refresher threshold value based on a number of first memory blocks corresponding to the queued read refresh operations to obtain a new read refresher threshold value, and performing a mover read operation for moving data from the first memory blocks to second memory blocks different from the first memory blocks upon determination that the read counter value has reached the new read refresher threshold value.

Throttling algorithm for block refreshing in data storage device

Techniques for injecting memory read errors may include obtaining an error injection profile from a test library. A defense level in the defense hierarchy can be selected for execution according to the probabilities in the error injection profile. One or more errors can be injected into read operations of the storage device according to the defense-level read retry vector of the selected defense level, and a defense algorithm of the selected defense level is executed to recover read data of the read operations.

Read error injection

A controller of a memory system optimizes parameters of firmware (FW). The controller receives, from a host, a set workload among multiple workloads, each workload including a corresponding restriction on performance metrics. The controller searches for a suboptimal parameter set satisfying restrictions for all workloads among multiple parameter sets for the firmware, based on the set workload, each parameter set including a plurality of parameters, each parameter associated with one or more performance metrics of the memory system.

Firmware parameters optimizing systems and methods

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Minsk, Belarus

Dmitri Zeleniak