Western Digital Technologies, Inc.

Eyal Widder

Yonatan Tzafrir

Mordekhay Zehavi

Yehuda Hahn

Narendhiran Chinnaanangur Ravimohan

Muralitharan Jayaraman

Michael Micha Ionin

Balakumar Rajendran

Daniel Yerushalmi

Rohit Sathyanarayan

Abhinand Amarnath

Indu Kumari

Alexey Skidanov

A data storage device includes a controller and a memory. The controller includes a host interface and a memory interface. The controller receives inputs from the host, internal storage device inputs, device lifetime calculations, temperature readings and voltage readings. The controller then dynamically adjusts the frequency and voltage for the memory interface based upon the inputs received. As such, the memory interface operates are optimum conditions.

Dynamic calibration of frequency and power storage interface

A storage system and method for improving read performance using multiple copies of a logical-to-physical address table are provided. In one embodiment, a method for parallelism is provided that is performed in a storage system comprising a plurality of memory areas accessible in parallel, wherein each memory area stores a copy of a logical-to-physical address table. The method comprises reading portions of the logical-to-physical address tables in parallel from the plurality of memory areas, wherein the portions comprise translations for logical addresses associated with a plurality of memory commands; translating the logical addresses associated with the plurality of memory commands into physical addresses using the read portions; and performing the plurality of memory commands. Other embodiments are provided.

Storage system and method for improving read performance using multiple copies of a logical-to-physical address table

Apparatuses, systems, and methods are disclosed for block reuse for memory operations. An apparatus may include one or more storage elements and a controller. A controller may be configured to manage a metadata structure and a metadata change structure. In certain embodiments, the metadata structure stores metadata relating to the one or more storage regions and the metadata change structure stores changes to be made to the metadata structure. A controller may be configured to perform an availability check to determine if one or more presently allocated storage regions identified in a metadata change structure are reusable. A controller may be configured to allocate one of a storage region from one or more presently allocated storage regions and a free storage region from a free memory group based on an availability check.

Block reuse for memory operations

Systems and methods for host system memory translation are disclosed. The memory system may send a logical-to-physical address translation table to the host system. Thereafter, the host system may send commands that include a logical address and a physical address (with the host system using the logical-to-physical address translation table previously sent to generate the physical address). After sending the table to the host system, the memory system may monitor changes in the table, and record these changes in an update table. The memory system may use the update table in determining whether to accept or reject the physical address sent from the host system in processing the host system command. In response to determining to reject the physical address, the memory system may internally generate the physical address using the logical address sent from the host system and a logical-to-physical address translation table resident in the memory system.

System and method for host system memory translation

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Hod Hasharon, Israel

Eyal Widder