Dell Products Inc.

Weilin Liu

Wei Shan Dong

An information handling system may include a processor and a scanning agent including a program of instructions embodied in computer-readable media communicatively coupled to the processor, and configured to, asynchronously from input/output operations to a solid state drive communicatively coupled to the processor: scan sequences of logical block addresses corresponding to consecutively occurring input/output operations to the solid state drive; determine logical block addresses that are frequently proximate to each other in the sequences; and communicate information regarding the logical block addresses that are frequently proximate to each other in the sequences to the solid state drive, such that a controller of the solid state drive uses the information to organize data in physical pages of the solid state drive such that at least one physical page includes logical block addresses that are frequently proximate to each other in the sequences.

Systems and methods for asynchronous input/output scanning and aggregation for solid state drive

A storage device includes a storage subsystem and a logical/physical storage location mapping database that maps LAAs to PAAs that identify physical locations in the storage subsystem. A storage controller receives a storage device mapping granularity configuration command from a host that identifies a number of LBAs to associate with a plurality of LAAs and, in response, associates each of the plurality of LAAs with the number of LBAs identified in the command. The storage controller then writes data to a PAA that includes a data size that is equal to a combined LBA size of the number of LBAs that were identified in the command and associated with each of the plurality of LAAs and maps, in the logical/physical storage location mapping database, the PAA to one of the plurality of LLAs that is associated the number of LBAs identified in the command.

Storage device configurable mapping granularity system where data is written without performing read-modify-write operations

A modification-frequency-based tiered data storage garbage collection system includes a storage device coupled to a host engine. The storage device includes a data storage and garbage collection engine and storage subsystems. The data storage and garbage collection engine receives first modified data from the host engine that provides a modification to first current data stored in a first data storage element provided by one of the storage subsystems and grouped in a first superblock associated with a first data modification frequency range. The data storage and garbage collection engine then determines a first frequency of modification of the first current data and, based on that, writes the first modified data to a second data storage element provided by one of the storage subsystems and grouped in a second superblock associated with a second data modification frequency range that is different than the first data modification frequency range.

Growing community of inventors

Shanghai, China

Weilin Liu