US 2026/0093401 A1 · MEMORY MANAGEMENT METHOD AND STORAGE DEVICE

Abstract

A memory management method and a storage device are provided. The method includes: according to erase count information, read count information, and valid count information corresponding to each entity unit, obtaining quantified evaluation information corresponding to each entity unit; determining a source unit from the plurality of entity units according to the quantified evaluation information; and performing data migration on valid data in the source unit. Therefore, both the execution performance of a garbage collection operation and the maintenance management performance of the storage device may be balanced, so that the service life of the storage device may be increased.

Claims14

Dependent claims

A memory management method for a storage device, wherein the storage device comprises a memory module comprising a plurality of entity units, and the memory management method comprises:

according to erase count information, read count information, and valid count information corresponding to each entity unit of the plurality of entity units, obtaining quantified evaluation information corresponding to each entity unit;
determining a source unit from the plurality of entity units according to the quantified evaluation information;
and
performing data migration on valid data in the source unit.

1 more element

A storage device, comprising:

a connection interface configured to be connected to a host system;
a memory module;
and
a memory controller connected to the connection interface and the memory module,
wherein the memory module comprises a plurality of entity units, and the memory controller is configured to:
according to erase count information, read count information, and valid count information corresponding to each entity unit of the plurality of entity units, obtain quantified evaluation information corresponding to each entity unit,
determine a source unit from the plurality of entity units according to the quantified evaluation information, and
perform data migration on valid data in the source unit.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

19/268,967Filed 14 Jul 2025

Priority

CN 202411374120.829 Sep 2024

Published

2 Apr 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

G06F 3/0616
Improving the reliability of storage systems: in relation to life time, e.g. increasing Mean Time Between Failures [MTBF]
G06F 3/0647
Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems: migration mechanisms
G06F 3/0659
Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices: command handling…
G06F 3/0679
Single storage device: non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]

Memory management method and storage device

Life of this patent

Memory management method and storage device

Life of this patent

Abstract

Claims14