# US 12,761,794 B2 · Adaptive media management for memory systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,761,794 B2 - Document ID: US12761794B2 - Status: Granted - Kind: B2 - Application number: 18/933,218 - Filed: 2024-10-31 - Published: 2025-02-20 - Granted: 2026-10-13 - Earliest claimed: 2022-05-09 - Assignees: Micron Technology, Inc. - Applicants: Micron Technology, Inc. - Inventors: Zhenming Zhou; Ying Yu Tai - Web page: https://patentgrep.com/patent/US12761794B2 ## CPC - G06F 3/061: {Improving I/O performance} - G06F 3/0614: {Improving the reliability of storage systems} - G06F 3/0655: {Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices} - G06F 3/0683: {Plurality of storage devices} - G06F 11/3037: {where the computing system component is a memory, e.g. virtual memory, cache (accessing, addressing or allocating within memory systems or architectures G06F12/00; checking stores for correct operation G11C29/00)} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract Aspects of the present disclosure configure a system component, such as a memory sub-system controller, to provide adaptive media management based on memory component reliabilities. The controller can access configuration data to determine a reliability grade associated with individual groups of the memory components. The controller can then adaptively select between different media management operations based on the reliability grade associated with each individual group of the memory components. ## Claims ### Claim 1 A system comprising: a set of memory components of a memory sub-system; and a processing device operatively coupled to the set of memory components, the processing device being configured to perform operations comprising: accessing configuration data associated with the set of memory components; and performing an individual media management operation on an individual group of memory components of the set of memory components, the individual media management operation selected from a plurality of media management operations based on an individual reliability measure associated with the individual group of memory components. ### Claim 2 (depends on 1) The system of claim 1, the operations comprising: determining, based on the configuration data, one or more reliability grades associated with different groups of memory components of the set of memory components. ### Claim 3 (depends on 1) The system of claim 1, wherein the configuration data comprises a table that associates the individual group of memory components with a first reliability grade and associates another group of memory components with a second reliability grade. ### Claim 4 (depends on 1) The system of claim 1, wherein the individual reliability measure describes at least one of a data retention parameter, a read disturb parameter, a cross temperature parameter, or an endurance parameter. ### Claim 5 (depends on 1) The system of claim 1, wherein the plurality of media management operations comprises different media scan rates. ### Claim 6 (depends on 1) The system of claim 1, the operations comprising: storing a table that associates a first reliability grade with a first media management operation and a second reliability grade with a second media management operation. ### Claim 7 (depends on 6) The system of claim 6, the operations comprising: determining, based on the configuration data, that the individual group of memory components is associated with the first reliability grade; and searching the table to select the first media management operation associated with the first reliability grade. ### Claim 8 (depends on 7) The system of claim 7, wherein the individual media management operation is the first media management operation, wherein the individual group of memory components is a first group of memory components, the operations comprising: determining, based on the configuration data, that a second group of memory components is associated with the second reliability grade; searching the table to select the second media management operation associated with the second reliability grade; and performing the second media management operation on the second group of memory components. ### Claim 9 (depends on 8) The system of claim 8, wherein the first media management operation is performed on the first group of memory components while the second media management operation is performed on the second group of memory components. ### Claim 10 (depends on 8) The system of claim 8, the operations comprising: performing a first media scan frequency on the first group of memory components; and performing a second media scan frequency on the second group of memory components. ### Claim 11 (depends on 1) The system of claim 1, the operations comprising: predicting reliability measures for individual groups of the set of memory components; and storing the predicted reliability measures as part of the configuration data. ### Claim 12 (depends on 1) The system of claim 1, wherein the individual reliability measure represents different read and write temperature ranges, wherein a first media management operation is associated with a first reliability grade, and wherein a second media management operation is associated with a second reliability grade. ### Claim 13 A computerized method comprising: accessing, by a processing device operatively coupled to a set of memory components of a memory sub-system, configuration data associated with the set of memory components; and performing, by the processing device, an individual media management operation on an individual group of memory components of the set of memory components, the individual media management operation selected from a plurality of media management operations based on an individual reliability measure associated with the individual group of memory components. ### Claim 14 (depends on 13) The method of claim 13, wherein the configuration data comprises a table that associates the individual group of memory components with a first reliability grade and associates another group of memory components with a second reliability grade. ### Claim 15 (depends on 13) The method of claim 13, wherein the individual reliability measure describes at least one of a data retention parameter, a read disturb parameter, a cross temperature parameter, or an endurance parameter. ### Claim 16 (depends on 13) The method of claim 13, wherein the plurality of media management operations comprises different media scan rates. ### Claim 17 (depends on 13) The method of claim 13, comprising: storing a table that associates a first reliability grade with a first media management operation and a second reliability grade with a second media management operation. ### Claim 18 (depends on 17) The method of claim 17, comprising: determining, based on the configuration data, that the individual group of memory components is associated with the first reliability grade; and searching the table to select the first media management operation associated with the first reliability grade. ### Claim 19 A non-transitory computer-readable storage medium comprising instructions that, when executed by a processing device, cause the processing device to perform operations comprising: accessing configuration data associated with a set of memory components; and performing an individual media management operation on an individual group of memory components of the set of memory components, the individual media management operation selected from a plurality of media management operations based on an individual reliability measure associated with the individual group of memory components. ### Claim 20 (depends on 19) The non-transitory computer-readable storage medium of claim 19, wherein the configuration data comprises a table that associates the individual group of memory components with a first reliability grade and associates another group of memory components with a second reliability grade.