Storage system and method for caching a single mapping entry for a random read command
US11086786B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2019 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Dec 17, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/684
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage system and method for caching a single mapping entry for a random read command are provided. In one embodiment, a storage system is provided comprising a memory and a controller. The controller is configured to determine whether a read command received from a host is a random read command, wherein the read command comprises a logical address; and in response to determining that the read command received from the host is a random read command, caching only an associated logical-to-physical address map entry from a logical-to-physical address map stored in the memory instead of caching a larger segment of the logical-to-physical address map that contains the entry and other entries. Other embodiments are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.