Data migration method, host, and solid state disk
US11960749B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2023 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | May 8, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7203
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A host of a storage system is coupled to multiple SSDs. Each SSD is configured with a migration cache, and each SSD corresponds to one piece of access information. The host obtains migration data information of to-be-migrated data in a source SSD, determines a target SSD, and sends a read instruction carrying information about to-be-migrated data and the target SSD to the source SSD. The source SSD reads a data block according to the read instruction from a flash memory of the source SSD into a migration cache of the target SSD. After a read instruction is completed by the SSD, the host sends a write instruction to the target SSD to instruct the target SSD to write the data block in the cache of the target SSD to a flash memory of the target SSD.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.