Techniques for directed data migration
US10552085B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2016 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Jul 15, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0679
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A host stores “context” metadata for logical block addresses (LBAs) in a manner tied to physical location. Notwithstanding log-structured or copy on write processes, the host is then provided with immediate context when the host is called upon to assist a memory controller with data identified by physical location, for example, for memory reconfiguration, garbage collection, wear leveling or other processes. The metadata for example can provide the host with insight as to which data may be moved to enhance performance optimization and where that data can be placed. In one embodiment, the host writes back one or more references that span multiple layers of indirection in concert with write of the underlying data; in another embodiment, the context can point to other metadata.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.