Metadata hardening and parity accumulation for log-structured arrays
US11036580B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2019 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | Jul 10, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C29/52
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method, according to one embodiment, includes: sequentially adding metadata information that has been extracted from a received write command to a metadata buffer, and adding parity information that has been extracted from the received write command to a parity buffer. The data corresponding to the received write command is also sent to memory. A determination is made as to whether an open segment in the memory which corresponds to the write command has been filled. In response to determining that the open segment has been filled, the parity buffer is updated with the metadata information included in the metadata buffer. Moreover, the metadata information is destaged from the metadata buffer and parity information is destaged from the parity buffer to a physical storage location in the memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.