Optimization for direct writes to raid stripes
US11704053B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2022 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Apr 6, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0689
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage control node receives data to be written to a striped volume, allocates first and second stripes, writes the data to at least one data strip of the first stripe, computes parity data based on the data written to the first stripe, and writes the parity data to the first stripe. The storage control node sends a copy command to a target storage node which comprises the at least one data strip of the first stripe to thereby cause the at least one data strip to be copied to a data strip of the second stripe which resides on the target storage node. The storage control node writes additional data to the second stripe, computes updated parity data based on the additional data and the parity data of the first stripe, writes the updated parity data the second stripe, and releases the first stripe for reuse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.