Log-structured array (LSA) partial parity eviction and reassembly
US10540231B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2018 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Jul 17, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1096
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments for optimizing resource consumption through partial parity information eviction in a storage system of a data storage environment. One or more cooperative Redundant Array of Independent Disks (RAID) parity computations are performed by evicting partial parity data from a RAID controller memory to a storage entity prior to a full stripes worth of data being monotonically written to the storage entity. The storage entity assembles the partial parity data from the one or more cooperative RAID parity computations into a single parity computation valid for the full stripes worth of data, thereby offloading parity computation to the storage entity to more efficiently utilize the RAID controller memory resources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.