Performance of RAID rebuild operations by a storage group controller of a storage system
US10990480B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2019 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Oct 11, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7208
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage system includes a plurality of solid-state storage devices and a storage group controller. The storage group controller receives, from a central storage controller, a command comprising information associated with a RAID rebuild operation to reconstruct data stored at the set of solid-state storage devices. In response to receiving the information associated with the RAID rebuild operation, the storage group controller reads other data and parity data stored associated with the data to be reconstructed at the set of solid-state storage devices based on the information associated with the RAID rebuild operation. Upon reading the other data and the parity data stored at the set of solid-state storage devices, the storage group controller reconstructs the data based on the other data, the parity data and the information associated with the RAID rebuild operation and transmits, to the central storage controller, the reconstructed data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.