Storage system and storage apparatus
US8819338B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2013 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Apr 25, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/1059
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage system comprises a first controller and a plurality of storage devices. The plurality of storage devices configure RAID, each of which includes one or more non-volatile memory chips providing storage space where data from a host computer is stored, and a second controller coupled to the non-volatile memory chips. In case where the first controller receives an update request to update first data to second data from the host computer, the second controller in a first storage device of the storage devices is configured to store the second data in an area different from an area where the first data has been stored, in the storage space of the first storage device; generate information that relates the first data and the second data; and generate an intermediate parity based on the first and the second data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.