RAID apparatus, controller of RAID apparatus and write-back control method of the RAID apparatus
US8364893B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2008 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | Feb 21, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/123
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A RAID apparatus includes a plurality of recording devices, a first adaptor connected to a first interface which is connected to a high-level apparatus, a controller for controlling processing of data transmitted by the high-level apparatus, and a second adaptor that connects to a second interface connected to a plurality of recording devices. The controller has a first memory area in which said data are stored, a second memory area used for a write-back of the data in said plurality of recording devices, a write-back information control unit controlling a write-back type of data stored in the first memory area and a usage state of the second memory area, a write-back data determination unit for determination of data to be written-back based on the write-back information, and a write-back execution unit for executing a write-back of the data to be written back on the plurality of recording devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.