Storage control apparatus and control method thereof
US7421538B2 · kind B2 · utility
8Cited by
18References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2003 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Sep 19, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0866
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage control apparatus controls physical disks according to the host access using a pair of controllers, while mirroring processing is decreased when data is written to a cache memory and high-speed operation is enabled. The mirror management table is created with allocating the mirror area of the cache memory of the other controller, and acquisition of a mirror page of the cache memory of the other controller is executed referring to the mirror management table without an exchange of mirror page acquisition messages between the controllers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.