Storage control apparatus and storage control method
US9183136B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2012 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Feb 9, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0246
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage control apparatus comprises a storage unit, an association unit, and an execution unit. The storage unit stores association information showing multiple physical chunks which are configured in a physical address space of a nonvolatile semiconductor memory, multiple logical storage areas which are configured in a logical address space of the nonvolatile semiconductor memory, multiple logical chunks which are respectively associated with the multiple physical chunks, and an association between a logical storage area and a logical chunk. The association unit changes the association by changing the association information in accordance with a state of the nonvolatile semiconductor memory, and identifies based on the association information a physical storage area corresponding to a logical storage area specified in an input/output request from a computer. The execution unit executes the input/output request with respect to the identified physical storage area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.