Storage control device and data processing system
US8423741B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2011 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Nov 9, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0674
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage medium management part includes a stored data amount adjustment part that: stores a maximum data amount which the storage medium can store at the time of startup of a storage control device, and a stored data amount which is an initial stored amount, in a data amount storage part; upon receiving a write amount of a data in response to a write request, writes a new stored data amount calculated by adding the write amount to the already stored data amount, over the already stored data amount; calculates a free space by subtracting the stored data amount from the maximum data amount; determines a deletion amount of the data if the free space does not takes a value not less than a prescribed value; and writes a newly-calculated stored data amount calculated by subtracting the deletion amount from the stored data amount, over the stored data amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.