Storage apparatus and data management method
US9904687B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 13, 2013 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | May 20, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/815
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a storage apparatus that executes de-duplication processing. Specifically, a storage apparatus includes a storing apparatus configured to provide a first storage area and a second storage area and a control unit. The control unit determines, on the basis of a result of comparison of a compression ratio of compressed data with a threshold, whether first duplication determination for determining whether data same as the data compressed without being stored in the first storage area is stored in the second storage area is executed or second duplication determination for determining whether data same as the data compressed after being stored in the first storage area is stored in the second storage area is executed. Further, the control unit changes the threshold on the basis of a state of the storage apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.