Storage system and data restoration method thereof
US7594137B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2006 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | Jun 13, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1456
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This storage system includes a first storage sub system having a first logical volume where a first data area is dynamically allocated to each prescribed area, and which stores data transmitted from a host computer in the first data area, and a second storage sub system having a second data area for backing up the first logical volume; wherein the first storage sub system includes: a first management unit for managing the status of the first data area allocated to each of the areas of the first logical volume; a transfer unit for transferring the data stored in the first data area allocated to each of the areas of the first logical volume to the second storage sub system; and a restoration unit for restoring the first logical volume based on the status of the first data area managed by the first management unit and/or the data transferred from the second storage sub system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.