Information system, data transfer method and data protection method
US8281179B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2011 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | Mar 12, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2084
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Availability of an information system including a storage system that performs remote copy between two or more storage apparatuses and a host computer using such storage system is improved. A third storage apparatus including a third volume is coupled to a first storage apparatus, a fourth storage apparatus including a fourth volume is coupled to a second storage apparatus, the first and third storage apparatuses perform remote copy of copying data stored in a first volume to the third volume, the first and second storage apparatuses perform remote copy of copying data stored in the first volume to a second volume, and the third and fourth storage apparatuses perform remote copy of copying data stored in the third volume to the fourth volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.