Computing system and backup method
US8583884B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2009 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Nov 11, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2076
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This invention proposes a computing system and a backup method capable of improving the backup efficiency. In accordance with copy requests from the host, the data written to the first logical volume in the first storage system is copied to the second logical volume in the first storage system, the data copied to the second logical volume is used to form a journal and is transferred to the second storage system asynchronously, with the writing of data from the host to the first logical volume. In the second storage system, the data transferred from the first storage system is written to the third logical volume in the second storage system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.