System and method for maintaining redundant storages coherent using sliding windows of eager execution transactions
US8140772B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2008 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | May 17, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/855
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method are disclosed for maintaining a plurality of data storages coherent with one another for redundancy purposes. The system includes a first data storage system and a second data storage system. The first data storage system is coupled to a first transaction processor for handling input and output transactions, and is coupled to a wide area network. The second data storage system is coupled to a second transaction processor for handling input and output transactions, and is coupled to the wide area network. The first transaction processor permits a first data write transaction to occur with respect to data within the first data storage system, and the second transaction processor permits a second data write transaction to occur with respect to data within the second data storage system. The first transaction processor permits the second data write transaction to occur with respect to data within the first data storage system only upon data consistency between the first and second data storage systems being validated. The second transaction processor permits the first data write transaction to occur with respect to data within the second data storage system only upo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.