Reducing likelihood of data loss during failovers in high-availability systems
US7669080B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2007 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Jul 28, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2048
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, system, and computer program product for reducing likelihood of data loss during performance of failovers in a high-availability system comprising a primary system and a standby system are provided. The method, system, and computer program product provide for defining a halt duration, periodically determining a halt end time, halting data modifications at the primary system responsive to failure of data replication to the standby system, resuming data modifications at the primary system responsive to a last determined halt end time being reached or data replication to the standby system resuming, and responsive to the primary system failing prior to a previously determined halt end time, determining that a failover to the standby system will not result in data loss on the standby system with respect to the primary system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.