Method and apparatus for preventing journal loss on failover in symmetric continuous data protection replication
US8769336B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2011 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Jun 27, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/855
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In traditional journal based replication environments, the journal is lost on failover. However, example embodiments of the present invention overcome this and other deficiencies by preserving a journal in a symmetric continuous data protection environment. Therefore, example embodiments of the present invention provide a method, an apparatus, and a computer program production for preserving a journal in a symmetric continuous data protection environment. The method comprises maintaining a journal in a journal-based replication environment comprising a production volume at a production site and a replication volume at a replication site and, after detecting a failover event, symmetrically preserving the journal after failover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.