Dynamic change management in an extended remote copy operation
US6088697A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1997 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Dec 18, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2094
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus, and article of manufacture for dynamic change management in an extended remote copy system. A primary data mover monitors changes made to a primary data volume resulting from write I/O operations, wherein the changes are reflected in a data structure maintained by the primary data mover. The primary data mover performs a multi-level analysis on the data structure to discard a portion of the changes therein, so that the changes that have been applied to a secondary data volume are discarded from the data structure and the changes that have not been applied to the secondary data volume are maintained in the data structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.