Method and system for automated backup copy ordering in a time zero backup copy session
US5241670A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1992 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Apr 20, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0601
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method in a data processing system for generating a backup copy of designated datasets during concurrent execution of an application. Upon receiving a request for a backup copy, execution of an application is suspended. A dataset logical-to-physical storage system address concordance for the designated datasets is formed, and execution of the application is resumed thereafter. A resource manager is established to manage all input and output functions between storage subsystems, storage subsystem memory associated with each of the storage subsystems, and a temporary host memory during formation of the backup copy. Formation of the backup copy is accomplished on a scheduled or opportunistic basis by copying the designated datasets from the storage subsystems and then updating the address concordance in response to the copying. Application updates are processed during formation of the backup copy by buffering the updates, copying the affected uncopied designated datasets to a storage subsystem memory, updating the address concordance in response to the copying, and processing the updates. Designated datasets can also be copied to the temporary host memory in the event the number of …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.