Non-disruptive modification of data in-place
US7890459B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 2008 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Jun 4, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Non-disruptive modification of data in-place includes generating a copy of source data to a holding area. Data modification, such as encryption and/or other transformation process, may be performed on the source data in the source area while I/O operations of applications needing access to the source data is diverted to the data copy in the holding area. Updates to the data copy in the holding area from the continued I/O operations are tracked and the data updates are modified and transferred to the source area. Following successful modification of the source data, the I/O operations of the applications are re-directed back to the source area having the newly modified source data. The holding area may then be freed for subsequent use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.