Computer system, and backup method and program for computer system
US8661220B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2010 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Oct 20, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1458
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A backup is completed within a backup window designated by a user.When copying data in a first storage area, which is a backup target, to a second storage area, the capacity of a medium serving as a third storage area which is sufficient to complete a backup within the backup window, is calculated based on information about a differential bitmap describing an area in the second storage area to which the relevant data is copied from the first storage area, configuration information about a storage system where the storage areas are stored, and performance information about media constituting the storage areas; and differential data is copied using the second storage area and the third storage area; and the data written to the third storage area is copied to the second storage area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.