System and method for rapid restoration of server from backup
US7353355B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2004 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | May 24, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1469
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A server is restored by creating an image of a local drive of a server; replacing a driver in the boot up procedure of the server, the replacement driver redirecting disk drive access requests from the local drive to the image; on-demand copying portions of the operating system needed for start up from the image to memory of the server; and copying a remainder of the image from the image to the local drive as a background process. The data is copied on-demand from the image to the local drive. The copying is performed over a network. The image is created on a different server connected to a network. The copying of the remainder of the image, after critical start-up data has been copied, is done based on a priority of a sector of the image being copied. A bitmap is created corresponding to sectors of the image, and the server decides whether to access a particular sector on the local drive or on the image based on the bitmap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.