System and method for rapid restoration of server from backup
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Apr 1, 2008
Grant Date -
N/A
app pub date -
Dec 28, 2004
filing date -
Dec 28, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
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