Method and system for generating and restoring a backup image

Details Method and system for generating and restoring a backup image Method and system for generating and restoring a backup image

2010-05-03

2011-10-25

To, Baoquoc (Department: 2162)

Data processing: database and file management or data structures

File or database maintenance

Database backup

C707S645000, C707S646000, C707S647000, C707S648000, C707S649000, C707S650000, C707S651000, C707S652000, C707S653000

Reexamination Certificate

active

08046332

ABSTRACT:
A method and system for generating and restoring a backup image are disclosed. A server receives a request, which includes a backup path, to generate a backup image. The server generates a backup image offset map that indicates a relative location where a file is stored in the backup image before file data has been written to the backup image. The server stores the backup image offset map in a portion of the backup image on a storage device. The backup image offset map comprises an array having a number of elements equal to a number of inodes on a file system that hosts a backup path, an element of the array representing an inode on the file system, and indicates the relative location where a file that is associated with a number of the inode is stored in the backup image.

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