Patent ID: 7490103
Filing Date: 2009-02-10
Classification: G06F,Y10S

Abstract:
1. A system for backing up data, the system comprising: a host computer configured to run an application, wherein the application generates data that is stored in a buffer of the host computer; a primary data storage configured to store the data generated by the application, wherein the data is copied from the buffer of the host computer to the primary data storage upon the occurrence of a specific condition; a data protection unit configured to monitor a state of the application and to generate a snapshot for the data stored in the primary data storage when the application is in a consistent state without suspending operation of the application to generate the snapshot, wherein the application generates state information to indicate the consistent state, and wherein the state information includes setting a specific bit to indicate to the data protection unit that the buffer has been flushed out to the primary data storage; and a secondary data storage configured to store the snapshot.