Patent ID: 6209002
Filing Date: 2001-03-27
Classification: G06F,Y10S

Abstract:
A data storage facility for being interposed between means for altering data and means for receiving data in a data processing system, said data storage facility comprising:A) a first data store for connection to the data altering means for receiving data therefrom,B) a second data store,C) first and second change recording means for identifying the location of any change that the data altering means makes in said first data store,D) first operating means for establishing a first operating mode during which said second data store receives data from said first data store according to the changes recorded in said first change recording means,E) second operating means for establishing a second operating mode for copying data from said second data store to the receiving means according to the changes recorded in said second change recording means that reflect the recorded changes in said first data store at the time the second mode is established.