Patent ID: 7694172
Filing Date: 2010-04-06
Classification: G06F

Abstract:
1. A data backup device comprising: a first table, a second table, an update management part configured to perform recording in said second table an identifier of updated portion of a first memory, a table rewriting part configured to perform rewriting said first table such that said first table identifies the portion of said first memory identified by said second table, a data copy control part configured to perform output of first data from the portion of said first memory identified by said first table, and a backup art configured to perform copying second data of said first memory to a removable recording medium to be stored to a second memory, wherein, said data copy control part is configured to perform said output of said first data via a communication line to a secondary device to be copied to said second memory, said update management part is configured to start said recording after said backup part performs said copying, said table rewriting part is configured to perform said rewriting after said storing of said second data to said second memory, and said data copy control part is configured to start said output after said table rewriting part performs said rewriting.