Patent ID: 6694475
Filing Date: 2004-02-17
Classification: G06F

Abstract:
A magnetic disk apparatus comprising a CPU for controlling analysis and transfer of data, communication means for receiving data from an external device, error-correcting information generating means for generating error-correcting information for the information in an error-correcting information generating unit including at least the data entered from said external device, magnetic disks for storing the data in the error-correcting information generating unit including the data from said external device and its error-correcting information, high-speed storage means for temporarily storing the data from said external device, and CPU bus for transferring data by connecting said CPU and each means, wherein the data entered from said external device is temporarily stored in the high-speed storage means, and when all data in the error-correcting information generating unit including the entered data is stored, data in the error-correcting information generating unit is transferred to said magnetic disks, said error-correcting information generating means eavesdrops on the data on said CPU bus such that when said data is transferred from said high-speed storage means to said magnetic disks via said CPU bus, said data is simultaneously transferred to said error-correcting information generating means via said CPU bus.