COMPUTER SYSTEM

摘要

In a computer system having a host system including a plurality of disk devices, a CPU, a main memory and a disk control circuit for controlling the disk devices, a host CPU executes a program unit to generate intermediate data for parity generation and holds it in a data holding unit to asynchronously conduct a data write process and a parity write process. A unit for generating parity and a unit for transferring data operate without the intervention of the CPU in accordance with a command issued by the program unit executed by the host CPU.