Patent ID: 6393511
Filing Date: 2002-05-21
Classification: G11B

Abstract:
A computer system optimized to provide high data storage capacity without data access performance degradation, said computer system comprising:a host computer having a plurality of I/O slots; an adaptor for facilitating communication with said host computer, wherein said adaptor is connected to one of said plurality of I/O slots of said host computer; and a direct access storage device, coupled to said adaptor, that includes; a housing; a rotatable spindles; a motor within said housing for rotating said rotatable spindle; at least one disk fixedly mounted to said rotatable spindle, a first disk surface of said at least one disk having a first track density and a second disk surface of said at least one disk having a second track density, wherein said second track density is higher than said first track density; a plurality of heads each containing a transducer to read and write data from and to said at least one disk during rotation thereof; and a control circuit for controlling said plurality of heads.