Patent ID: 6397289
Filing Date: 2002-05-28
Classification: G06F

Abstract:
A disk control apparatus comprising:a control device for analyzing read/write commands transmitted from a plurality of host computers using different coding schemes, and recognizing a code conversion mode which indicates execution/inexecution of code conversion and a code conversion direction; and a code conversion device for performing code conversion for data to be read/write from/in a plurality of disk storage units using different coding schemes; and a registration table storing code conversion types indicating combinations of said host computers and said disk storage units; wherein said control device refers to said registration table to recognize the code conversion mode by specifying a combination of said host computer and said disk storage unit on the basis of an analysis result on a read/write command with a code conversion type from said host computer, and the code conversion type stored in said registration table comprises a host computer identifier, a disk storage unit identifier, a data transfer direction, and a code conversion mode.