Storage device and method for data sharing

摘要

In a computer system including a disk subsystem (80) having channel interface (71) compatible to a count-key-data format and a SCSI interface (61) compatible to a fixed length data format, the disk subsystem (80) is connected to a CPU (10) controlled by an open system operating system (40) through the SCSI interface (61), and connected to an other CPU (11) controlled by a main frame operating system (50) through the channel interface (71). The CPU (10) is provided with a CKD record access library (35) and a VSAM access library (30) which accesses in a FBA format the VSAM record stored by the other CPU (11) in a CKD format in the disk subsystem (80) and allows the access by an application program (20) of the CPU (10) as a VSAM record based on VSAM control information. <IMAGE>