분산된 저장 구조를 지닌 파일에서의 파일 활용성 산정

Estimation of the Utilization of a File with Distributed Free Space

Analysis for the file with distributed free space such as a VSAM has been done. Birth and death process has been adopted to describe the status changes of control intervals in a VSAM file. File utilization is calculated as a function of the number of control intervals which contain different number of records in them. Effect of the control interval sizes and the loading factors are analyzed over the time horizon.