Patent ID: 6715006
Filing Date: 2004-03-30
Classification: G06F

Abstract:
A disk time-sharing apparatus comprising:a disk apparatus having one or a plurality of disk drives; an input/output request unit for issuing an input/output request to said disk apparatus; an input/output scheduling unit for forming input/output groups obtained by grouping inputs/outputs to/from said disk apparatus in accordance with their kinds, defining an allocating time (quantum) during which each of said input/output groups can continuously use the disk apparatus, and in the case where requests for input/output are received from a plurality of input/output groups to the disk apparatus, sequentially switching said allocating time among the input/output groups which competed, and using the disk apparatus; and an allocating time control unit for fluctuating said allocating time in accordance with a degree of jam of the input/output processing requests of said input/output groups.