Disk array apparatus, bad sector repair method and repair program

摘要

PROBLEM TO BE SOLVED: To provide a disk array device and the like capable of effectively preventing deterioration of a response even when a medium error occurs.SOLUTION: A disk array device 1 includes: a plurality of disk drives 4a-4b for performing data input/output processing; and a disk array controller 3 for controlling data input/output processing for these disk drives. The disk array controller 3 includes: data input/output means 3a for performing data input/output request to each disk drive in response to data input/output request from a host device; a bad sector recording means 3b for, when abnormal termination occurs during data input/output in response to the data input/output request, storing a bad sector which is a sector where the abnormal termination has occurred, in storage means provided in advance; and bad sector repairing means 3c for performing repair processing for the bad sector after the termination of the data input/output.