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The authors present new improved methods for detecting latent sector faults in a disk subsystem as caused by media deterioration of the disk magnetic storage material. In case of media deterioration on the rarely accessed sectors, a latent disk fault may remain undetected for a long time. An adaptive algorithm is proposed to utilize the idle time of the disk for scanning commonly used SCSI disks.>
Kari et al. (Tue,) studied this question.