Abstract
Data recovery technology of the hard disk drives (HDDs) is important, because the HDDs may be sometimes troubled by unfortunate causes. However, it has been almost impossible to recover data from crushed HDDs. In this study, the data recovery method was studied by the tape cleaning of wear particles on the magnetic disk surface by the head-disk crush. The "process condition of tape cleaning for disk surfaces with the scratch by the head-disk crush was determined and the head flyability was compared on the disks with and without the tape cleaning. Finally, the data recovery was performed and confirmed the efficiency of the tape cleaning process for the crushed disks.