| 摘要 |
A storage device has access protection functions, enabling the resolution of problems occurring when, despite the fact that the actual access restriction state has changed, this change is not correctly transmitted to the host device (information processing device). The access control method of a storage device (1) permits reading a storage medium by means of a host device (2) control system, in which said control system is notified of the replacement of said storage medium when its access permission state has changed, without the physical removal of said storage medium from said storage device (1). <IMAGE>
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