| 摘要 |
A structure for prohibiting a hard disc from shifting an active state with environmental problems is provided to avoid damages of an HDD or vanishing of its recording data. Whether data recording or reproducing is safely executed or not by making use of the hard disc is judged on a basis of information detected by a fall sensor, a temperature sensor, etc. If the judgment shows that safe data recording or reproducing is possible, the hard disc is shifted from a halt state to an active state. With this structure, the hard disc is prevented from shifting to active state with environmental problems of falling, a high temperature, humidity, or the like, so that damages of the HDD or vanishing of its recording data can be prevented.
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