EXTERNAL STORAGE DEVICE AND DATA STORING METHOD FOR THE EXTERNAL STORAGE DEVICE

摘要

The present invention has the differences in that the external storage device has at least a hard disk drive and at least a nonvolatile memory logically integrated into a storage media through a low level of a system associated with the external storage device, measures the environmental temperature and measures continuously and records if a vibration is generated according to a time period, and selectively stores the data into the hard disk drive or the nonvolatile memory. By means of the above technique, the present invention may provide the efficacy of exemption of effects from unceasing vibrations and unstable operational temperature of the hard disk drive under a mobile environment.

主权项

1. An external storage device, comprising:
at least a hard disk drive (HDD); at least a nonvolatile memory; a measuring module, having a temperature sensor and a three-axis gravity sensor, measuring an environmental temperature through the temperature sensor, recording a vibration generated according to if a speed or a displacement detected by the three-axis gravity sensor are larger than or equal to a preset value, respectively, and recording continuously if the vibration is generated with time; a request module, receiving a data storing request from an external operating system; a determination module, determining if the environmental temperature is larger than or equal to a preset temperature, respectively, when the request module receives the data storing request, and determining if a number of the generated vibration within a preset time period is larger than 0; and an integration and storing module, logically integrating the hard disk drive and the nonvolatile memory into a single storage media through a low level driver, and storing a data corresponding to the data storing request selectively to one of the hard disk drive and the nonvolatile memory according to a determination result of the temperature and vibration.