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    • 1. 发明授权
    • Data storage device and method
    • 数据存储设备及方法
    • US08078908B2
    • 2011-12-13
    • US12778386
    • 2010-05-12
    • Mihoko TojoHidefumi KobayashiYusuke OotaSatoshi HayashiKeiichi Umezawa
    • Mihoko TojoHidefumi KobayashiYusuke OotaSatoshi HayashiKeiichi Umezawa
    • G06F11/00
    • G06F11/1441G06F12/0866G06F21/77G06F21/805G06F21/81G06F2221/2143Y02D10/13
    • An apparatus includes a cache memory for storing user data and control information of the apparatus, a nonvolatile memory and a processor for executing a process including when the power failure occurs, saving the user data and the control information stored in the cache memory into the nonvolatile memory, when the power failure recovers, restoring the data stored in the nonvolatile memory into the cache memory, and erasing the data stored in the nonvolatile memory after restoring the data into the cache memory and when another power failure occurs during erasing the data stored in the nonvolatile memory, erasing the control information stored in the nonvolatile memory if the control information is remained in the nonvolatile memory and saving, into the nonvolatile memory, the updated control information stored in the cache memory and the user data which has been erased from the nonvolatile memory.
    • 一种装置包括用于存储用户数据和装置的控制信息的高速缓存存储器,非易失性存储器和处理器,用于执行包括何时发生电源故障的处理,将存储在高速缓冲存储器中的用户数据和控制信息保存到非易失性存储器中 存储器,当电源故障恢复时,将存储在非易失性存储器中的数据恢复到高速缓冲存储器中,以及在将数据恢复到高速缓冲存储器中之后擦除存储在非易失性存储器中的数据,并且当擦除存储在数据中的数据时发生另一次电源故障 非易失性存储器,如果控制信息保留在非易失性存储器中,则擦除存储在非易失性存储器中的控制信息,并将保存在高速缓冲存储器中的已更新控制信息和从该存储器中删除的用户数据保存到非易失性存储器中 非易失性存储器