According to one embodiment, a method is disclosed herein that includes creating a flashcopy of initial replica data, performing a recovery of the created flashcopy, and exporting the recovered flashcopy. In one implementation, the method includes determining whether the initial replica data has changed data, generating an updated flashcopy based on the determination, sequentially quiescing an export of the recovered flashcopy, switching the recovered flashcopy with the updated flashcopy, and exporting the switched flashcopy. In another implementation, the method includes determining whether to reexport a new flashcopy, creating a flashcopy of updated replica data, recovering the flashcopy of the updated replica data, exporting the current recovered flashcopy of the updated replica data, replacing the previously exported recovered flashcopy based on the exportation of the current recovered flashcopy, and deleting the previously exported recovered flashcopy based on the exportation of the current recovered flashcopy.

 
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> High-speed interface circuit for semiconductor memory chips and memory system including the same

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