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There are several different technologies that use the term file shadowing, but the intent of file shadowing within these technologies is to provide an exact copy (or mirror of a set) of data. For file shadowing to be effective, the shadow needs to exist in a separate physical location than the original data. Depending on the reasons behind the shadow operation, this location may be as close as a second harddrive in the same chassis or as far away as the other side of the globe. == References == *(N-level file shadowing and recovery in a shared file system ), United States Patent 5043876 *(Method of file shadowing among peer systems ), United States Patent 5276871 *(Database Shadow Files ) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「file shadowing」の詳細全文を読む スポンサード リンク
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