| 摘要 |
A method for optimizing the location of files stored in one or more geographically distributed storage nodes, includes: storing a second data file in a second storage node, wherein the second data file is an identical copy of a first data file stored in a first storage node; determining if there is sufficient demand for the second data file stored in the second storage node; and if it is determined that there is insufficient demand for the second data file from the second storage node, deleting the second data file from the second storage node.
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