| 摘要 |
A file access processor, which accesses a storage unit storing a plurality of files therein based on an access request from a request source, according to the present invention has a mirroring relation storage unit in which mirroring relation information is stored, wherein the mirroring relation information includes a mirroring attribute value indicating whether or not each file is to be mirror-accessed and, when the file is to be mirror-accessed, mirroring file information indicating a mirroring file corresponding to the file; and a file access processing unit which references the mirroring relation information based on the access request and accesses the storage unit.
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