FILE SERVER, STORAGE APPARATUS, AND DATA MANAGEMENT METHOD

摘要

A file server coupled to a client terminal via a network includes a storage unit for storing received files and a control unit for controlling writing or reading of the files to or from the storage unit, wherein the control unit: performs deduplication by deciding one of files with the same content, which are stored in the storage unit, as a clone source file, and deciding another file as a clone file, which refers to data of the clone source file; and appends data to the clone source file in accordance with an update instruction for the clone file from the client terminal.

主权项

1. A file server coupled to a client terminal via a network, comprising:
a storage unit for storing received files; and a control unit for controlling writing or reading of the files to or from the storage unit, wherein the control unit: performs deduplication by deciding one of files with the same content, which are stored in the storage unit, as a clone source file, and deciding another file as a clone file, which refers to data of the clone source file; appends data to the clone source file in accordance with an update instruction for the clone file from the client terminal, and: wherein when data of the clone file is updated in accordance with the update instruction, manages only difference data of the clone file in a case of an update not including appending of data, and appends data to the clone source file in a case of an update including additional writing of the data.