Patent ID: 9191464
Filing Date: 2015-11-17
Classification: G06F,H04L

Abstract:
1. An apparatus being connectable to a computer and another apparatus managing a second file system, the apparatus comprising: a memory device configured to store a computer program, the computer program being configured to manage a first file system and to create a first structure information of the first file system based on a second structure information of the second file system received from the other apparatus, the second structure information linking among a plurality of file system objects existing in the second file system, the first structure information linking among a plurality of file system objects virtualizing the plurality of file system objects existing in the second file system, wherein, after starting the creating of the first structure information of the first file system and before completing the creating of the first structure information of the first file system, the apparatus is further configured, when receiving a request to modify a file system object at the first file system from the computer, to communicate with the other apparatus to update a file system object of the second structure information corresponding to the requested file system object and to update at least metadata of a file system object of the first structure information corresponding to the requested file system object, the file system object of the second structure information corresponding to the file system object of the first structure information.