Patent ID: 8799567

Claim:
A method for accessing files in a management system comprising a control device, a managed device, and a system management device between the control device and the managed device, the managed device comprising: a first operating system and a first file system, the control device comprising a second operating system and a second file system, the method comprising: simulating a physical storage device of the control device to the managed device via the system management device, so as to form a virtual storage device having the same data as the physical storage device in the managed device; outputting a request command to the system management device by the managed device via the first operating system of the managed device and not via the first file system of the managed device when the managed device accesses a file of the virtual storage device; and performing an access operation on the file in the physical storage device by the control device via a second operating system of the control device and not via second file system of the control device according to the request command.