Patent ID: 8869285

Claim:
A file server comprising: one or more computers configured with: a first operating system which is a virtual operating system; a second operating system configured to manage said first operating system; an inter-operating-system communications part which exchanges predetermined instructions including log information between said first operating system and said second operating system and which responds to said predetermined instructions; a log information producing part which generates failure information as said log information in said first operating system when a failure occurs; a first log transmitting part which transmits said log information that is generated in said first operating system from said first operating system to a first log management device via said first communications network; and a second log transmitting part which transmits said generated log information from said first operating system to said second operating system via said inter-operating-system communications part, and which transmits said log information from said second operating system to a second log management device via a second communications network which is separated from said first communications network, and which is coupled to said second operating system.