Patent ID: 7702786

Claim:
A method for taking a resource offline in a network performed by a computer-readable medium storing a computer program product used by a programmable computer, the method comprising the steps of: receiving a request from a control unit embodied in a resource to take said resource offline, said control unit comprising a fibre channel node port (N_PORT) in communication with a fibre channel network; completing channel programs for a host in progress on said resource; returning control unit busy status to new commands and control functions while completing the channel programs; initiating a fibre channel N_PORT logout for each remote N_PORT logged into said N_PORT by sending a fibre channel N_PORT logout extended link service (LOGO ELS) to said each remote N_PORT; receiving a fibre channel accept extended link service (ACC ELS) from said each remote N_PORT logged into said N_PORT; and taking said resource offline after each ACC ELS is received from said each remote N_PORT logged into said N_PORT.