According to one embodiment, a system includes a portable device, a plurality of second image capturing units, an extraction unit, a calculation unit, and a specifying unit. At a later time, after a potential change to the first zone configuration data of the storage area network, the agent generates a checksum value based on current zone configuration data presently used to configure the zone in the storage area network. For each of the scenarios presented during a training episode, the user may respond by selecting one or more possible decision options, each relating to a different way to address the situation presented in the scenario. The shim also includes first and second side walls as well as a pair of opposed tabs. A slide portion is provided to close the slots.