A network storage server system includes a distributed object store and a metadata subsystem. In an example embodiment, a conduit has a first channel and a second channel where the first channel is configured to conduct an inspiratory gas and the second channel configured to conduct an expiratory gas. An insert is sealingly received in the cooling jacket, the insert being made of a material having a greater heat resistance than that of the wall. The protective structures may be formed from a photopolymer material which has been at least partially cured, for example, by stereolithography processes. The mapping function can be retrieved and used to generate mapping coordinates for any product in the combinatorial library from the building block features associated with the product. All sets of identifying files from the plurality of computer servers are next gathered into a unique central violation database.