Methods and systems for manufacturing composite components, including asymmetric composite components, are disclosed. Each time of the day compartment has pictorial indicia which readily signifies a specific respective time of the day. The device further including a pressure relief valve for selectively relieving pressure from a tank, the valve including an over-pressure opening seal biased by a first pressure bias means against a pressure valve seat associated with the over-pressure opening. Thus methods for injecting or introducing various substances into the enclosure of a disk drive are a significant aspect of data security. When a snoop process is required, a snoop unit is used to reference the snoop control storage in order to identify, having regard to one or more properties of the access request, the snoop scheme to be employed to perform the snoop process.