HP StorageWorks EVA Web-based Operator Control Panel 1.0 user guide (5697-7492, July 2008)

WorldWideName(WWN)
A World Wide Node Name (WWN) is a globally unique 64-bit identier assigned to each device in
a Fibre Channel storage area network. WWNs are typically displaye d as four-character h exadecimal
groups. Exampl
e: 3600-5B64-C92E-2EC1.
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EVA storage system concepts