Use serial numbers to track inventory. Oracle embeds serial numbers in firmware on option cards and system mother boards. You can read these serial numbers through local area network connections.
You can also use wireless radio frequency identification (RFID) readers to further simplify asset tracking. An Oracle white paper, How to Track Your Oracle Sun System Assets by Using RFID is available at: http://www.oracle.com/technetwork/articles/systems-hardware-architecture/o11-001-rfid-oracle-214567.pdf