Integrated Lights-Out 3 technology

4
 monitors the state of the replaceable fans in the server chassis, this includes the area cooled by each
fan and current fan speeds
 monitors the temperatures at sensors in various locations in the server chassis, including the processor,
to maintain the location temperature below the caution threshold
 detects the presence and monitors the condition of installed power supplies and Voltage Regulator
Modules (VRM), to ensure they are correctly installed and provide the longest available uptime
 detects the available processor slots, the type of processor installed in the slot, a status of the processor
subsystem, and if available, installed processor speed in MHz and cache capabilities
 detects the available memory slots and the type of memory, if any, installed in the slot
 detects the MAC addresses of the integrated NICs, this does not display add-in network adapters
 provides a record of significant events including a server power outage, server reset, unauthorized
login attempts, successful or unsuccessful browser and Remote Console logins, power cycle events, clear
event log actions, and certain configuration changes, such as creating or deleting a user
Figure 1: Simplified block diagram of iLO 3 architecture
Firewall logic
The firewall and bridge logic lets iLO 3 control the flow of information between the server and the
management console. It protects against unauthorized access through the system PCI interface, and it
shields sensitive information that may be stored in the memory or firmware. Refer to the
“http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00212796/c00212796.pdf”
paper for more information about the firewall and bridge logic.