System information summary, Fans – HP Integrated Lights-Out User Manual
Page 79
Using iLO 2 79
System Information Summary
System Information displays the health of the monitored system. Many of the features necessary to operate
and manage the components of the HP ProLiant server have migrated from the health driver to the iLO 2
microprocessor. These features are available without installing and loading the health driver for the
installed operating system. The iLO 2 microprocessor monitors these devices when the server is powered
on during server boot, operating system initialization, and operation. Monitoring continues through an
unexpected operating system failure. To access System Information, click System Status>System
Information. The System Health Summary tab appears. System Information also displays the following
embedded health tabs: Fans (on page
), Temperatures (on page
), Power (on page
), Processors
), Memory (on page
), and NIC (on page
The Summary tab displays the state of monitored host-platform subsystems status at a glance, summarizing
the condition of the monitored subsystems, including overall status and redundancy (ability to handle a
failure). The subsystems can include fans, temperature sensors, power supplies, and voltage regulator
modules.
•
Fans—Displays the state of the replaceable fans in the server chassis. This data includes the area
that is cooled by each fan and current fan speeds.
•
Temperatures—Displays the temperature conditions monitored at sensors in various locations in the
server chassis, and the processor temperature. The temperature is monitored to maintain the location
temperature below the caution threshold. If the temperature exceeds the caution threshold, the fan
speed is increased to maximum.
•
VRMs—Displays VRM status. A VRM is required for each processor in the system. The VRM adjusts
the power to meet the power requirements of the processor supported. A failed VRM prevents the
processor from being supported and should be replaced.
•
Power Supplies—Displays the presence and condition of installed power supplies.
o
OK—Indicates that the power supply is installed and operational.
o
Unpowered—Indicates that the power supply is installed, but not operational. Verify that the
power cord is connected.
o
Not present—Indicates that the power supply is not installed. Power is not redundant in this
condition.
o
Failed—Indicates that the power supply should be replaced.
To access the Summary tab from other areas of the iLO 2 interface, click System Status>System
Information>Summary.
Fans
iLO 2, in conjunction with additional hardware, controls the operation and speed of the fans. Fans
provide essential cooling of components to ensure reliability and correct operation. Fan location,
placement, design and speed control take into account various temperatures monitored throughout the
system to provide appropriate cooling with minimal noise levels.
Fan operation policies might differ from server to server based on fan configuration and cooling
demands. Fan control takes into account the internal temperature of the system, increasing the fan speed
to provide more cooling, and decreasing the fan speed if cooling is sufficient. In the unlikely event of a
fan failure, some fan operation policies might increase the speed of the other fans, record the event in the
IML, and turn LED indicators on.