Oracle Sun Netra T5440 Service Manual page 23

send email alerts of hardware failures, hardware warnings, and other events related to the server
or to ILOM.
The service processor runs independently of the server, using the server's standby power.
Therefore, ILOM firmware and software continue to function when the server operating system
goes offline or when the server is powered off.
Note - Refer to the Integrated Lights Out Management 2.0 Supplement for the Sun Netra T5440
Server for comprehensive ALOM CMT information.
Faults detected by ILOM, POST, and the Solaris Predictive Self-Healing (PSH) technology are
forwarded to ILOM for fault handling
In the event of a system fault, ILOM ensures that the fault LED is lit, FRU ID PROMs are
updated, the fault is logged, and alerts are displayed (faulty FRUs are identified in fault
messages using the FRU name).
ILOM Fault Management
FIGURE 1-7
The service processor detects when a fault is no longer present and clears the fault in several
ways:
Fault recovery – The system automatically detects that the fault condition is no longer
■
present. ILOM extinguishes the Service Required LED and updates the FRU's PROM,
indicating that the fault is no longer present.
Fault repair – The fault has been repaired by human intervention. In most cases, the service
■
processor detects the repair and extinguishes the Service Required LED. If the service
processor does not perform these actions, you must perform these tasks manually with the
clearfault or enablecomponent commands.
The service processor also detects the removal of a FRU, in many cases even if the FRU is
removed while the service processor is powered off (that is, if the system power cables are
unplugged during service procedures). This situation enables ILOM to know that a fault,
diagnosed to a specific FRU, has been repaired.
1.4 Using the Service Processor Firmware for Diagnosis and Repair Verification
(Figure 1-7).
Chapter 1 • Server Diagnostics 23