LEDs – These provide a quick visual notification of the status of the server and of some of the FRUs.
ILOM – This firmware runs on the service processor. In addition to providing the interface between the hardware and OS, ILOM also tracks and reports the health of key server components. ILOM works closely with POST and Oracle Solaris Predictive Self-Healing technology to keep the server running even when there is a faulty component.
POST – This utility performs diagnostics on server components upon server reset to ensure the integrity of those components. POST is configureable and works with ILOM to take faulty components offline if needed.
Oracle Solaris OS Predictive Self-Healing – This technology continuously monitors the health of the CPU, memory, and other components, and works with ILOM to take a faulty component offline if needed. The PSH technology enables servers to accurately predict component failures and mitigate many serious problems before they occur.
Log files and command interface – These provide the standard Oracle Solaris OS log files and investigative commands that can be accessed and displayed on the device of your choice.
The LEDs, ILOM, PSH, and many of the log files and console messages are integrated. For example, when the Oracle Solaris software detects a fault, it displays the fault, logs the fault, and passes information to ILOM, where the fault is logged.