
4.2Power-On Self-Test Diagnostics
If POST detects a faulty component, it is disabled automatically, preventing faulty hardware from potentially harming any software. If the system is capable of running without the disabled component, the system boots when POST is complete. For example, if one of the processor cores is deemed faulty by POST, the core is disabled, and the system boots and runs using the remaining cores.
POST diagnostic and error message reports are displayed on a console.
4.2.1POST Test Coverage
The POST diagnostics include the following tests:
CPU Basic Test
CPU Functional Test
CPU
CPU
CPU
CPU
CPU L2 Cache UA Array Test
CPU L2 Cache UA Array Test
CPU Interrupt Handler
CPU IMMU Memory Management Unit
CPU DMMU Memory Management Unit
FPU (Data movement and functionality)
I/O Controller register access
I/O Controller PCI configuration access
Block Memory Test
Network Interfaces (register access and basic funtionality)
Modular Arithemetic Memory parity errors Test
SPU (Security Processing Unit) Tests
Chapter 4 Firmware and Blade Server Management |