Run POST in maximum mode to detect system faults. See Run POST in Maximum Mode.
In this syntax, c = the core number, s = the strand number.
Warning and informational messages use the following syntax:INFO or WARNING: message
In the following example, POST reports a memory error at FB-DIMM location /SYS/MB/CPU0/CMP0/BR1/CH0/D0. The error was detected by POST running on core 7, strand 2.
Example 7 show Command Output
7:2> 7:2>ERROR: TEST = Data Bitwalk 7:2>H/W under test = /SYS/MB/CPU0/CMP0/BR1/CH0/D0 7:2>Repair Instructions: Replace items in order listed by 'H/W under test' above. 7:2>MSG = Pin 149 failed on /SYS/MB/CPU0/CMP0/BR1/CH0/D0 (J792) 7:2>END_ERROR 7:2>Decode of Dram Error Log Reg Channel 2 bits 60000000.0000108c 7:2> 1 MEC 62 R/W1C Multiple corrected errors, one or more CE not logged 7:2> 1 DAC 61 R/W1C Set to 1 if the error was a DRAM access CE 7:2> 108c SYND 15:0 RW ECC syndrome. 7:2> 7:2> Dram Error AFAR channel 2 = 00000000.00000000 7:2> L2 AFAR channel 2 = 00000000.00000000
Perform further investigation if needed.
If POST detects a faulty device, the fault is displayed and the fault information is passed to the service processor for fault handling. Faulty FRUs are identified in fault messages using the FRU name.
The fault is captured by the service processor, where the fault is logged, the Service Required LED is lit, and the faulty component is disabled. See Fault Detected by POST.
In this example, /SYS/MB/CPU0/CMP0/BR1/CH0/D0 is disabled. The system can boot using memory that was not disabled until the faulty component is replaced.
Note - You can use ASR commands to display and control disabled components. See Disabling Faulty Components.