检查系统时发现系统报错：
$errpt | head
BFE4C025 0529221011 P H sysplanar0 UNDETERMINED ERROR
查看对应的错误号，发现如下诊断信息：
$errpt -aj BFE4C025
……
Diagnostic Analysis
Diagnostic Log sequence number: 31453
Resource tested: sysplanar0
Resource Description: System Planar
Location:
SRC=\'#\'" />Description: Memory subsystem including external cache Predictive
Error, general. Refer to the system service
documentation for more information.
Additional Words: 2-030000F0 3-28EC0110 4-C13920FF 5-41000000
6-00811930 7-00000001 8-00A0008A 9-5600502A
Possible FRUs:
Priority: M FRU: 00P5773 S/N: YL1081315356 CCIN: 30D5
Location: U787B.001.DNW7118-P1-C9-C4)
……
由于可能是内存问题，查看一下具体的位置：
$lscfg -pv | grep -p DIMM
Memory DIMM:
Product Specific.(RT).......VINI
Flag Field..................XXMS
System Info Specific.(YL)...U787B.001.DNW7118-P1-C9-C4
Customer Card ID Number.....30D5
Serial Number...............YL1081315356
Part Number.................00P5773
FRU Number.................. 00P5773
Size........................2048
Version.....................RS6K
Physical Location: U787B.001.DNW7118-P1-C9-C4
怀疑是之前仅仅更换了一个2G的内存后，该组内存的配对偶尔会出现问题，查看内存：
$lsattr -El mem0
goodsize 32000 Amount of usable physical memory in Mbytes False
size 32000 Total amount of physical memory in Mbytes Fasle
更换了一组内存，貌似ok了，等待后续变化。
