3Par 20000 node6的ps0和ps1同时报device failure

3par 20000

3par 20000 node6的ps0和ps1同时报device failure：

checkhealth：

Component -Identifier- ----------------Detailed Description-----------------
Node node:6 Environmental factor PS0 12.00V is DEVICE FAILURE
Node node:6 Environmental factor PS0 AmpIn is DEVICE FAILURE
Node node:6 Environmental factor PS0 Current is DEVICE FAILURE
Node node:6 Environmental factor PS0 Inlet Temp is DEVICE FAILURE
Node node:6 Environmental factor PS0 Temp is DEVICE FAILURE
Node node:6 Environmental factor PS0 VoltIn is DEVICE FAILURE
Node node:6 Environmental factor PS1 12.00V is DEVICE FAILURE
Node node:6 Environmental factor PS1 AmpIn is DEVICE FAILURE
Node node:6 Environmental factor PS1 Current is DEVICE FAILURE
Node node:6 Environmental factor PS1 Inlet Temp is DEVICE FAILURE
Node node:6 Environmental factor PS1 Temp is DEVICE FAILURE
Node node:6 Environmental factor PS1 VoltIn is DEVICE FAILURE  

但shownode ps正常：

因为shownode显示两个电源正常，所以一开始怀疑是node6通过管理总线无法正确获取ps状态信息，尝试重启nemoe tool，重启node6，都没有解决问题。后来更换node6也没有解决。

通过nemoe tool的日志，看到有如下报错：

PowerSupply Load Sharing FAIL: PS0=432W PS1=20W

提示两个ps的负载不均衡，ps0是432W,而ps1只有20W,正常两个平均在200多W是比较正常的。

由于ps1的输出功率只有20W,所以怀疑ps1有问题， 更换ps1后问题解决。