简介
本文描述如何解决坏电压报警和低电压错误的问题。
问题：电压不佳和低电压错误
显示零电压的系统日志
[drvctrl 39008 error] [6/0/13445 <hwctrl:0> hwctrl_msgs.c:501] [software internal system syslog] [DRIVER CONTROLLER] Low voltage error at card 5 with voltage (CPU0 VTT) current 0.000000 V low 0.839000 V high 1.277000 V.
在电压部分显示卡信息报告“错误***警报**”
[local]# show card info 5
Card 5:
Slot Type : MMIO
Card Type : Management & 20x10Gb I/O Card
Daughter Cards : DC1 DC2
Operational State : Standby
Redundant With : 6
Framing Mode : Unspecified
Last State Change : Wednesday April 13 02:03:56 PDT 2016
Administrative State : Enabled
Card Lock : Locked
Reboot Pending : No
Upgrade In Progress : No
Card Usable : Yes
Single Point of Failure : n/a
Temperature : Normal
Voltages : Bad ***ALARM***
Card LEDs : Run/Fail: Green | Active: Off | Redundant: Green
Card LEDs : Master: Off
CPU 0 : Diags/Kernel Running, Tasks Running
Error ID Log : None
Boot Progress Log : None
请验证显示的显示卡诊断输出是否显示电压良好。
[local]# show card diag 5
Card 5:
Counters:
Successful Warm Boots : 4
(last at Wednesday April 13 02:03:51 PDT 2016)
Successful Cold Boots : 22
(last at Wednesday March 16 02:23:29 PDT 2016)
Total Boot Attempts : 38
In Service Date : Sat Feb 09 19:53:01 2013 (Estimated)
Status:
IDEEPROM Magic Number : Good
Boot Mode : Normal
Card Diagnostics : Pass
Current Failure : None
Last Failure : None
Card Usable : Yes
Last Reset Cause CPU 0: Hard Reset, ICH PLT Reset, ITP Reset
Current Environment:
Temp: DDR-C0D0 : 31.00 C (limit 95.00 C)
Voltage: 12V-A : 12.035 V
Voltage: CPU0 VTT : 1.106 V (min 0.839 V, max 1.277 V)
Voltage: 12V-B : 11.973 V
Voltage: 12V-C : 11.812 V
Voltage: 1.8V : 1.772 V (min 1.700 V, max 1.900 V)
Voltage: 1.5V : 1.483 V (min 1.430 V, max 1.580 V)
Voltage: CPU0 VCC : 0.918 V (min 0.712 V, max 1.417 V)
Voltage: 1.2V : 1.187 V (min 1.140 V, max 1.260 V)
Voltage: 3.3V : 3.283 V (min 3.140 V, max 3.470 V)
Voltage: 5V : 4.947 V (min 4.750 V, max 5.250 V)
Voltage: 2.5V : 2.497 V (min 2.380 V, max 2.630 V)
Voltage: 1.53V DDR0 : 1.520 V (min 1.282 V, max 1.606 V)
Voltage: 7.5V : 7.460 V (min 7.130 V, max 7.880 V)
Voltage: 1.1V IOH : 1.096 V (min 1.045 V, max 1.155 V)
Voltage: 3.3V Stdby : 3.302 V (min 2.970 V, max 3.630 V)
Voltage: 48V-A : 51.925 V
Voltage: 48V-B : 52.734 V
Current: 48V-A : 5.44 A
Current: 48V-B : 3.56 A
Airflow: Lower Left : 361 FPM
Airflow: Lower Middle : 369 FPM
解决方案
这不是硬件问题，请勿对卡RMA — 警报和系统日志错误具有误导性。 请参阅错误CSCuz23239。未正确清除由于电压错误而显示的错误/警报。 我们看到在之前的卡重置或关闭导致瞬态或竞争条件电压读取后，卡成功启动时出现问题。
解决方法：重新拔插卡（在重新拔插卡之前将卡置于备用状态，以避免流量影响）
将CSCuz23239修复到21.0及更高版本的软件中。
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