IB Switches: HARDWARE FAULT: Voltage non-critical threshold breached Component Name: /SYS/MB/V_2.5V, Threshold Value: 2.3868
(Doc ID 1512581.1)
Last updated on AUGUST 29, 2019
Applies to:Oracle Exadata Hardware - Version 220.127.116.11 and later
Sun Datacenter InfiniBand Switch 36 - Version Not Applicable to Not Applicable [Release N/A]
IB switches reports following alerts when voltages gone below threshold Value.
(this isssue is applicable to the infiniband switches in all versions of the exadata/exalogic)
HARDWARE FAULT: Voltage non-critical threshold breached. Component Name: /SYS/MB/V_2.5V, Threshold Value: 2.3868
HARDWARE FAULT: Voltage non-critical threshold breached. Component Name: /SYS/MB/V_1.8V, Threshold Value: 1.6975
check the frequency of these messages, if these messages are not frequent and it's non-critical threshold breached, probably can be ignored.
Check the ILOM snapshot for mentioned component
type = Voltage
ipmi_name = MB/V_2.5V
class = Threshold Sensor
value = 2.480 Volts
upper_nonrecov_threshold = 2.878 Volts
upper_critical_threshold = 2.679 Volts
upper_noncritical_threshold = 2.586 Volts
lower_noncritical_threshold = 2.387 Volts
lower_critical_threshold = 2.282 Volts
lower_nonrecov_threshold = 2.083 Volts
alarm_status = cleared
Starting Voltage test:
Voltage ECB OK
Measured 3.3V Main = 3.27 V
Measured 3.3V Standby = 3.35 V
Measured 12V = 11.97 V
Measured 5V = 5.04 V
Measured VBAT = 3.06 V
Measured 2.5V = 2.54 V
Measured 1.8V = 1.79 V
Measured I4 1.2V = 1.22 V
Voltage test returned OK
if you see these message frequently then collect below commands output from switches
This document provides an idea when to ignore these alerts and if these messages are very frequent and what data need to be collected.
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