Warning and Alarm Threshold Values (in Volts) for Enhanced PDU of Oracle Big Data Appliance

Asset ID:	1-71-1987582.1
Update Date:	2017-06-01
Keywords:

Solution Type Technical Instruction Sure

Solution 1987582.1 : Warning and Alarm Threshold Values (in Volts) for Enhanced PDU of Oracle Big Data Appliance

Applies to:

Big Data Appliance X4-2 Hardware - Version All Versions and later
Linux x86-64

Goal

If our Oracle Big Data Appliance rack has enhanced PDU, we have to also set the following two parameters (in volts) for each phase of the input (Refer to https://docs.oracle.com/cd/E19844-01/html/E23956/z40003081403496.html )

Warning – the minimal nominal operating voltage.
Alarm – the minimal allowable operating voltage.

What values (in Volts) should we set as the Warning and Alarm threshold parameter in fact ?

Solution

The Warning and Alarm threshold values (in Volts) which you should set depends on the PDU type in the Rack and datacenter voltage.

Select your PDU in the following table, then set the Warning and Alarm threshold.

Type and Datacenter voltage	Warning Threshold	Alarm Threshold
Single Phase, Low-Voltage, Datacenter L-L Voltage = 200V	190V	180V
Single Phase, Low-Voltage, Datacenter L-L Voltage = 208-240V	200V	180V
Three Phase, Low-Voltage, Datacenter L-N Voltage = 100V	95V	90V
Three Phase Low-Voltage Datacente L-N Voltage = 110-127V	100V	90V
Single or Three Phase, High-Voltage Datacenter L-N Voltage = 220V	210V	180V
Single Phase or Three Phase, High-Voltage Datacenter L-N Voltage = 230-240V	220V	180V

Note: Oracle Enhanced PDUs measure the correct voltage when connected to a wye TN power system.
Using any other power system type (such as IT or TT power system) might lead to incorrect voltage measurements.
Therefore, you should set the Warning Threshold and Alarm Threshold values above only when connected to a wye TN power system.

Note: For the other thresholds, refer to "Monitoring the PDU Current" in Oracle Big Data Appliance Owner's Guide http://docs.oracle.com/cd/E55905_01/doc.40/e55796/maintenance.htm#BIGOG232 .

References

<BUG:20480102> - VOLTAGE THRESHOLD VALUES REQUIRED FOR ENHANCED PDU

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