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My Dell PowerEdge sensor fails to validate disks and I can’t add it. What can I do?

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The SNMP Dell PowerEdge Physical Disk sensor does not work with some hard disks on the host. It shows the following error message:

The validation of at least one of the new objects failed because of the following:
Disk: Required field, not defined.
The object was not created.

Why does this error appear on some hosts? How can I solve this disk validation issue?

dell disk error error-messages poweredge prtg validation

Created on Oct 20, 2014 4:43:40 PM by  Gerald Schoch [Paessler Support]



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This article applies to PRTG Network Monitor 14 or later

Solving a Dell PowerEdge Physical Disk Validation Error

The SNMP Dell PowerEdge Physical Disk sensor monitors disks in PowerEdge servers using Dell OpenManage Server Administrator or iDRAC. This sensor type also needs the serial number of a particular disk to recognize it on the system to be able to monitor it. This is necessary because the order can change in the retrieved list of disks.

If the sensor cannot find a serial number on a disk in the system, you get the error message “The validation of at least one of the new objects failed because of the following: Disk: Required field, not defined.” for the sensor on this disk when you want to add it to PRTG.

Restart the PowerEdge Server

In this case shut down your PowerEdge server and restart it. The affected disks on the system should now provide the serial numbers so that the sensor can work as expected.

You can check if there are missing serial numbers with the free SNMP Tester. Run this tool on the PRTG probe system on which the PowerEdge sensor runs and execute an SNMP walk with the following base OID:

1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.7

If you see empty entries, for example, 1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.7.1 = "", the serial number is missing for this disk.


See Also

Created on Oct 20, 2014 4:55:36 PM by  Gerald Schoch [Paessler Support]

Last change on May 22, 2017 7:40:31 AM by  Erhard Mikulik [Paessler Support]



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FYI, I avoided having to restart the server by restarting the SNMP service. This resolved the validation issue.

Created on Apr 18, 2016 4:29:48 PM by  MannyL (0) 1



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Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.