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I can’t add Dell PowerEdge sensors to PRTG. What can I do?

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When I try to add an SNMP Dell PowerEdge sensor to PRTG, PRTG aborts the sensor deployment with an error message. Can you list the most common errors with Dell PowerEdge sensors and provide possible reasons and solutions?

debug dell error error-messages oid poweredge prtg sensor snmp

Created on Jan 25, 2016 3:25:38 PM by  Gerald Schoch [Paessler Support]



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This article applies to PRTG Network Monitor 14 or later

Common Errors when Using Dell PowerEdge Sensors

Before you add an SNMP Dell PowerEdge Physical Disk sensor or an SNMP Dell PowerEdge System Health sensor in PRTG to the target PowerEdge server, first please make sure you meet the requirements for these sensor types. You need OpenManage with SNMP enabled or iDRAC 7. Please see this article for details.

If you still encounter one the following common error messages, you can use our free SNMP Tester to walk specific OIDs. These OIDs depend on the sensor type and whether you query data via OpenManage or the iDRAC interface. The results of the SNMP walks can help to debug your issues with Dell PowerEdge monitoring.

If the SNMP walks run successfully but your PowerEdge sensors do not work, save the results (click Save Log to File underneath the run section in the SNMP Tester) and forward us these files when you open your support ticket about this case. Sending your walks directly with your support request helps us to help you faster!

Debug and Resolve PowerEdge Errors

Please look for the error message below that your SNMP Dell PowerEdge sensor shows and follow the according troubleshooting steps.


(1) Could not find any disk on this device. (code: PE188)

This means that there is no response from the target device. Please check the following:

  • Is SNMP enabled on the device you want to monitor? Check SNMP availability with an uptime test using the SNMP Tester. For more information, please see the SNMP Tester manual, section 3: Quick Start: Test SNMP with System Uptime Request and the Knowledge Base article My SNMP sensors don’t work. What can I do?
  • Is the OpenManage software correctly installed on the target server? In some cases a restart of the target server is required after the install of OpenManage.
  • Are the needed OIDs reachable on the target server? Please use the SNMP Tester and perform SNMP walks on the following OIDs:
    • Physical disk via OpenManage: 1.3.6.1.4.1.674.10893.1.20.130.4.1
    • Physical disk via iDRAC: 1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1

If the walks are successful but your PowerEdge sensors do not work, please save the log and send it to our support team.


(2) The validation of at least one of the new objects failed because of the following: Disk: Required field, not defined.

This means that PRTG received a reply so SNMP is most likely enabled but the serial number is missing for this disk. You will see a similar message in an existing sensor when a disk of the array has been replaced with a new disk that has another serial number.

  • Shut down your target server and restart it. The affected disks now might provide the serial numbers. Please see also the article My Dell PowerEdge sensor fails to validate disks and I can’t add it. What can I do?
  • Perform SNMP walks on the following OIDs to check if there are missing serial numbers:
    • Serial numbers via OpenManage: 1.3.6.1.4.1.674.10893.1.20.130.4.1.7
    • Serial numbers via iDRAC: 1.3.6.1.4.1.674.10892.5.5.1.20.130.4.1.7

If the walks are successful but your PowerEdge sensors do not work, please save the log and send it to our support team.


(3) Could not find any matching data on this device. (code: PE187)

If there is no response from the target device, check the following:

  • Is SNMP enabled on the device you want to monitor? Check SNMP availability with an uptime test using the SNMP Tester. For more information, please see the SNMP Tester manual, section 3: Quick Start: Test SNMP with System Uptime Request and the Knowledge Base article My SNMP sensors don’t work. What can I do?
  • Is the OpenManage software correctly installed on the target server? In some cases a restart of the target server is required after the install of OpenManage.
  • Are the needed OIDs reachable on the target server? Please use the SNMP Tester and perform SNMP walks on the following OIDs (two walks for both OpenManage and iDRAC):
    • System health (1) via OpenManage: 1.3.6.1.4.1.674.10892.1.300.10.1
    • System health (2) via OpenManage: 1.3.6.1.4.1.674.10892.1.200.10.1
    • System health (1) via iDRAC: 1.3.6.1.4.1.674.10892.5.4.300.10.1
    • System health (2) via iDRAC: 1.3.6.1.4.1.674.10892.5.4.200.10.1

If the walks are successful but your PowerEdge sensors do not work, please save the log and send it to our support team.

Created on Jan 25, 2016 3:30:02 PM by  Gerald Schoch [Paessler Support]

Last change on Oct 10, 2018 4:38:04 PM by  Gerald Schoch [Paessler Support]



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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.