Once you have finished Installing  and Configuring the Management Pack, check theCollection StateandCollection Statusfor the adapter instance on theSolutionspage. If they show asNot Collecting orNo Data Receiving, respectively, the following troubleshooting topics can help you diagnose and correct common problems with your adapter instance.

Test Connection Errors

When Creating an Adapter Instance, click Test Connection after entering all of your configuration settings to ensure VMware Aria Operations can connect to the specified host.

The following errors are possible:

Ex Uno Error: property_metric_present

This appears when properties were requested but not returned. This isn't necessarily a problem because some properties might not have values depending on the system configuration.

Ex Uno Error: performance_metric_gathering

This appears along withunexpected status code 422 from HTTP responsewhen requesting unsupported performance metrics.

Adapter and Collector Log Files

You can review adapter errors in the adapter and collector log files, which can be viewed in the VMware Aria Operations UI or in an external log viewer.

  • Adapter log files are located in the $VCOPS_BASE/user/log/adapters/DellEMCUnityAdapter/ folder.

  • Collector log files are located in the $VCOPS_BASE/user/log/ folder.

To set the base log level for the collector in VMware Aria Operations:

  1. Navigate to Administration>Logs.

  2. Expand the PRIMARY folder, then select the COLLECTOR folder.

  3. Click the Edit Properties icon.

  4. In the Root logger level drop-down menu, select the desired option.

  • The default logging level is warning.

  • To troubleshoot issues, set the logging level to info.

  • To view detailed messages, including micro steps, queries, and returned results, set the logging level to debug. 


If you set the logging level to debug, log files can become large very quickly. Set the logging level to debug only for short periods of time.

For more information about viewing log files and modifying levels, refer to the VMware Aria Operations online help.