Symptoms

During the discovery of a PowerProtect DD system in PowerProtect Data Manager, the following error is displayed: ADS0005 Unable to discover protection storage PowerProtect DD System with address <n.n.n.n> because of com.emc.brs.common.resource.ResourceException: Error while executing /rest/v1.0/systemcode: 5468 statusCode: 400 Error: **** Authentication token is empty..

Cause

The error occurs when the login-max-active option on the Data Domain system is set too low, preventing PPDM from establishing a valid session and retrieving the required authentication token. To verify the current setting, run: # adminaccess option show login-max-active

Resolution

To resolve the issue: Log in to the Data Domain system using CLI.Increase the maximum number of active login sessions by running: # adminaccess option set login-max-active 100 Retry the discovery operation from the PPDM user interface. This change sets the login-max-active value to its default, allowing PPDM to successfully authenticate and complete the discovery process.

Support Cases