Data Domain: Web UI not accessible after DD OS upgrade

Summary: Web UI not accessible after DD OS upgrade

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.

Symptoms

Web UI not accessible after DD OS upgrade Trying to get to the webpage and getting status 404 Not found.

 

/ddvar/log/debug/sm/em.info
===========================
06 Jul 2025 13:43:51,837 ERROR [main] sms_system_get_version: Error connecting to remote host: Mutual trust may have to be reestablished between Management Host [null] and [localhost].
06 Jul 2025 13:43:53,697 ERROR [main] sms_inventory_get_node_info: Error connecting to remote host: Mutual trust may have to be reestablished between Management Host [null] and [localhost].

Cause

Root CA, which is not expired, is no longer trusted. This prevents the PowerProtect DD System Manager (DDSM) from loading or successful login. 

The issue is not limited to the following DD OS versions:

  • DD OS 8.4
  • DD OS 8.3
  • DD OS 7.13.1.40

Resolution

Regenerate the Root CA of all Data Domains listed in the "Error connecting to remote host: Mutual trust may have to be reestablished between" log entries. Use instructions in the following article to regenerate the CA.

Data Domain: Web UI inaccessible Due to expired https certificates

Affected Products

DD OS 8.3, DD OS 8.4
Article Properties
Article Number: 000349145
Article Type: Solution
Last Modified: 24 Oct 2025
Version:  3
Find answers to your questions from other Dell users
Support Services
Check if your device is covered by Support Services.