Ransomware attackers specifically target and attempt to destroy backup systems to increase the probability of payment. Hardening your system is critical. Please ensure you have reviewed your platform security using the Security Hardening Checklist
Cohesity

COHESITY Documentation

Explore our documentation to get started, discover products & new features, access troubleshooting guides, register sources, platforms support.

Products
Data Security Alliance
Visit Cohesity.com
Demos
Support
Blogs
Developers
Partner Portals
Cohesity Community
© 2026 Cohesity, Inc. All Rights Reserved.
Terms of Use|
Privacy Policy|
Legal|
  1. Home
  2. NetBackup™ for VMware Administrator's Guide
  3. Troubleshooting VMware operations
  4. Troubleshooting the adding of VMware servers
NetBackup™ for VMware Administrator's Guide

Troubleshooting the adding of VMware servers

Table: Errors adding VMware servers

Issue

Explanation

Virtualization server credential validation fails.

This error occurs when the NetBackup primary server is in a DNAT or a similar setup can access only a few specified NetBackup hosts (PROXY_SERVERS).

The credentials validation occurs in the following order:

  • The auto-discovered discovery host is used to access the virtualization server.

  • If the autodiscovery does not find any information about the virtualization server on the discovery host, the NetBackup primary server is used.

Workaround: When you add the virtualization server credentials, select the proxy server that has access to the virtualization server as the backup host for validation.

Note:

Adding or updating VMware credentials also automatically starts the discovery of the VMware server. When backup host information is provided in the request, it is used to perform validation of credentials as well as for performing the discovery.

Unable to obtain the list of trusted Certificate Authorities.

This error might occur when VMware server credentials are added, updated, or validated. It occurs if the environment is configured to enabled communication between NetBackup (primary server, media server, or client) and vCenter, ESX, or any other VMware entity using authenticated certificates.

Workaround: Ensure that certificates are installed and are valid.

Feedback

Was this page helpful?
Previous

Troubleshooting the restore of VMware and restores of files

Next

Troubleshooting the browsing of VMware servers

Feedback

Was this page helpful?