VMware: Enable/Disable TechSupportMode in ESXi 4.0

You can disable or re-enable Tech Support Mode on a ESXi 3.* or 4.0 host by modifying Advanced Configuration parameters.

In ESXi 4.1 you can change the startup services to automatic/manual/disabled or manual start/stop the service.

On the ESXi 4.0 host you need to login with your VI Client direcly or via vCenter server and select your ESXi host.

  1. Click the Configuration tab;

  2. Click the Advanced Settings link;

  3. Click VMkernel in the left-hand pane;

  4. In the list of parameters, deselect VMkernel.Boot.techSupportMode;


Note: Reboot the host before the setting takes effect!


Sander Daems is founder and author of this blog and working as a Lead (Sr.) Consultant by UNICA ICT Solutions. Sander has 15+ years experience in IT, primary focus: virtualization and modern worksplace.

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