Tag: VMware

ERR AGENT ERR MAX SESSIONS

When working with VMware Horizon VDI systems, you may notice the above error while trying to load the VDI system. This can happen if the old agent version is left with obsolete registry keys. In order to fix the issue we need to flush those registry keys, followed by agent reinstallation. This involves really simple 5 steps. 

Step 01: Download any Uninstaller (we have used Revo portable)

Step 02: Uninstall the Horizon agent version (HAI)

Step 03: Reinstall the Horizon agent version (HAI)

Step 04: Execute “Reset Agent Pairing” from the Horizon admin panel

Step 05: Reboot the VDI system and confirm the status (Online/Offline).

Horizon DaaS Service Center resource allocation – the correct way

Once you are done with the VMware Horizon DaaS installation at the Service Provider side, you will be presented with the DaaS Service Center.

The service center enables you to assign compute resources and managers such as vCenter servers. Single vCenter configuration is not supported starting with DaaS 9.1.x, so always make sure to provision 2 more vCenter servers. You may simply add vCenters through Add Host Manager wizard. 

You can manage compute resources by expanding the Compute Resources tab on the Resources page. 

The Compute resource role can be Active, Reserved, or Standby. These options are described in the following table. This is one of the most important parameters on this page.  

Compute resource role Purpose / Usage
Active Compute resource that is actively hosting virtual desktops. All the tenant VDIs are being provisioned.
Reserved Not used for provisioning desktops. This is used to host UAG, TA, SP TA, and other utility servers. 
Standby No longer used.

As you can see in the below image, the following cluster is not being used to host any of the VDI systems. 

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