Configuring parallel discovery for VMware vCenter Server and ESX servers

Last published : Jul 06, 2026
To change the number of vCenter Servers and the ESX servers configured for the near-real time discovery, you need to edit the following values in the virtualization.conf file. The file is created during the installation of Control Host.
  • vc_max_processes
  • esx_max_threads
Where:
vc_max_processes: It is the number of processes created for the discovery of the vCenter Servers. One process per vCenter Server is created for the discovery.
esx_max_threads: It is the number of threads created for the discovery of the ESX server. One thread per ESX server is created for the discovery.
The virtualization.conf file is located at:
  • On Linux Management Server: /var/opt/VRTSsfmh
  • On Windows Management Server: %ALLUSERSPROFILE%\Symantec\VRTSsfmh\
    Note: By default, for a VMware vCenter Server, the value is one and for ESX servers it is 25.
More Information
About near real-time discovery of VMware events
Setting up near real-time discovery of VMware events
Configuring the VMware vCenter Server to generate SNMP traps