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(12.01-en) HA: Installation Requirements

Owned by Renata Dulatova
Last updated: May 21, 2024 by Sarah LeitnerVersion comment
2 min read

In order to install an IGEL UMS High Availability network, your hardware and software must meet the following minimum requirements. 

The installation requirements can vary depending on how large your HA environment is. For more information, see (12.01-en) Installation and Sizing Guidelines for IGEL UMS.

UMS High Availability Network: Minimum Requirements

UMS Server
(includes UMS Server,
UMS Administrator, and UMS Console)

UMS Load BalancerUMS Web AppFile System

UMS Server:

  • At least 4 GB of RAM
  • At least 2 GB of free HDD space

UMS Console:

  • At least 3 GB of RAM
  • At least 1 GB of free HDD space

UMS Administrator:

  • At least 1 GB of RAM
  • At least 1 GB of RAM
  • At least 1 GB of free HDD space
  • 1 GB of RAM
  • 1 GB of free HDD space
  • 1 GB for the program files
  • Approx. 10 GB for each
    firmware update to be downloaded
For the supported operating systems, see the Supported Environment section of the release notes.
  • The UMS Server must not be installed on a domain controller system!
  • Manually modifying the Java Runtime Environment on the UMS Server is not recommended.
  • Running additional Apache Tomcat web servers together with the UMS Server is not recommended either.
  • High Availability with IGEL UMS Load Balancers: All UMS Servers and UMS Load Balancers must reside on the same VLAN.
  • For High Availability (UMS HA) with IGEL UMS Load Balancers, network traffic must be allowed over UDP broadcast port 6155, and TCP traffic and UDP broadcast traffic over port 61616. For further port configuration, see (12.01-en) IGEL UMS Communication Ports.
  • The network configuration on Windows Servers must have the TCP/IPv6 option enabled for UMS 12.
  • IGEL UMS HA installation with IGEL UMS Load Balancers is not supported in cloud environments like Azure / AWS as they do not allow broadcast traffic within their networks. The HA installation without IGEL UMS Load Balancers (as well as the Distributed UMS) is, however, supported in cloud environments as of UMS version 6.10.


If You Use an External Load Balancer / Reverse Proxy

The FQDN and port of your external load balancer / reverse proxy must be specified in the UMS Console under UMS Administration > Global Configuration > Server Network Settings > Cluster Address. Information on the Cluster Address can be found /wiki/spaces/HTSWICP/pages/83886925nder (12.01-en) Server Network Settings in the IGEL UMS.

Database Systems (DBMS)

For details on the supported database systems, see the "Supported Environment" section of the release notes. Details of the requirements when installing and operating the database can be found in the documentation for the particular DBMS.

The embedded database cannot be used for an HA network. You can use the embedded database only for a dedicated test installation with only a single server for the UMS Server and UMS Load Balancer.

The database system must be accessible to all UMS Servers.