HCL Portal high availability
HCL Digital Experience is licensed for use in a single-server configuration and might not be used in either a cloned configuration or a clustered configuration except when implementing idle standby for the purpose of failover.
In an idle standby configuration, a server is considered idle if it is used exclusively for administrative needs and to help a failover situation. HCL Portal is installed on the idle standby server, but it is not operational to service user transactions or to query workloads.
Implementing idle standby requires the purchase of a separate HCL Portal Idle Standby Part Number, in addition to licensing the primary server, regardless of whether your primary servers are currently licensed under the per User License Option or the per Processor Value Unit License Option.
The deployment scenario, Deploying HCL Portal for high availability using idle standby, in the HCL Portal wiki provides information about setting up an idle standby configuration.