Install TREX on the host that you want to add.
For centralized data storage: Only UNIX: Mounting the Central TREX Data Directory or Only Windows: Defining the Network Drive..
Start TREX on the new host.
Start the TREX admin tool on a host that is already configured in the distributed system.
Go to the Landscape Configuration window.
Use Add Host to add the new host.
Select Assign Existing Indexes/Queues to New Slave/Backup Servers. Otherwise the new slave host does not receive existing indexes.
Configure the new host in the Hosts table as follows:
In the Slave Index Server for… column, specify the master host to which the host belongs.
If you are using centralized data storage: In the column Base Path enter the central TREX data directory on the file server.
Check the configuration. If the check does not find any errors, activate the configuration using Deploy.