You use the TREX admin tool (standalone) to add a new host (server or server blade) to your TREX landscape.
Install a TREX instance on the server
If you have not yet installed a TREX instance on the host that you want to add to your TREX landscape, do so before continuing with the procedure.
For more information about the installation of TREX, see the SAP NetWeaver Standalone Engine Search and Classification (TREX) Single Host installation guide. The guide is located on SAP Service Marketplace at service.sap.com/instguidesnw.
Install a TREX instance on the server blade
For a distributed TREX installation with server blades, use the cloneInst.py script to generate a new TREX instance on the server blade.
See: Activating the Configuration Clones for Server Blades Go to the window in the TREX admin tool (standalone).
Following the installation of an additional TREX instance on a server, execute the Add host command (see Adding a Host) The cloneInst.py script automatically adds the server blade to the landscape
After adding a host (server or server blade) to your TREX landscape, do not simply carry out a reorganization. For performance reasons, you should completely redistribute the indexes. To do so, select the Split/Merge Index checkbox in the window of the TREX admin tool (standalone) and then start the reorganization. During this type of reorganization, the system also recalculates the number of parts of which a logical index consists.
Note that this reorganization can cause a complete reindexing process that can last as long as the initial indexing run. During this period, the system cannot perform indexing runs and searching is limited.