You can use the TREX admin tool (stand-alone) to remove a host from a TREX landscape temporarily or permanently.
Removing a Host Temporarily
The reorganization process distributes indexes that are located on the removed host to other hosts. When the reorganization is finished, there are no more indexes on the host in question.
If you select the Split/Merge Indexes checkbox before performing the reorganization, the system not only reorganizes the indexes but also distributes and splits the logical indexes again. 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.
To add the host to your landscape again, proceed as described inAdding a Host.
Removing a Host Permanently
The host is highlighted in red as soon as you have stopped it.
You are asked whether you want the indexes located on this host to be moved automatically.
The system removes all the indexes from the host in question.
After permanently removing a host, do not simply carry out an organization. For performance reasons, you should completely redistribute the indexes. To do so, select the Split/Merge Index checkbox in the Landscape → Reorg window of the TREX admin tool (stand-alone) 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.