Changing the TREX Host Name
Use
You want to change the host name of the servers on which you install TREX. You can do this for the following cases:
● Installing TREX with Virtual Host Name
To make your TREX installation accessible by a virtual host name you rename the host name of the host on which you intend to install TREX.
● Changing the TREX Host Name (Single-Host)
You change the TREX host name for a TREX single-host installation on the host where TREX has been installed.
● Changing the TREX Host Name (Multiple-Hosts)
You change the TREX host name for a TREX multiple-host installation on each host in your distributed TREX landscape where TREX has been installed and configured. You change the host name on one TREX host first and repeat the same procedure for the other hosts that you want to rename.
Prerequisites
The new host name must be valid at the operating system level. It can be a new primary host name, an additional alias name, or it’s IP address. The host must be accessible with this name using the ping command. In a distributed TREX landscape (multiple-host-Installation) the host must be accessible with this name using the ping command from all other hosts as well.
Naming Conventions
<TREX_DIR> |
Installation directory for TREX ●
On UNIX:
/usr/sap/<SAPSID>/ ●
On Windows
<drive>:\usr\sap\<SAPSID>\ |
<TREX_INSTANCE> |
Directory of the TREX Instance <TREX_DIR>/<trex_host_name> |
<TREX_GlOBAL> |
Global file system for your TREX installation ●
On UNIX:
<SAPGLOBALHOST>/sapmnt/<sapsid>/ For
example, ●
On Windows:
<SAPGLOBALHOST>\sapmnt\<SAPSID>\ For example,
<drive>:\usr\sap\<SAPSID>\SYS\ |
START_TRX<instance_number>_<host> |
Start profile for a TREX instance Specifies the TREX instance number and the host name on which the TREX instance runs. |
<SAPSID>_TRX<instance_number>_<host> |
TREX instance profile The instance profile contains specific information about the runtime environment for a TREX instance. |