Naming Conventions

Term

Purpose

TREX instance

One installation of the TREX server software

TREX host

Host on which the TREX server software is installed

Server

Program that offers services (such as an index server or queue server)

Master Host

Host on which a master index server is running

Slave Host

Host on which a slave index server is running

Backup host

Host on which a backup index server is running

Variable

Purpose

<SAPSID>

System ID in uppercase letters

<sapsid>

System ID in lowercase letters

<SAP_System_Directory>

SAP system directory:

• On UNIX /<sapmnt>/<sapsid>/SYS

• On Windows <disk_drive>:\usr\sap\<SAPSID>\SYS

<TREX_DIR>

Installation directory for a TREX instance. The path to the directory is:

• On UNIX /usr/sap/<SAPSID>/TRX<instance_number>

• On Windows <disk_drive>:\usr\sap\<SAPSID>\TRX<instance_number>

User <sapsid>adm

Operating system user that you log on with to administrate TREX.

SAPService<SAPSID> user

Operating system user under which the TREX processes run.

User <j2eeadm>

Operating system user that you use to log on to the host on which the J2EE Engine is running.

Abbreviation

Purpose

Master server

M NS

Master name server

M IS

Master index server

M QS

Master queue server

Slave server

S NS

Slave name server

S IS

Slave index server

Backup server

B IS

Backup Index Server

B QS

Backup queue server

Other servers

RFC

RFC Server

WS

Web server

PP

Preprocessor

Data

MI

Master index

SI

Slave index

SN

Index snapshot

Q

Queue

T

Topology file