Siemens V 4.0 User Manual

184

GINA V4.0 System Administrator Guide – September 2000

BEA T

UXEDO

domains

A BEA T

UXEDO

domain refers to an administrative unit, a BEA T

UXEDO

application, which is

independent of other BEA T

UXEDO

applications. These independent domains can, however,

communicate with each other using gateways, i. e. services which offer and export a do-
main can be imported into another domain and then called.

A BEA T

UXEDO

application (domain) refers to a system where all BEA T

UXEDO

services

made known through the configuration are managed from a central location. Several ma-
chines can be part of a single BEA T

UXEDO

application.

Domains allow one large BEA T

UXEDO

application to be split up into smaller, manageable

parts.

The information you must enter can be divided into four parts (see Figure 35 on page 156):

–

specifications on system-wide settings, such as the participating domains

–

specifications on domain-wide settings, such as the participating hosts

–

specifications on host-specific parameters, such as operating system resources

–

specifications on application-specific parameters, such as the number of work pro-
cesses

Practically speaking, some of the parameters can be specified in more than one of the four
areas. In such cases, the values set higher up in the hierarchy must be taken as default set-
tings. These values are then overwritten by the settings in more specific areas. The desired
settings can thus be specified separately for each application if required (customizing).

If parameters are specified more than once at system level, they are then valid for the rest
of the system level or until a new parameter is specified.

Figure 35 on page 156 is a symbolic representation of the hierarchies in the definition of the
system. It is not drawn to scale to reflect the scope of the individual sub-descriptions.