User's Manual

Figure 71: eTM-HA Logging tab
Note:
The information shown in Figure 69: Open Task Manager on page 65 is intended as an
example. The exact information for your system differs according to your configuration
settings.
Publisher and Subscriber
A typical eTM_HA environment involves one system configured be Publisher, and one or more
system configured as Subscribers. Although eTM_HA can run stand-alone (just one publisher),
there is no value in activating an eTM_HA when there are no Subscribers. If there are no
Subscribers, use eTM instead of eTM_HA.
In the Publisher and Subscriber model, the Publisher is the site where the Messenger_CFG
configuration database is centralized. This is often called the main site. All configuration must
reside on this centralized database only, so eCONFIG maintenance and eKERNEL must all
reside on this same site.
The eTM_HA software can also be installed on distributed systems, intended to launch tasks
on the distributed system. These systems launch, for instance, eCAP and eDMSAPI modules,
all of them referring to the central eKERNEL residing on the Publisher site.
Publisher and Subscriber
DECT Messenger Installation and Commissioning — Book 2 March 2012 67