Lucent Technologies Medical Alarms Release 3 Version 8 用户手册

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Connecting HA Servers to the Switch describes connectivity requirements 
and recommendations specific to CMS High Availability (HA) systems. This 
information is applicable to the following 

DEFINITY Release 8.1 switches:

Generic 3si (G3si) 

Generic 3r (G3r)

Generic 3csi (G3csi)

Prologix Release 3 (G3csi)

The connectivity configurations described in this chapter represent the 
optimal link setups for HA systems. Other switch-to-server connectivity 
configurations are not described herein. For information about other switch-
to-server connections, see 

CentreVu Call Management System Switch 

Connections and Administration (585-215-876).

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The primary purpose of the CMS High Availability offer is to ensure an 
uninterrupted data stream between the DEFINITY ECS and the CMS system 
on which the data is stored. However, some customers may also desire 
continuous access to their CMS data. Following a major failure event on their 
primary HA server, customers have the option to switch over to their 
secondary server for purposes of CMS data monitoring and reporting. A 
server switch-over should be performed only when the anticipated down time 
for the primary server is expected to be significant.

Customers must choose between the following switch-over options:

Customers who do not require continuous access to their CMS data can 
choose not to switch-over to the secondary server after the primary 
server experiences a major failure event. When the primary server goes 
down, uninterrupted collection of call data will continue on the 
secondary server, but the customer will not be able to access that data 
until the primary server is restored.