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10 CHAPTER 1: PRE-INSTALLATION
Figure 1 Network diagram - single server
Option 2: Dual Server If you have two servers, configure the primary server as a “provisioning”
server by installing the web console server, initial master database, VCX
user database, presence server, and conference server on it. Configure
the secondary server with the initial slave database and the conference
server. The database pair (master and slave) provides redundancy, with
the slave maintaining a copy of the master using MySQL database
replication. In the event the slave cannot communicate with the master
for ten minutes, switchover occurs. Note that both servers in a dual-server
configuration can host conferences.
Components installed on the primary server:
n conference server/conference attendant server
n presence server (if purchased)
n VCX user database
n conferencing and presence database (initial master)
n web console server.
Components installed on the secondary server:
n conference server/conference attendant server
n conferencing and presence database (initial slave).
VCX or
Conference server pool
Conference server
Presence server
Master database
User database
Web server
NBX server