Troubleshooting guide

7 — 5620 SAM system redundancy
Alcatel-Lucent 5620 Service Aware Manager 7-15
5620 SAM
System Administrator Guide
Figure 7-14 Network failure on primary side, distributed system
The following occur after the connectivity loss is detected:
• The initial primary server continues to operate as a primary server.
• The initial primary server generates an alarm about the standby server
unavailability, and a reachability alarm against each NE in the network.
• Each GUI client displays the standby server status as Down.
• The standby server becomes a primary server.
Split complex
A split complex is a scenario in which both servers in a collocated or distributed
5620 SAM system lose contact, but each server can communicate with the preferred
database, as shown in Figure 7-15.
Note — You can eliminate a single point of hardware or network
failure by using redundant interfaces and redundant physical network
paths. See the 5620 SAM Planning Guide for more information.
Primary database
Primary main
server
Standby database
Standby main
server
Connectivity
loss
24119
Managed
network
Release 12.0 R6 | November 2014 | 3HE 08861 AAAF TQZZA Edition 01