Troubleshooting guide

7 — 5620 SAM system redundancy
7-16 Alcatel-Lucent 5620 Service Aware Manager
5620 SAM
System Administrator Guide
Figure 7-15 Split complex, collocated or distributed system
The following occur after the connectivity loss is detected:
• The initial primary server and database roles do not change; the initial primary
server continues to manage the network. The client sessions are not interrupted.
• The primary server raises an alarm about the communication failure.
• The standby server and database switch roles to become a second primary server
and database.
• New clients connect to the initial primary server; however, if a client explicitly
tries to connect to the second primary server, a session is established.
• When the servers regain contact:
• If the network disruption also isolates one server from the managed NEs, the other
server and database remain the primary.
• Otherwise, the server that has currently held the primary role for longer remains the
primary, and the other server and database assume the standby role,
7.5 Workflow to perform 5620 SAM system redundancy
functions
1 Configure redundancy during 5620 SAM component installation. See the
5620 SAM | 5650 CPAM Installation and Upgrade Guide.
2 As required, a perform manual activity switch and switchover.
a For 5620 SAM main servers:
i Verify the 5620 SAM system redundancy status. See Procedure 7-1.
ii If required, verify the redundancy status of the 5620 SAM auxiliary
server. See Procedure 7-2.
Initial primary side
Primary database
Primary main
server
Primary main
server
Connectivity
loss
24120
Managed
network
Primary database
Initial standby side
5620 SAM GUI and OSS clients
Release 12.0 R6 | November 2014 | 3HE 08861 AAAF TQZZA Edition 01