The failure of an Address Manager server or its database can have serious consequences for a network. Address Manager disaster recovery includes a system for application layer clustering, database replication, and manual system failover.
The Address Manager disaster recovery system consists of two or more servers each running its own set of applications, but connected to the same database running on a designated Primary server. Because the Primary server replicates its data to the Standby server or servers, Address Manager always has a single source of data for disaster recovery.
Example 1—Disaster recovery with one Standby server:
A typical Address Manager disaster recovery system consists of two Address Manager servers. One server is the Primary server, and it holds the primary copy of the database. The second server is a Standby server, and it holds the replicated copy of the database.
Example 2—Disaster recovery with two Standby servers:
Address Manager also supports the use of a second Standby server (or a tertiary server). When you configure database replication with two Standby servers, the Primary server replicates the database to both Standby servers.