Chapter 4. High availability solutions for WebSphere Remote Server 83
4.5.3 High availability configuration for DB2
To implement a high availability configuration for DB2, ensure that you have a
data replication mechanism between the two DB2 instances. The DB2 feature
that allows this is called HADR. This protects against data loss by replicating
data changes from a primary database to a standby database. Transactions that
occur on the primary database are applied to the designated standby database.
If the primary database becomes unavailable, the standby database can be
used. Chapter 6, “Advanced high availability configuration for WebSpher ...
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