Legacy platform

Active/passive failover configurations

Active/passive failover configurations provide a fully redundant instance of each node that is brought online only if its associated primary node fails.

IBM Db2 active/passive using cluster failover software
When using Db2® active/passive using cluster failover software, the standby node takes over the primary node's resources (the database files, logs) and identity (IP address, SAN WWNN). The database service is then started on the standby node.
IBM Db2 active/passive using HADR
High Availability Disaster Recovery (HADR) is a transaction log replication approach that keeps a standby database server in or near synch with changes in the primary database server.
Oracle active/passive using cluster failover
Oracle active/passive failover configurations are very similar to the Db2 active/passive configuration.

Parent topic: Hardware failures