7 Switchover and Failover in DG PDB Environments

Learn how to use Oracle Data Guard broker to manage switchover and failover operations in a DG PDB environment.

This chapter contains the following topics:

• Overview of Switchover and Failover in a DG PDB Environment
• Performing PDB Switchover
• Performing PDB Failover

• Overview of Switchover and Failover in a DG PDB Environment
  Oracle Data Guard broker enables you to reverse the roles of the source PDB and its designated target PDB using either a switchover or failover operation.
• Performing PDB Switchover
  A PDB switchover is a role reversal between the source PDB and its designated target PDB. Use DGMGRL commands to perform a PDB switchover.
• Performing PDB Failover
  A PDB failover is a role reversal between a source PDB and its designated target PDB. This operation is typically performed when the source PDB has failed and there is no possibility of recovering it in a timely manner.