The fetch archive log (FAL) client and server resolve gaps detected in the range of archived redo log files generated at the primary database and received at the physical standby database.
FAL Server services: The FAL server services the FAL requests coming from the FAL client.
FAL Client services: The FAL client requests the transfer of archived redo log files automatically
Different types of Archive gaps and Problems handled by FAL mechanism:
1. When creating physical or logical standby database, the FAL mechanism can automatically
retrieve any archived redo log files generated during a hot backup of the primary database.
2. When you have multiple physical standby databases, the FAL mechanism can automatically
retrieve missing archived redo log files from another physical standby database.
3. The FAL client and server are configured using the FAL_CLIENT and FAL_SERVER
initialization parameters
No comments:
Post a Comment