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Data Guard Redo Log retry Tips

Oracle Tips by Burleson Consulting

December 9, 2011

Oracle Data Guard - Log Management Services

Archiving to an Alternate Destination

Using the ALTERNATE attribute of log_archive_dest_n and log_archive_dest_state_n parameters, an alternate archival destination can be setup. When log archiver on the primary database is unable to archive to the original archival destination, it attempts to write to alternate destinations. Moreover, if the REOPEN and MAX_FAILURE attribute is used, the alternate destination will not be enabled unless archiver completes the MAX_FAILURE number of attempts of archiving redo logs to the original destination.

In the following example, the log destination specified by appsstdby1 has an alternate destination specified by the log_archive_dest_4 parameter. If the archiver on the primary database is not able to archive logs to the appsstdby1 Oracle instance on two successive attempts at an interval of 90 seconds, it will write the log file in local file system /oracle/appsdb/arch_2 directory.

The above text is an excerpt from the book: Oracle Data Guard Handbook

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Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals. Feel free to ask questions on our Oracle forum.

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