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On this post I'm adding a step by step implementation procedure of a Dataguard site configured using fast start failover, it includes tips for configuring the observer process on a windows server and to configure automatic client failover in case of role change.
All details on this document: Dataguard FSFO Step by Step
This post describes a situation that should not happen, having a standby out of synch and not having the required logs to close the gap.
If it is nice to have a procedure to deal with the situation, it is better to assure that archived logs are backed up on a schedule, and that the backup and cleanup script is automatically run every time a threshold of 20% free space on the archive log destination is reached before the next scheduled cleanup run.
In any case this technique is quite nice as it permit to re-synch the standby without needing to copy over the whole database, but only the blocks that were changed since the last standby SCN.
Full details on this document:
How to Synchronize the Standby When there is a Big gap, and all Required Archived Logs are Lost
This page contains all entries posted to Alejandro Vargas' Blog in January 2009. They are listed from oldest to newest.
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