What is fast start failover Data Guard?

Fast-Start Failover is a feature that allows the Oracle Data Guard broker to failover a failed primary database automatically to a predetermined standby database. Fast-Start Failover enables the broker to perform these tasks automatically in the same time that it would typically take a DBA to log into the system.

What is the difference between switchover and failover?

A switchover is a role reversal between the primary database and one of its standby databases. A failover is when the primary database (all instances of a RAC primary database) fails and one of the standby databases is transitioned to take over the primary role.

How do you test for fast start on a failover?

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How do you failover a dataguard?

Performing failover : Step 1: Check Standby Database role. Step 2: Apply the following command to finish database recovery. SQL> alter database recover managed standby database finish; Database altered. Step 3: Use the following command to activate standby database to a primary.

How do you failover in Oracle Data Guard?

On the Oracle Data Guard Overview page in Cloud Control, select the standby database that you want to change to the primary role and click Failover. Then, on the Failover Confirmation page, click Yes to invoke the default Complete failover option.

How do I enable FSFO?

The major steps in the walkthrough are:

  1. Configure Oracle Net (aka SQL*Net)
  2. Prepare the primary database.
  3. Create a physical standby.
  4. Enable Flashback Database.
  5. Create a Broker configuration.
  6. Configure the observer.
  7. Enable and test FSFO.

Which three are prerequisites for enabling fast start failover?

Fast-Start Failover Prerequisites The standby database that is the target of fast-start failover must have its LogXptMode property set to SYNC or FASTSYNC to enable fast-start failover in maximum availability mode or to ASYNC to enable fast-start failover in maximum performance mode.

What is difference between failover and failback?

The failover operation is the process of switching production to a backup facility (normally your recovery site). A failback operation is the process of returning production to its original location after a disaster or a scheduled maintenance period.

What is failover time?

Failover is a backup operational mode in which the functions of a system component are assumed by a secondary component when the primary component becomes unavailable — either through failure or scheduled down time.

How do you failover a physical standby database?

How do I disable fast start on failover?

To disable Fast_Start failover apply following command : DGMGRL> DISABLE FAST_START FAILOVER; When we perform above command Fast_Start failover is first disabled on target standby database with data guard broker then it is disabled from the primary database.

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