Configuring HP Serviceguard Toolkit for Oracle Data Guard

Further preparations

At this point, the physical standby database is running and can provide the maximum performance

level of data protection. The following list describes additional preparations you can take on the

physical standby database:

1. Upgrade the data protection mode:

The Data Guard configuration is initially set up in the maximum performance mode (the default).

This can be change to either maximum protection mode or maximum availability mode.

2. Configure standby redo logs:

Standby redo logs are required for standby databases running in the maximum protection mode

and maximum availability mode. However, configuring standby redo logs is recommended on all

standby databases, because during a failover, Data Guard can recover and apply more redo

data from standby redo log files than from the archived redo log files alone. The standby redo

logs should exist on both primary and standby databases and have the same size and names.

3. Enable Flashback Database:

Flashback Database removes the need to re-create the primary database after a failover.

Flashback Database is similar to conventional point-in-time recovery in its effects, enabling you to

return a database to its state at a time in the recent past. Flashback Database is faster than point-

in-time recovery because it does not require restoring data files from backup or the extensive

application of redo data. You can enable Flashback Database on the primary database, the

standby database, or both.

HP welcomes your input. Please give us comments about this white paper, or suggestions for related

documentation, through our technical documentation feedback website:

http://www.hp.com/bizsupport/feedback/ww/webfeedback.html

To learn more about the HP Serviceguard Toolkit for Oracle Data Guard, visit:

http://www.hp.com/go/sgoracledg

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4AA2-7717ENW, Created September 2010