Database Reference
In-Depth Information
Figure 13-6.
Adding a standby database by using a RMAN online backup
If using the online method, perform the backup at a time outside peak hours so that
performance of Enterprise Manager Cloud Control is not negatively impacted. When using
this method, you can also decide to use RMAN's feature to copy backups directly to the
destination host using Oracle Net Services or stage the backups before copying. The latter
option requires additional storage at both the primary and secondary sites. If there is an
existing backup as a result of routine backup procedures or from a previous Add Standby
Database operation, it may be used as well.
3.
Next you'll select a backup option. As you can see in Figure
13-7
, you provide the degree
of parallelism RMAN will use, as well as the credentials for the primary host. The standby
database will require standby redo logs for real-time apply. They will be created on the
primary database as well in the event of a role transition. You may use OMF for the standby
redo logs (default) or manually specify the log files. For databases using ASM, supply the
disk group name.
