The following are the High Availability Configuration wizard limitations:
If the Oracle database instance or listener instance is already configured, the Oracle instance is not shown and it will not be available for configuration. In such a scenario, no error message will be displayed.
For example, if there are two Oracle instances running on the system with the same Oracle home or listener and assuming that the first instance is configured, if you run the wizard to configure the next instance, the following error message is displayed:
The wizard has failed to discover Oracle on the system.
However, if the Oracle home or listener do not share any resources (storage and network), you can configure the Oracle instance.
The wizard supports discovery of only LVM or VxVM type of storage.
You cannot use the wizard to discover the instances that use ASM or raw disks.
The wizard will not discover the disks used by the application if the controllers attached to the virtual machine are of different type.
To correctly discover and identify the association of mount points to the virtual disks, all the controllers attached to the virtual machine must be of same type.
The wizard will not discover disks which are attached to the virtual machine in shared mode.