Data guard: OMF and directory structure

hi everybody,
i guess this problem is not too complicated, but maybe i´m missing something.
assumption:
- 10.2.0.4
- data guard with physical standby (primary: node_a, standby: node_b)
- primary db_unique_name=primary, standby db_unique_name=standby
- using OMF, primary db_create_file_dest=<myDir>/oradata
- standby_file_management is set to AUTO
- want to use same directory structure for data files on both nodes (<myDir>/oradata/PRIMARY/)
data guard is working as expected so far, data files on both nodes are created in <myDir>/oradata/PRIMARY/datafile/
next assumption:
- failover is initiated
- physical standby is recreated on former primary node (node_a)
from now on, data files are created in <myDir>/oradata/STANDBY/datafile/, old data files remain in <myDir>/oradata/PRIMARY/datafile/.
is there a way to avoid a second directory (and still use the benefits of OMF)? at least at the current standby node it´s possible to avoid this by setting db_file_name_convert, but what about the new primary?
thanks for your input,
peter
Edited by: priffert on Sep 14, 2009 3:07 AM

I have a similar setup with the exception that I'm using ASM for datafiles. The issue I'm having with OMF is that if I create a datafile within a disk group that is not in the location specified by db_create_file_dest then on the standby it's created in the db_create_file_dest. Apparently this will not give me the ability to maintain the exact configuration on both primary and standby without requiring modification after role changes.

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