When Oracle database 11g tries to write to the share a message is returned stating it cannot access the file.
- Samba share with user and password defined
- Windows Server 2008 R2.
- All files are accessible (read, write, delete) with Explorer 
Solution:
The application cannot write to shares that are mounted as a drive letter.
For example:
C:\destination   or  \\open-e\share\destination  is correct, but
\\open-e\ E:\destination  (share mounted as E:  )  causes failure.