Is there a way to Query 10g to locate your Dumplocation ?

Question

I have gone through postings on this forum which has some very valuable information. While having done most of the required suggestions i am having problems running my expdp on 10g. the main reasons has been that it keeps on saying invalid dumplocation.
I earlier created the dumplocation which is located on the database as
SQL> CREATE DIRECTORY dumplocation
AS '/oradata/dumpfiles';
And later on granted read and write to user John who is going
to be executing the export and have granted to him Full Exp and Imp Privileges
SQL> GRANT READ, WRITE ON DIRECTORY dumplocation TO John;
**I DO NOT WANT TO MAKE A DEFAULT DATA_PUMP_DIR ***
Now on executing
expdp directory=dumplocation
username:John/******
My export will still not run...
it does not find the dumplocation..
on issuing the Create Directory statement the second time.it days that directory already exist.
Is there a ways to locate you dumplocation ?
Could someone suggest to me what's wrong.
OS=Windows 2003.
Thanks

Answer 1

In addition to posting the exact error message, does '/oradata/dumpfiles' really exist on the database server's file system? That does not look like a Windows directory to me. And it's a rather odd directory structure on a Unix box.
Justin