If you receive the following error message "Error ./pnarchiver Thread 2051:PN-0102:SQL error: ORA-01005: null password given; logon denied" then there is a Problem with archiving to NFS server. The directories for the archiving are properly created on the server but those directories remain empty. The workaround is that an inter operability issue exists between MARS and CygWin NFS server running on Windows 2003 server. To work around such inter operability issues, replace the NFS server with Microsoft Windows Services for Unix.