Resizing a file with two //

Hi,

We have a file in a database with two slashes in its name:
"/u03//oradbs/abcd/tool_abcd.dbf". I dont know how that file was created,
but I inherited that database. The tablespace is full now. I would like to resize the file to a bigger size, but resize command fails with

"ORA-01516: nonexistent log file, datafile, or tempfile"

I can add a new file, but I prefer straightening out the name of this file. Does anyone know how to rename this file properly with just one "/".

Oracle: 10.2 on Solaris 8

Ram.

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