Cause: A file name was specified which did not contain a valid ASM alias name. The ASM alias name, if present, follows immediately after the diskgroup name, in place of the ASM file number. It must be preceeded by a slash, start with an alphabetic character, and consist of up to 48 characters which are alphabetic, numeric, or the characters '$', '_', '-', or '#". A space can separate two parts of an alias name. See the solution below.
Error solution: Correct the file name specification.
Database version: Oracle 11g Release 2 (11.2)