Solution : https://service.sap.com/sap/support/notes/786921 (SAP Service marketplace login required)
Key words : 
identify/lock data file <file_id> - file, import offline redo log files, alter database create datafile '<file_name>', offline redo log, data file <file_id>, datafile <file_id> needed, <file_name>restart brarchiveu, raw disk file, terms br tools, database file automatically
Related Notes : 
       
| 680046 | Corrections in BR*Tools Version 6.40 |