When TAPEDEV and LTAPEDEV specify directories, use the IFX_ONTAPE_FILE_PREFIX environment
variable to specify a prefix for backup file names that replaces the hostname_servernum format.
If no value is set, file names are hostname_servernum_Ln for
levels and hostname_servernum_Lognnnnnnnnnn for log
files.
If you set the value of IFX_ONTAPE_FILE_PREFIX to My_Backup,
the backup file names have the following names: