You can mount a VxFS file system by using the mount command. When you enter the mount command, the generic mount command parses the arguments and the -V FSType option executes the mount command specific to that file system type. If the -V option is not supplied, the command searches the file /etc/filesystems
for a file system and an FSType matching the special file or mount point provided. If no file system type is specified, mount uses the default file system.