To create a file system with large file capability:

  # mkfs -t vxfs -o largefiles special_device size

Specifying largefiles sets the largefiles flag. This enables the file system to hold files that are two gigabytes or larger. This is the default option.

To clear the flag and prevent large files from being created:

  # mkfs -t vxfs -o nolargefiles special_device size

The largefiles flag is persistent and stored on disk.