How to convert an HFS or Vxfs filesystem from a nolargefiles system to a largefiles system

To convert an HFS or Vxfs file system from a nolargefiles file system to a largefiles file system:

unmount the file system:

then fsadm -F hfs -o largefiles /dev/vg02/lvol1 (or whatever the dev file for the volume is) or fsadm -F vxfs -o largefiles /dev/vg02/lvol1