Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

The above output indicates that the thin LUNs corresponds to plex
datavol-02.
Direct all reads to come from those LUNs:
# vxvol -g datadg rdpol prefer datavol datavol-02
6
Remove the original non-thin LUNs.
Note: The ! character is a special character in some shells. This example shows
how to escape it in a bash shell.
# vxassist -g datadg remove mirror datavol \!STDARRAY1_01
# vxdg -g datadg rmdisk STDARRAY1_01
# vxdisk rm STDARRAY1_01
7
Grow the file system and volume to use all of the larger thin LUN:
# vxresize -g datadg -x datavol 40g da_name
579Migrating arrays
Migrating to thin provisioning