Broqaints answer is of course the proper one, but in case you really wanted to select numbered lines, you can use an impossible output character to slurp all:

lvdisplay /dev/vg00/lvol3 | perl -ln0aF'\n' -e 'print for @F[1,4,5]'
[download]

(or use -0777 if there are no impossible output characters). Golfers (sorry, I can't resist) might write:

lvdisplay /dev/vg00/lvol3 | perl -lp0aF'\n' -e '}for(@F[1,4,5]){'
lvdisplay /dev/vg00/lvol3 | perl -n0aF/^/m -e 'print@F[1,4,5]'
[download]

Or select on line-number, e.g.:

lvdisplay /dev/vg00/lvol3 | perl -ne 'print if $.=~/^(2|5|6)$/'
[download]

Golfers would of course write that as:

lvdisplay /dev/vg00/lvol3 | perl -pe '$_ x=$.=~/^[256]/'
lvdisplay /dev/vg00/lvol3 | perl -pe '$_ x=256=~$.'
lvdisplay /dev/vg00/lvol3 | perl -pe '$_ x=$^H=~$.'
[download]

(use a real control-H in the last one for a one char gain)