Red Hat ENTERPRISE LINUX 5 - LOGICAL VOLUME MANAGER ADMINISTRATION Manual page 87

# lvcreate -l8780 -n testlv testvg
This uses all the free extents in the volume group.
# vgs -o +vg_free_count,vg_extent_count
VG #PV #LV #SN Attr
testvg 2 1
Alternately, you can extend the logical volume to use a percentage of the remaining free space
in the volume group by using the -l argument of the lvcreate command. For information, see
Section 4.4.1.1, "Creating Linear
VSize VFree Free #Ext
0 wz--n- 34.30G
Volumes".
Insufficient Free Extents for a Logical Volume
0 0 8780
75