lvcreate

Create a logical volume in an existing volume group. A volume group is a collection of logical and physical volumes. See also: lvm. More information: https://man7.org/linux/man-pages/man8/lvcreate.8.html.

lvcreate -L 10G vg1

lvcreate -L 1500 -n mylv vg1

lvcreate -l 60%VG -n mylv vg1

lvcreate -l 100%FREE -n mylv vg1