Could you ensure me that minimal LVM2 size Unit is one extent to which all sizes are rounded up ?
Is 4MiB the default size of extent for LVM2 ? Can it be configurable or is it the only size ?
Small experiment of try of creating 2B logical volume:
# lvcreate -L 2 r2Ta -n test2b Rounding up size to full physical extent 4.00 MiB Logical volume "test2b" created # lvdisplay /dev/mapper/r2Ta-test2b | grep 'LV Size' LV Size 4.00 MiB