создать группу томов (Create a volume group)
Описание (Description)
vgcreate creates a new VG on block devices. If the devices were
not previously initialized as PVs with pvcreate(8), vgcreate will
inititialize them, making them PVs. The pvcreate options for
initializing devices are also available with vgcreate.
When vgcreate uses an existing PV, that PV's existing values for
metadata size, PE start, etc, are used, even if different values
are specified in the vgcreate command. To change these values,
first use pvremove on the device.
