virsh attach-disk centos7-mail --source /var/lib/libvirt/images/mail-storage.img --target vdb --persistent
Kommandot cfdisk /dev/vdb skapar /dev/vdb5 LVM2
cfdisk /dev/vdb
pvcreate — initialize a disk or partition for use by LVM
pvcreate /dev/vdb5
vgextend centos_mail /dev/vdb5
lvcreate --name storage --size 32G centos_mail
mkfs.xfs /dev/mapper/centos_mail-storage