I have a KVM-host with a lot of local disk for virtual machines that I administer using virtmanager. I want an easy solution for addressing disk for my virtual hosts. I also want to be able to add storage to the virtualmachines from time to time.
LVM are nice and have a lot of features for increasing partition size and for snapshots. But since KVM makes its own partition table on LVM-partitions its not so easy to change size for both the partition and the underlying filesystem. Virtmanager are not able to use all LVM-features so if I should continue with LVM I have to use other administrations tools to.