We are in the process of migrating several stand-alone server hosts onto a CentOS-6 kvm virtual host. We also use Webmin to administer our hosts. All of the guests, without exception, have been cloned brom a prototype guest using virt-manager. All of the additional VirtIO disks assigned to some of the guests have been added through virt-manager as well.
Recently I have encountered a situation with the development copy of Webmin where I can see an additional VirtIO disk assigned to one guest instance, but not yet added to the lvg of that guest, as an unknown device on different guest. Further, I can see an lv assigned to one guest instance as an lv on a difference guest.
The webmin author is aware of this problem and is assiduously trying to determine its cause. My difficulty is answering the question: How is it even possible for an application running under a httpd service on one guest to see anything at all besides the VirtIO storage assigned to that guest?
Has anyone else encountered this anomaly?