FWN/Beats/Virtualization

Virtualization

In this section, we cover discussion on the @et-mgmnt-tools-list, @fedora-xen-list, @libvirt-list and @ovirt-devel-list of Fedora virtualization technologies.

Contributing Writer: Dale Bewley

Enterprise Management Tools List

This section contains the discussion happening on the et-mgmt-tools list

Starting Guests from a Desktop Icon

Orion Poplawski said[1] "I'd like to provide an icon that would startup the virtual machine and connect to it." Cole Robinson posted[2] a couple of ways to accomplish this.

• With virt-manager and support for CDROM and USB devices

UUID=`virsh --connect qemu:///system domuuid vm-name`
virsh --connect qemu:///system start $UUID
virt-manager --connect qemu:///system \
             --show-domain-console=$UUID

• With virt-viewer which won't support CDROM and USB access

UUID=`virsh --connect qemu:///system domuuid vm-name`
virsh --connect qemu:///system start $UUID
virt-viewer --connect qemu:///system $UUID

Each solution requires adequate user permissions to work.

[1] https://www.redhat.com/archives/et-mgmt-tools/2008-October/msg00100.html

[2] https://www.redhat.com/archives/et-mgmt-tools/2008-October/msg00103.html

libvirt Plugins for Performance Monitoring Applications

Guido Günther announced[1] the creation of plugins[2] for net and block I/O monitoring in Munin[3].

Daniel Veillard posted[4] a patch to add this and similar plugins for collectd[5] and Nagios[6] to the libvirt applications page[7].

[1] https://www.redhat.com/archives/et-mgmt-tools/2008-October/msg00118.html

[2] http://munin.projects.linpro.no/

[3] http://honk.sigxcpu.org/projects/libvirt/monitor/

[4] https://www.redhat.com/archives/et-mgmt-tools/2008-October/msg00121.html

[5] http://collectd.org/plugins/libvirt.shtml

[6] http://et.redhat.com/~rjones/nagios-virt/

[7] http://libvirt.org/apps.html"

Fedora Xen List

This section contains the discussion happening on the fedora-xen list.

Libvirt List

This section contains the discussion happening on the libvir-list.

Openvz Bridge Support and Related Patches

"This patch series is derived from Anton Protopopov /Evgeniy Sokolov bridge device patches. It first does some generic refactoring of MAC address handler in all drivers, then adds code to extract openvz version number, then does network config, and finally does filesystem config. " ...

[1] https://www.redhat.com/archives/libvir-list/2008-October/msg00323.html

Image Locking

Itamar Heim [1] "I am interested to find out how libvirt envisions image locking. i.e., how do we make sure multiple nodes are not trying to access the same storage volume, probably causing image corruption."...

[1] https://www.redhat.com/archives/libvir-list/2008-October/msg00334.html

Export the 'label' on Block Devices

Chris Lalancette [1] "To support LVM partitioning in oVirt, one of the things we need is the ability to tell what kind of label is currently on a block device. Here, a 'label' is used in the same sense that it is used in parted; namely, it defines which kind of partition table is on the disk, whether it be DOS, LVM2, SUN, BSD, etc. Note that this is different than the partition type; those are things like Linux, FAT16, FAT32, etc."...

[1] https://www.redhat.com/archives/libvir-list/2008-October/msg00341.html

Experimental User Mode Linux Driver

Daniel P. Berrange [1] "This patch implements a driver supporting User Mode Linux guests. User mode linux is a kind of paravirtualized kernel which runs on a plain Linux host. It requires no elevated privileges at all, except for some of the network integration. It is a pretty straightforward thing to invoke, so I figured it would be easy to write a driver to support it. I was right :-)"...

[1] https://www.redhat.com/archives/libvir-list/2008-October/msg00355.html

oVirt Devel List

This section contains the discussion happening on the ovirt-devel list.