(→Memory Ballooning Support for QEMU: name link) |
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* Redesigned 'New Virtual Machine' wizard (Jeremy Perry, Tim Allen, Cole Robinson) | * Redesigned 'New Virtual Machine' wizard (Jeremy Perry, Tim Allen, Cole Robinson) | ||
* Option to remove storage when deleting a virtual machine. | * Option to remove storage when deleting a virtual machine. | ||
* File browser for libvirt storage pools and volumes, for use when attaching storage to a new or existing guest. | * File browser<ref>http://www.redhat.com/archives/et-mgmt-tools/2009-March/msg00045.html</ref> for libvirt storage pools and volumes, for use when attaching storage to a new or existing guest. | ||
* Physical device assignment (PCI, USB) for existing virtual machines. | * Physical device assignment (PCI, USB) for existing virtual machines. | ||
* Bug fixes and minor improvements. | * Bug fixes and minor improvements. | ||
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<references /> | <references /> | ||
=== Fedora Xen List === | === Fedora Xen List === | ||
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[http://www.redhat.com/mailman/listinfo/libvir-list libvir-list]. | [http://www.redhat.com/mailman/listinfo/libvir-list libvir-list]. | ||
==== Snapshot Support ==== | ==== Snapshot Support Discussed ==== | ||
In an attempt to make it easier to backup <code>KVM</code> windows guests, | In an attempt to make it easier to backup <code>KVM</code> windows guests, | ||
[[MattMcCowan| Matt McCowan]] | [[MattMcCowan| Matt McCowan]] |
Revision as of 02:25, 16 March 2009
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
New Release virt-manager 0.7.0
Cole Robinson announce[1]
a new
[2] release, version 0.7.0.
virt-manager
Virtual Machine Manager provides a graphical tool for administering virtual
machines for KVM
, Xen
, and QEmu
. Start, stop, add or remove virtual devices,
connect to a graphical or serial console, and see resource usage statistics
for existing VMs on local or remote machines. Uses
as the backend
management API.
libvirt
New features:
- Redesigned 'New Virtual Machine' wizard (Jeremy Perry, Tim Allen, Cole Robinson)
- Option to remove storage when deleting a virtual machine.
- File browser[3] for libvirt storage pools and volumes, for use when attaching storage to a new or existing guest.
- Physical device assignment (PCI, USB) for existing virtual machines.
- Bug fixes and minor improvements.
New Release virtinst 0.4.3
Cole Robinson announce[1]
a new
release, version 0.400.3.
python-virtinst
virtinst
is a module that helps build and install libvirt
based virtual
machines. It currently supports KVM
, QEmu
and Xen
virtual machines. Package
includes several command line utilities, including virt-install
(build
and install new VMs) and virt-clone
(clone an existing virtual machine).
This is largely a bug fix release.
Fedora Xen List
This section contains the discussion happening on the fedora-xen list.
dom0 Kernel: Better, Still Not Ready
Itamar Reis Peixoto reported[1]
success with Michael Young's latest
build[2] and wondered when it could be released.
kernel
Michael explained, "The current plan is to wait until basic dom0
support makes it into the vanilla kernel
, which should happen for 2.6.30, and then decide if dom0
can be enabled and if the patches for full dom0
support can safely be added without affecting ordinary operation."
"At the moment there are still things that are broken such as X
support in some cases, and there are also Fedora patches that have been omitted because they were tricky to merge, so it is too early to start adding dom0
support to official Fedora kernels."
Missing Hypervisor Capabilities Restored
There was progress on a bug discovered[1] last week. This missing file
/sys/hypervisor/properties/capabilities
has been
restored[2],
however a bug[3] remained[4] in libvirt
or virt-install
.
Libvirt List
This section contains the discussion happening on the libvir-list.
Snapshot Support Discussed
In an attempt to make it easier to backup KVM
windows guests,
Matt McCowan
created[1]
a checkpoint virsh
function. "Modelled on the virDomainSave
[2] function it takes
an optional script which it will execute (and pass the name of the
domain as an argument) while the domain is paused, then resume the
domain." Within this script, a backup of the guest domain could be created.
The patch was seen as too ad-hoc, and not accepted as-is.
Daniel Veillard
commented[3]
"I think this can help administrators in a controlled situation,
but I'm hoping a real snapshotting API will be possible at some point
where
goes though the list of storage resources used by the
domain and properly make a snapshot using a storage API or return
an error if that's not possible."
libvirt
Daniel P. Berrange
described[4]
what he would like to see.
"In terms of API I think I'd like to see
snapshotting[5] available as part
of a more generic save/restore API. I tend to think of the current API
as providing 'unmanaged save/restore'". Libvirt does not track saved images,
so does not know if a snapshot is available to be started at the restart of
libvirtd
."
"Thus I think the first step towards a general snapshot facility would
be to provide an API for 'managed save/restore' where we explicitly
track saved images."
"With this, you could configure libvirtd
, so that when starting up, it"
would "see if the guest was suspended before
the previous host shutdown, and if so, then restore from that saved
image automatically.[6] Or make it skip autostart completely, if any save
images exist, and allow an admin defined initscript to do auto restore
from the save image."
- ↑ http://www.redhat.com/archives/libvir-list/2009-March/msg00177.html
- ↑ http://libvirt.org/html/libvirt-libvirt.html#virDomainSave
- ↑ http://www.redhat.com/archives/libvir-list/2009-March/msg00199.html
- ↑ http://www.redhat.com/archives/libvir-list/2009-March/msg00205.html
- ↑ http://wiki.libvirt.org/page/TodoVMSnapshots
- ↑ http://wiki.libvirt.org/page/TodoDaemonRestart
Memory Ballooning Support for QEMU
Daniel Berrange
patched[1]
the libvirt
QEMU driver to fully support memory ballooning.
"Memory ballooning allows you to have your guest dynamically change it’s memory usage by evicting unused memory during runtime. This is a useful feature because it reduces the impact your guest can have on memory usage of your host by giving up unused memory back to the host."[2]