|
|
| (344 intermediate revisions by 4 users not shown) |
| Line 1: |
Line 1: |
| | [[Category:Virtualization]] <!-- do not copy into FWN issue --> |
| | |
| {{Anchor|Virtualization}} | | {{Anchor|Virtualization}} |
| | |
|
| |
|
| == 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. | | In this section, we cover discussion of Fedora virtualization technologies on the |
| | | @fedora-virt list. |
| Contributing Writer: [[DaleBewley | Dale Bewley]]
| |
| | |
| === Fedora 10 Virtualization ===
| |
| This section contains a description of the virtualization features of the brand new Fedora 10 release.
| |
| | |
| ==== New Features ====
| |
| The Fedora 10 release includes a number of virtualization enhancements over previous releases.
| |
| | |
| In the Virtualization Beat of the release notes[1] you will find
| |
| details on new software packages and major new features such as:
| |
| * '''Unified Kernel Image'''
| |
| : The <code>kernel-xen</code> package has been obsoleted by the integration of paravirtualization operations in the upstream kernel.
| |
| | |
| * '''Virtualization Storage Management'''
| |
| : Advances in libvirt now provide the ability to list, create, and delete storage volumes on remote hosts.
| |
| | |
| * '''Remote Installation of Virtual Machines'''
| |
| : Improvements in Virtualization Storage Management have enabled the creation of guests on remote host systems.
| |
| | |
| [1] http://fedoraproject.org/wiki/Docs/Beats#Virtualization
| |
| | |
| ==== Updates to Virtualization Software ====
| |
| Virtualization on Fedora is achieved through the hard work of many projects including
| |
| <code>kvm</code>,
| |
| <code>libvirt</code>,
| |
| <code>virt-manager</code>,
| |
| <code>xen</code>,
| |
| and others.
| |
| | |
| Below is a listing of some of the virtualization software found in Fedora, illustrating the updates since the release of Fedora 9.
| |
| | |
| {| class="wikitable" border="1"
| |
| |+ Virtualization Software Versions
| |
| |-
| |
| ! Software !! F9 Release !! F10 Release !! Release Notes or Changes
| |
| |-
| |
| | kvm || 65-1 || 74-5 || http://kvm.qumranet.com/kvmwiki/ChangeLog
| |
| |-
| |
| | libvirt || 0.4.2-1 || 0.4.6-3 || http://www.libvirt.org/news.html
| |
| |-
| |
| | python-virtinst||0.300.3-5 || 0.400.0-4 || http://virt-manager.et.redhat.com/download.html
| |
| |-
| |
| | virt-df || n/a || 2.1.4-2 || http://et.redhat.com/~rjones/virt-df/
| |
| |-
| |
| | virt-manager || 0.5.4-3 || 0.6.0-3 || http://virt-manager.et.redhat.com/download.html
| |
| |-
| |
| | virt-mem || n/a || 0.2.9-6 || http://et.redhat.com/~rjones/virt-mem/faq.html
| |
| |-
| |
| | virt-top || 0.4.1.1-1 || 1.0.3-2 || http://et.redhat.com/~rjones/virt-top/ChangeLog.txt
| |
| |-
| |
| | virt-viewer || 0.0.3-1 || 0.0.3-3 || http://virt-manager.et.redhat.com/download.html
| |
| |-
| |
| | xen || 3.2.0-10 || 3.3.0-1 || http://www.xen.org/download/
| |
| |-
| |
| | xenner || 0.29-2 || 0.46-3 || http://cvs.bytesex.org/xenner.html
| |
| |-
| |
| | xenwatch || n/a || 0.5.3-1 || http://cvs.bytesex.org/xenwatch.html
| |
| |}
| |
| | |
| === Enterprise Management Tools List ===
| |
| This section contains the discussion happening on the [https://www.redhat.com/mailman/listinfo/et-mgmt-tools et-mgmt-tools list]
| |
| | |
| ==== Connecting to VNC Console on Remote System Installs ====
| |
| While executing <code>virt-install</code> on a remote system, Stephan found[1]
| |
| that the installer created a VNC service listening on 127.0.0.1, and wanted to
| |
| know how to connect to this service or move it to a public interface on the
| |
| remote system.
| |
| | |
| [[DanielBerrange|Daniel P. Berrange]] answered[2] that
| |
| modifying the <code>vnc_listen</code> parameter in <code>/etc/libvirt/qemu.conf</code>
| |
| will affect the IP used, but this isn't necessary. The <code>virt-viewer</code> application will automatically tunnel[3][4] VNC connection over SSH.
| |
| | |
| <pre>virt-viewer --connect qemu+ssh://root@remotehost/system centos1</pre>
| |
| | |
| [1] http://www.redhat.com/archives/et-mgmt-tools/2008-November/msg00041.html
| |
| | |
| [2] http://www.redhat.com/archives/et-mgmt-tools/2008-November/msg00042.html
| |
| | |
| [3] http://virt-manager.org/page/RemoteSSH
| |
| | |
| [4] http://libvirt.org/remote.html
| |
| | |
| ==== Specifying Installation Media URLs ====
| |
| [[EnzoMedici|Enzo Medici]] became[1] frustrated while trying to provision Xen
| |
| domUs with <code>virt-manager</code>. "What constitutes a valid install media
| |
| URL?" "How do you get a valid install media URL for a particular Linux
| |
| distribution?"
| |
| | |
| [[ColeRobinson|Cole Robinson]] explained[2]
| |
| "We actually don't have support in the backend for fetching kernels
| |
| from Ubuntu trees" yet. "This may work at the moment though since it could be detected as a debian tree." Cole then described the installation URLs for some popular distributions.
| |
| | |
| * For Fedora, it has varied a bit for different releases, but basically whatever ends in <code>{ARCH}/os</code>:
| |
| : http://download.fedora.redhat.com/pub/fedora/linux/releases/9/Fedora/x86_64/os/
| |
| | |
| * CentOS is similar, but seems to have ARCH and os reversed:
| |
| : http://mirrors.cmich.edu/centos/5/os/x86_64/
| |
| | |
| * Debian/Ubuntu trees are everything up to the <code>install-{ARCH}</code> dir:
| |
| : http://us.archive.ubuntu.com/ubuntu/dists/etch/main/installer-i386
| |
| | |
| [1] http://www.redhat.com/archives/et-mgmt-tools/2008-November/msg00044.html
| |
| | |
| [2] http://www.redhat.com/archives/et-mgmt-tools/2008-November/msg00046.html
| |
| | |
| === Fedora Xen List ===
| |
| This section contains the discussion happening on the [https://www.redhat.com/mailman/listinfo/fedora-xen fedora-xen list].
| |
| | |
| ==== Xen No Graphical Console and CentOS ====
| |
| While creating a domU on CentOS 5.2, Jason passed
| |
| <code>--nographics</code> to <code>virt-install</code>
| |
| and received the error message: ''No console available for domain''.
| |
| Investigation <code>/var/log/xen</code> uncovered:
| |
| ''Could not initialize SDL - exiting''.
| |
| | |
| [[Cole Robinson|Cole Robinson]] responded[2] that
| |
| "This is actually a known bug: <code>xen</code> doesn't abide nographics
| |
| and tries to init <code>SDL</code>. This will almost always fail if
| |
| run through [CentOS] 5.2 <code>libvirt</code>. This bug will be fixed in [CentOS] 5.3."
| |
| The <code>--vnc</code> flag may be used as a workaround this crash in the meantime.
| |
| | |
| [1] http://www.redhat.com/archives/fedora-xen/2008-November/msg00015.html
| |
| | |
| [2] http://www.redhat.com/archives/fedora-xen/2008-November/msg00016.html
| |
| | |
| === Libvirt List ===
| |
| This section contains the discussion happening on the [https://www.redhat.com/mailman/listinfo/libvir-list libvir-list].
| |
| | |
| ==== User Mode Linux Support ====
| |
| [[DanielBerrange|Daniel P. Berrange]] improved[1] the user mode linux
| |
| driver[2] (See FWN#148[3]), by improving stability and adding documentation.
| |
| Network support is not yet available, but the driver is planned for
| |
| release with <code>libvirt</code> 0.5.0.
| |
| | |
| [1] http://www.redhat.com/archives/libvir-list/2008-November/msg00239.html
| |
| | |
| [2] http://libvirt.org/drvuml.html
| |
| | |
| [3] http://fedoraproject.org/wiki/FWN/Issue148#Experimental_User_Mode_Linux_Driver
| |
| | |
| ==== Increased Network Throughput with Large MTU ====
| |
| [[ChrisWright|Chris Wright]] created[1] a proof of concept patch
| |
| "for setting a large MTU size on a tap[2] device. With this we are able to improve net i/o throughput substantially (~40%
| |
| improvement on TX and ~130% improvement on RX). This is just RFC because
| |
| it's hardcoded to an MTU of 9000 for any tap device."
| |
|
| |
|
| [1] http://www.redhat.com/archives/libvir-list/2008-November/msg00225.html | | Contributing Writer: [[User:Dale | Dale Bewley]] |
|
| |
|
| [2] http://www.mjmwired.net/kernel/Documentation/networking/tuntap.txt | | === Fedora Virtualization List === |
| | This section contains the discussion happening on the |
| | [http://www.redhat.com/mailman/listinfo/fedora-virt fedora-virt list]. |
|
| |
|
| ==== Integration with SolidICE ==== | | ==== Virt Status Report ==== |
| With a goal of integrating <code>libvirt</code> and SolidICE[1],
| | [[JustinForbes|Justin Forbes]] |
| [[ShaharFrank|Shahar Frank]] posted[2]
| | posted<ref>http://www.redhat.com/archives/fedora-virt/2009-December/msg00056.html</ref> a Fedora virtualization status report. |
| "an initial version of the operations required for SolidICE and the proposed high level interface." All of the listed operations were storage related.
| | Justin pointed out F13 bugs<ref>http://fedoraproject.org/wiki/Virtualization_bugs</ref> now include Important and Pony classifications in addition to Blocker and Target. |
|
| |
|
| [[DanielBerrange|Daniel P. Berrange]] provided[3] a very detailed and informative response
| | <references /> |
| explaining how to to apply the <code>libvirt</code> API to these operations.
| |
|
| |
|
| SolidICE is a product of Qumranet, now Red Hat[4]. SolidICE runs virtual KVM desktops in the datacenter for display by thin clients.
| | ==== RHEL and Fedora Virtualization Feature Parity ==== |
| | Robert Day wondered how the virtualization features<ref>http://www.redhat.com/virtualization/rhev/</ref> of Red Hat Enterprise Linux 5.4 |
| | compared to Fedora 12. |
|
| |
|
| [1] http://www.qumranet.com/products-and-solutions | | [[DanielBerrange|Daniel Berrange]] |
| | explained<ref>http://www.redhat.com/archives/fedora-virt/2009-December/msg00040.html</ref> |
| | "The KVM based virtualization in RHEL-5.4 is not nearly so far behind |
| | Fedora as you might think. The {{package|libvirt}} mgmt stack in RHEL-5.4 was |
| | rebased to be near parity with [[Releases/11|Fedora 11]], and KVM in RHEL-5.4 is |
| | also pretty close to that using what's best described as a hybrid of |
| | kvm-83 and kvm-84." |
|
| |
|
| [2] http://www.redhat.com/archives/libvir-list/2008-November/msg00256.html
| | <references /> |
|
| |
|
| [3] http://www.redhat.com/archives/libvir-list/2008-November/msg00262.html
| |
|
| |
|
| [4] http://fedoraproject.org/wiki/FWN/Issue143#Other_Virtualization_News
| | ==== ==== |
| | <references /> |
|
| |
|
| === oVirt Devel List === | | ==== ==== |
| This section contains the discussion happening on the [https://www.redhat.com/mailman/listinfo/ovirt-devel ovirt-devel list].
| | <references /> |
libvirt