similar to: Associating a statefile with an image

Hi , I was previously using xen and currently moved to KVM. I am using libvirt to manage these VMs. In den's credit scheduler , I had the ability to set a cap on the cpu usage for a VM. But I was not able to find a similar substitute in KVM. I find that we can use cgroups to provide shares for VM but that will be more like weight based and it doesn't set a hard cap for that VM. I tried

Hi, I am trying to connect to a server running esx and collect system metrics like cpu usage, network and disk iops. I am able to establish the connection successfully and obtain VM information such as ids, domain names, config xml etc. But I am unable to collect statistics. I am using the python interface and if I do , conn=libvirt.openAuth(uri, auth, 0) dom-conn.lookupByID(id) // Where id is

Hi, if make and gmake are different on any machine (for example Solaris with gnu make as gmake), then compiling fails with gmake. A small transcript follows. If i make a link from gmake to make as under linux, then it works. This problem exists in all versions of R. g77 -O2 -fPIC -c sslvrg.f -o sslvrg.o g77 -O2 -fPIC -c stxwx.f -o stxwx.o ../../../../bin/R SHLIB -o modreg.so bsplvd.o bvalue.o

Hi all, today i tried to enable HA on xcp 1.6 but when i enable it through xencenter I received the following error in xensource.log: Dec 5 17:56:26 xcp1 xapi: [ info|xcp1|490661|Async.pool.enable_ha R:9119ce88ffcb|xapi_ha] Using statefile: /etc/xensource/static-vdis/0/disk Dec 5 17:56:26 xcp1 xapi: [debug|xcp1|490661|Async.pool.enable_ha R:9119ce88ffcb|xapi_ha]

Hi, Recently We've upgraded some KVM hosts from Fedora 29 to Fedora 30 and now experience broken VM configurations on filesystem after virsh blockcommit. Commands "virsh dumpxml ..." and "virsh dumpxml --inactive ..." is showing diffrent configuration than the one on filesystem. In case of restart libvirtd or system reboot, there are broken VM xml configurations on

Hello. I have a strange error with one of my VMs. If i use dumpxml to save a VM description the source part of the network part is missing. This prevents redifining the machine from the dumped xml file: This is how it looks before dumpxml: <interface type='bridge'> <mac address='52:54:00:34:a1:56'/> <source bridge='br406'/>

Hi all, Do you have any idea about this error? virsh # dumpxml csg01win7test > domain.xml error: unexpected data '>' Regards, Allen 2014-10-28 Allen Qiu

If I'm using the SR-IOV Pool assignment method (from http://wiki.libvirt.org/page/Networking#Assignment_from_a_pool_of_SRIOV_VFs_in_a_libvirt_.3Cnetwork.3E_definition ), how would I check how many virtual functions are already in use? Is there a method other then looping through all the active guests and determining if they're using the SR-IOV interface?

Hi there, I'm running KVM under Openstack . When I give virsh list command, I see some VM in NON persistent state. What does it mean? How can I move it to a persisten state ? I found that I cannot make a snapshot, from Openstack , of a machine which is in a NON PERSISTENT state. Regards Fiorenza -- Spazio Web S.r.l. V. Dante, 10 13900 Biella Tel.: +39 015 2431982 Fax.: +39 015 2522600

Thank you Eric, On 2014-02-05 17:23, Eric Blake wrote: > Yes, live storage migration is possible; although at the moment, qemu is > lacking a way to restart the operation if it fails midstream, so libvirt > only allows the operation if you are willing to temporarily make your > guest transient. What does this mean? Will I loose anything if - for example - there is not enough space on

So I notice that some operations by libvirt such as creating a snapshot actually change the source of the active disk image for a domain without requiring a restart of the vm. How can this be achieved manually? There are instances where I am manipulating files with qemu-img or virsh commands and afterward need to change what file the vm is using as its disk. One example is when deleting a

Greetings, when execute lspci inside my vm linux guest, I see this: :/# lspci | grep -i scsi 03:00.0 SCSI storage controller: Red Hat, Inc Virtio block device (rev 01) I don't see any such address in my xml file, is it possible to move that controller to another pci addr? Thanks, Dagg.

On 3/23/2015 12:49 PM, Michal Privoznik wrote: > On 23.03.2015 16:02, Fiorenza Meini wrote: >> Hi there, >> I'm running KVM under Openstack . >> >> When I give virsh list command, I see some VM in NON persistent state. >> What does it mean? How can I move it to a persisten state ? > You can do that by running: > > virsh dumpxml $dom > dom.xml

Hi, i tried adding metadata to Network XML ( NOT DOMAIN XML) but it removes it as soon as i save here's my network XML <network> <name>bridgeTest0</name> <uuid>cf2aae7a-b459-459b-ba2c-399190607629</uuid> <metadata> <app1:foo xmlns:app1="http://app1.org/app1/"> <app1:test>testing!</app1:test>

Dear Sir/Madam: I use virt-manager to create a new virtual machine(it's name is generic), then I edit generic to set it's cpu_mode as 'host-model', and I start it, but when dumpxml generic, it's cpu_mode is changed as 'custom'. I want to know that why it is? And what's the principle of dumpxml? Thanks! A user of libvirt

> virsh dumpxml --security-info dom > dom.xml > virsh undefine dom Hello. Someone was talking about this (undefining the VM) would not be neccessary anymore when qemu-1.5 has been released. Is that true? > virsh blockcopy dom vda /path/to/backup-vda > polling loop - check periodically until 'virsh blockjob dom vda' > shows 100% completion > virsh suspend

Greetings Jano, > Sent: Thursday, May 03, 2018 at 1:44 PM > From: "Ján Tomko" <jtomko@redhat.com> > To: daggs <daggs@gmx.com> > Cc: libvirt-users@redhat.com > Subject: Re: [libvirt-users] changing pci addr of SCSI storage controller: Red Hat, Inc Virtio block device (rev 01) > > On Wed, May 02, 2018 at 07:29:23PM +0200, daggs wrote: > >Greetings,

I am experimenting with the blockcopy command, and after figuring out how to integrate qemu-nbd, nbd-client and dumpxml/undefine/blockcopy/define/et. al. I have one remaining question: What's the point? The "replication" disk file is not, from what I can ascertain, bootable. I expect this operation to create a pristine copy of my source qcow2 file (at a given point in time)

Hey When I want to take a snapshot for a Domain by using virDomainSnapshotCreateXML. The Error as below happen: libvir: QEMU error : Requested operation is not valid: Disk '/var/lib/libvirt/images/fedora-qcow.qcow2' does not support snapshotting The snapshot Configuration is : <domainsnapshot> <description>Snapshot of OS install and updates</description>