Displaying 20 results from an estimated 1000 matches similar to: "Live migration with non-shared ZFS volume"
2017 Apr 28
1
Re: Live migration with non-shared ZFS volume
Hi Martin,
in the meantime, I've found a solution which I consider at least acceptable:
1. create zfs snapshot of domain disk (/dev/zstore/test-volume)
2. save original XML domain definition
3. create snapshot in libvirt like this:
virsh snapshot-create --xmlfile snap.xml --disk-only --no-metadata
test-domain
snap.xml:
<domainsnapshot>
<disks>
<disk
2017 Apr 28
0
Re: Live migration with non-shared ZFS volume
On Tue, Apr 04, 2017 at 12:04:42PM +0200, Daniel Kučera wrote:
>Hi all,
>
Hi,
I caught your mail in my Spam folder for some reason, maybe the same
happened for others. I don't have that deep knowledge of the snapshots,
but I'm replying so that if someone else has it in Spam and they have
more insight, they can reply.
>I'm using ZFS on Linux block volumes as my VM storage
2011 Sep 27
2
Snapshot Error
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>
2013 Mar 28
1
Snapshot without volumes temporarily
Hello,
I want to do a snapshot which the VM has volumes.
But I want to skip the volume check when I do the snapshot. (Which means I
want to do a snapshot without detaching the volume)
So I try to write a snapshot XML refer by
http://libvirt.org/formatsnapshot.html as following:
vda is my VM basic disk (qcow2)
vdb is a volume (raw)
================ t1.xml ===============
<domainsnapshot>
2017 May 17
2
Re: Callback re-registration after libvirtd restart
No, I'm not, I'm calling it sooner:
func libvirt_start() {
libvirt.EventRegisterDefaultImpl()
event_listen()
}
S pozdravom / Best regards
Daniel Kucera.
2017-05-17 15:47 GMT+02:00 Daniel P. Berrange <berrange@redhat.com>:
> On Wed, May 17, 2017 at 03:41:09PM +0200, Daniel Kučera wrote:
> > Hi Daniel,
> >
> > I tried that but it doesn't
2017 May 17
2
Re: Callback re-registration after libvirtd restart
Hi Daniel,
I tried that but it doesn't work:
func libvirt_close_callback(conn *libvirt.Connect, reason
libvirt.ConnectCloseReason){
log.Printf("close callback: %+v", reason)
}
func event_listen() {
log.Printf("event_listen %s", conf.Libvirt.LocalUrl)
hv, err := libvirt.NewConnect(conf.Libvirt.LocalUrl)
err =
2019 Aug 13
2
Recover snapshots from qcow images
Hi guys,
I had to move to the new laptop week ago and I screw migration of my virtual
machines. I recovered my virtual machines on the new laptop (virsh define)
using the backed up xml files, but I am missing any file with metadata about
snapshots. The original storage is cleaned so I cannot take these files
anymore.
Using qemu-info I can see my snapshots inside the qcow images, but libvirt
2019 Mar 15
1
KVM - full system ( disk+memory) snapshot by excluding the raw disks
Hi There ,
I have KVM VM with 4 qcow2 disks and 2 raw disks . when I try to take full system snapshot by excluding raw disks . it is give below error . can you help me how to fix this ?. or is it possible to take full system snapshot in this case .?.
When I change XMl as internal snapshots for raw disks . It throws a message snapshot are not supported on war disks .
2012 Aug 02
2
Excluding RAW disk from snapshot
I have an oVirt engine node that currently runs the system on a qcow2
based virtual disk, and an NFS export volume on RAW. I'd like to take
a snapshot before a somewhat risky upgrade of oVirt and can't with the
raw image attached.
Looking at the documentation for the snapshot XML, I created this XML
file for the snapshot
<domainsnapshot>
<name>20120802</name>
2014 May 22
2
Live snapshots of a single block device
Hello,
I am working on a script to automatically create live snapshots of running VMs using qemu-kvm 1.4.0 and libvirt 1.0.2. If a VM has multiple disks, I'd like to back them up individually with separate calls to snapshot-create-as, so I can more easily manage the disk images. The code I have now is essentially as follows:
virsh snapshot-create-as --domain "vmname" --name
2017 May 17
1
Re: Callback re-registration after libvirtd restart
2017-05-17 15:52 GMT+02:00 Daniel P. Berrange <berrange@redhat.com>:
> On Wed, May 17, 2017 at 03:49:45PM +0200, Daniel Kučera wrote:
> > No, I'm not, I'm calling it sooner:
> >
> > func libvirt_start() {
> > libvirt.EventRegisterDefaultImpl()
> > event_listen()
> > }
>
> Well the following example works as expected for me
2014 Jun 03
2
LIbvirt Python Snapshot -Domain Crashing
Hi,
I'm using libvirt(1.0.0) with python, for managing virtual machines..
but while taking multiple snapshot domain is crashing...
Snapshot XML
-------------------------
<domainsnapshot>
<name>snp1</name>
<creationTime></creationTime>
<description>Description</description>
<state></state>
<domain>
2011 Oct 12
1
XML file format for snapshot-create
I've created a very basic snapshot XML file, to allow for a description of
the snapshot. However when running the virsh command, it doesn't like the
formatting.
# virsh snapshot-create proxy_0 /vmstore/proxy_0/proxy_0_ss.xml
error: XML description for failed to parse snapshot xml document is not well
formed or invalid
This are the XML file contents...
# cat proxy_0_ss.xml
2019 Jul 03
1
libvirt-python Create External Snapshot
Hi Libvirt,
Does libvirt-python currently support the creation of external snapshots?
I ran
domain.snapshotCreateXML(xml)
where xml is
<domainsnapshot>
<name>snap1</name>
<description>Snapshot of OS install and updates</description>
<disks>
<disk name='vda'>
<source
2012 Apr 26
1
proper way to snapshot
Hi,
While there are a few howtos floating around, what is the standard way to snapshot guests?
I went through and converted from raw to pre allocated meta data qcow2 images for this purpose.
Some howtos suggest to do an xml snapshot file as so;
<domainsnapshot>
<name>UbuntuServer_10.10-16032011</name>
<description>Snapshot of OS install and
2012 Nov 28
1
error: argument unsupported: unable to handle disk requests in snapshot
Hello, a problem occurred during making a snapshot for a guest, ask for help...
1. the xml for snapshotdomain like this:
# cat deployment.1
<domainsnapshot>
<name>a</name>
<disks>
<disk name='/home/qcow2/disk.0'>
<driver type='qcow2'/>
<source file='/home/qcow2/disk.3'/>
</disk>
</disks>
2018 Mar 20
2
About libvirt domain snapshot problem(for single disk snapshot)
Hi, dear friend.
My guest has two disks, vda and vdb. both are qcow2 local file.
When guest running state.
I want to take the vda snapshot of guest(just vda, no include vdb). but I met libvirt do snapshot for all disks of guest.
About methods for follow:
1、
``` bash
virsh
snapshot-create-as 8x0lbzvS --name sys_disk3 --disk-only --diskspec "vda,snapshot=external"
```
``` result
2014 Jun 03
1
Re: LIbvirt Python Snapshot -Domain Crashing
Martin,
Actually domain doesn't crash, but it state got changed to pause, till the
snapshot action got complete.
Its a time consuming process.
so here is my requirement.
I want to take snapshot of a Running Domain on every 3 hours,( at a later
point of time It should be possible to revert to the actual domain state
when I took the snapshot), I'm using libvirt APIs python bindings,
there
2017 May 17
2
Callback re-registration after libvirtd restart
Hi all,
I'm using libvirt-go and I following code to listen for lifecycle events:
func event_listen() {
log.Printf("event_listen %s", conf.Libvirt.LocalUrl)
hv, err := libvirt.NewConnect(conf.Libvirt.LocalUrl)
lifecycleCallback := func(c *libvirt.Connect, d *libvirt.Domain, event
*libvirt.DomainEventLifecycle) {
event_message(c, d, "lifecycle", event)
2013 Jun 26
2
Re: snapshot-create-as for a single disk not all disks
try snapshot-create-as like below:
virsh snapshot-create-as vm --disk-only --diskspec "vda,snapshot=external"
2013/6/25 cmcc.dylan <dx10years@126.com>
>
> Hi, everyone,
> I have found the API snapshotCreateXML() can create a snapshot for a
> virtual machine, and the xml configuration file - snapshot.xml as folllows:
> <domainsnapshot>
>