Displaying 20 results from an estimated 2000 matches similar to: "virsh blockcopy without undefine"
2015 Oct 14
0
Re: virsh blockcopy without undefine
On 10/13/2015 09:46 PM, Nathan Shearer wrote:
> I have a script that performs a backup with the following steps:
>
> virsh dumpxml --inactive "$DOMAIN" > "$TMP/${DOMAIN}.xml" && \
> virsh dumpxml --inactive "$DOMAIN" > "$DESTINATION_XML" && \
> virsh undefine "$DOMAIN" && \
2013 Jul 02
2
Re: backup procedure using blockcopy
> 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
2013 Jun 09
2
virsh snapshot-create and blockcopy
Hello.
I just tried the following:
virsh dumpxml --security-info gentoo-template > gentoo-template.xml
virsh snapshot-create gentoo-template
virsh undefine gentoo-template
virsh blockcopy gentoo-template vda
/opt/virt-backup-blockcopy/gentoo-template/gentoo-template.qcow2 --wait
--verbose --finish
virsh define gentoo-template.xml
virsh snapshot-delete gentoo-template --current
But if i
2013 Jun 10
2
Re: virsh snapshot-create and blockcopy
Am 10.06.13 09:07, schrieb Kashyap Chamarthy:
> On 06/09/2013 02:46 PM, Thomas Stein wrote:
>> Hello.
>>
>> I just tried the following:
>>
>> virsh dumpxml --security-info gentoo-template > gentoo-template.xml
>> virsh snapshot-create gentoo-template
>> virsh undefine gentoo-template
>
> Wait - is that really the command you used after
2013 Jul 02
2
Re: backup procedure using blockcopy
Am 02.07.13 15:42, schrieb Eric Blake:
> On 07/02/2013 06:55 AM, Thomas Stein wrote:
>>
>>> 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?
>
> Undefining
2014 Dec 22
7
Using virsh blockcopy -- what's it supposed to accomplish?
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)
2015 Jan 08
2
Re: Using virsh blockcopy -- what's it supposed to accomplish?
On Thu, Jan 08, 2015 at 01:44:58PM -0600, Gary R Hook wrote:
> On 12/24/14 4:42 AM, Kashyap Chamarthy wrote:
> >On Tue, Dec 23, 2014 at 12:38:57PM -0600, Gary R Hook wrote:
> >
> >[. . .]
> >
> >In my case, the block device is a QCOW2 disk image file. If I boot
> >without using the disk image file which has the operating system, the
> >domain will fail
2014 Dec 23
2
Re: Using virsh blockcopy -- what's it supposed to accomplish?
On Mon, Dec 22, 2014 at 03:50:58PM -0700, Eric Blake wrote:
> On 12/22/2014 03:27 PM, Gary R Hook wrote:
> > 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?
>
> Among other uses, live
2013 Jun 10
1
Re: virsh snapshot-create and blockcopy
Am 10.06.13 10:40, schrieb Kashyap Chamarthy:
> On 06/10/2013 01:20 PM, Thomas Stein wrote:
>> Am 10.06.13 09:07, schrieb Kashyap Chamarthy:
>>> On 06/09/2013 02:46 PM, Thomas Stein wrote:
>>>> Hello.
>>>>
>>>> I just tried the following:
>>>>
>>>> virsh dumpxml --security-info gentoo-template > gentoo-template.xml
2020 Mar 16
1
live storage migration using blockcopy
Hello,
I'm seeking the solution to live storage migration using blockcopy.
Previously, the "virsh undefine" is required before blockcopy.
https://www.redhat.com/archives/libvirt-users/2015-October/msg00027.html
QEMU has "block-dirty-bitmap-*" operations now, are there steps for
the live storage migration using blockcopy without undefine?
By the way, why's the purpose
2015 Apr 29
3
non failover equivalent to "virsh migrate --copy-storage-all"
Hello,
I have two servers where I can push VMs from one to the other by issuing
the command
virsh migrate --live --persistent --copy-storage-all --verbose \
test6 qemu+ssh://kvmhost2/system
on kvmhost1. I can get the VM back by issuing the equivalent command on
kvmhost2:
virsh migrate --live --persistent --copy-storage-all --verbose \
test6 qemu+ssh://kvmhost1/system
virsh
2014 Feb 05
4
Re: Can I move the disk image of the guest while it is running?
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
2015 May 19
2
Pivot without copy
Hi,
Is it possible to "pivot" to a new image without doing blockcopy or
blockpull? I know how to use snapshots and blockpull to create a new image
and pivot to using it live, but what I would like to do is to have a VM
switch from using imageA.qcow2 to image2.qcow2 while running. I don't see
why this wouldn't be possible since some of the existing libvirt tools can
do this when
2014 Oct 09
1
live migration to localhost with lvm based storage
I have lvm based (thin pool) storage on local disks. I need to move
vps from one vg on one disk to another. Does it possible to migrate to
localhost with blockcopy migration to another vg?
I'm understand that i can move lv from one vg to another, but i don't need that.
--
Vasiliy Tolstov,
e-mail: v.tolstov@selfip.ru
jabber: vase@selfip.ru
2014 Jul 02
7
virsh blockcopy: doesn't seem to flatten the chain by default
Versions
--------
(Libvirt locally built from a recent git commit -ec7b922):
$ rpm -q libvirt-daemon-kvm qemu-system-x86
libvirt-daemon-kvm-1.2.6-1.fc20.x86_64
qemu-system-x86-2.0.0-1.fc21.x86_64
Test
----
[All images are qcow2 files.]
We have this simple chain:
base <- snap1
Let's quickly examine the contents of 'base' and 'snap1' images:
2015 Jan 08
2
Re: Using virsh blockcopy -- what's it supposed to accomplish?
On 01/08/2015 12:44 PM, Gary R Hook wrote:
> I've learned how to use the blockcopy command to create a local copy in
> a simple disk file:
>
> virsh dumpxml my_domain > my_domain.xml
> virsh undefine my_domain
> virsh blockcopy --domain my_domain vda $PWD/dsk.copy.qcow2 --wait
> --verbose --finish
> virsh define my_domain.xml
>
> and the resulting copy in
2015 Jan 08
2
Re: Using virsh blockcopy -- what's it supposed to accomplish?
On 12/23/2014 05:24 PM, Gary R Hook wrote:
> I read that article.
>
> Now shut down the domain (post-pivot) which is using the new disk file,
> and start it up, without using a block device. This is the part that no
> one seems to write about, nor do I see that in your example. But thank
> you very much for your help and your articles; very much appreciated.
What do you mean by
2015 Nov 07
1
blockcopy pauses vm
2013 Feb 01
1
Migrate VM's to different storage pool?
I am searching for directions for using live block migration to copy
running vm's to a different storage pool.
Example: VM1 running on Host1, the image(s) for VM1 are stored in
/var/lib/libvirt/images. I'd like to copy the disk image(s) that VM1
is using to /nfs/images. Without stopping/pausing/powering down the
VM.
Do you have any examples or documentation of how to accomplish this
2015 Jan 16
3
How do you force a VM reboot (when its KPd etc) without interrupting a blockcopy?
My question is this:
If you have an ongoing blockcopy (drive-mirror) of a running transient VM, and the VM kernel panics, can you restart the VM without interrupting the ongoing blockcopy?
A virsh reboot won't work since if the VM is kernel panicked, its not going to respond to ACPI requests.