Displaying 20 results from an estimated 800 matches similar to: "Live Disk Backup"
2016 Jul 26
0
Re: Live Disk Backup
Am 26.07.16 um 10:25 schrieb Prof. Dr. Michael Schefczyk:
> Dear All,
>
> using CentOS 7.2.1511, and libvirt from ovirt repositories (currently 1.2.17-13.el7_2.5, but without otherwise using ovirt) I am regularly backing up my VMs which are on qcow2 files. In general, I am trying to follow http://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit
>
> A typical backup
2018 May 08
1
mount failing client to gluster cluster.
Hi,
On a debian 9 client,
========
root at kvm01:/var/lib/libvirt# dpkg -l glusterfs-client
8><---
ii glusterfs-client 3.8.8-1 amd64
clustered file-system (client package)
root at kvm01:/var/lib/libvirt#
=======
I am trying to to do a mount to a Centos 7 gluster setup,
=======
[root at glustep1 libvirt]# rpm -q glusterfs
glusterfs-4.0.2-1.el7.x86_64
2017 May 11
1
Samba 4.6.x as secondary DC to Windows 2008 R2
Dear All,
I am running a two location SOHO network with a Microsoft AD on a Windows 2008 R2 server. In detail, the infrastructure is as follows:
Primary location:
- 1 DC on Windows 2008 R2 hardware server
- 1 DC on Windows 2008 R2 virtual server
- 2 DC on Windows 2016 virtual servers (forest functional level 2008)
- 1 DC on Samba 4.6.2 on Debian Jessie
Secondary location:
- 1 DC on Samba 4.6.3
2014 Oct 16
2
conversion issue on NFS shares
Hi
T'm trying to convert XEN virtual machine image into raw. Source file is on
NFS export and destination is also on nfs export. (both exports are mounted
on migration servers RW access). I'm getting permission denied.
I have RW access to both exports - I can create, delete objects on both
exports from migration server. But when I copy img file onto migration
server local filesystem,
2015 Aug 31
2
VM locking
Dear All,
I am trying to use VM (disk) locking on a two node Centos 7 KVM cluster. Unfortunately, I am not successful.
Using virtlockd (https://libvirt.org/locking-lockd.html), I get each host to write the zero length file with a hashed filename to the shared folder specified. Regardless of which host I start a VM (domain) on, they do produce the identical filename per VM. What does not work,
2011 Oct 24
2
Unable to acquire lock
Hello,
I am trying to execute virsh commands on a host but it is giving errors
due to failure in acquiring lock.
root at kvm01:~# virsh suspend blindone
error: Failed to suspend domain blindone
error: Timed out during operation: cannot acquire state change lock
Any suggestions how can we figure out possible reasons.
--
Jatin
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2018 Sep 07
3
how "safe" is blockcommit ?
Hi,
currently i'm following https://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit. I 'm playing around with it and it seems to be quite nice.
What i want is a daily consistent backup of my image file of the guest.
I have the idea of the following procedure:
- Shutdown the guest (i can live with a downtime of a few minutes, it will happen in the night).
And i think
2017 Jun 22
4
recovering from deleted snapshot
I have an automatic process setup. It's still pretty new and obviously
in need of better error handling because now I find myself in a bad state.
I run snapshot-create-as across all my vms, then do zfs replication to
the target backup system, then blockcommit everything.
virsh snapshot-create-as --domain $vm snap --diskspec
$DISK,file=$VMPREFIX/"$vm"-snap.qcow2 --disk-only --atomic
2015 Oct 13
2
virsh can't support VM offline blockcommit
Hi everyone!
I use the libvirt(version: 1.2.2) and QEMU(version: 2.2.1) to test qemu snapshot features:
I tried virsh blockcommit when VM offline, the virsh blockcommit failed: the error messase as below:
error: Requested operation is not valid: domain is not running
when I start the VM, the virsh blockcommit work fine!
my question is:we need
2020 Feb 07
2
does the guest have a snapshot ?
Hi,
i'm cuurently a bit confused if a guest does have a valid snapshot or not.
This is the xml:
...
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2'/>
<source file='/var/lib/libvirt/images/crispor_1604/crispor_1604.sn'/>
<backingStore type='file' index='1'>
<format
2018 Sep 10
1
Re: how "safe" is blockcommit ?
----- On Sep 7, 2018, at 9:26 PM, Eric Blake eblake@redhat.com wrote:
> On 09/07/2018 12:06 PM, Lentes, Bernd wrote:
>> Hi,
>>
>> currently i'm following
>> https://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit. I 'm
>> playing around with it and it seems to be quite nice.
>> What i want is a daily consistent backup of my image file
2016 May 03
2
Ubuntu 14.04 virsh 1.2.2 blockcommit hangs at 100% / command 'blockcommit' doesn't support option --pivot
Hello All,
I think I have seen this in previous bugs. Trying to live backup qcow2
images. I am able to virsh snapshot-create-as and virsh domblklist shows
correct new source, but I am unable to commit back changes to qcow base. I
get the above error.
Libvirt at 1.2.2-0ubuntu13.1.17
Qemu is (2.0.0+dfsg-2ubuntu1.22)
I tried compiling latest libvirt, but cannot get it to connect to socket on
2019 May 30
2
Using qemu active blockcommit results in 'Permission denied' error
Hello all,
I tried following this guide:
https://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit
Unfortunately when I try to do the final virsh blockcommit step I always
get the following error:
error: internal error: unable to execute QEMU command 'block-commit':
Could not reopen file: Permission denied
I checked directory und image file permissions, app-armor profiles
2018 Sep 08
1
Re: how "safe" is blockcommit ?
Il 07-09-2018 21:26 Eric Blake ha scritto:
> We're also trying to add support for incremental backups into a future
> version of libvirt on top of the qemu 3.0 feature of persistent
> bitmaps in qcow2 images, which could indeed guarantee that you
> transfer only the portions of the guest disk that were touched since
> the last backup. But as that's still something I'm
2015 Oct 20
2
Re: failed to pivot job for disk vdc
Hello,
it happened with another VM:
# virsh snapshot-create-as --domain rasa sn1 --diskspec
vda,file=/var/lib/libvirt/images/rasa-sn1.qcow2 --disk-only
--atomic --no-metadata
# virsh blockcommit rasa vda --active --verbose --pivot
Block commit: [100 %]error: failed to pivot job for disk vda
error: block copy still active: disk 'vda' not ready for pivot yet
# virsh domblklist rasa
2018 Mar 09
2
snapshot with libvirt tools or with lvm tools ?
Hi,
i asked already a time ago about snapshots. I have some guests, each resides in a raw file, placed on an ext3 fs which is on top of a logical volume, for each guest a dedicated lv.
The raw is not a "must have", if there are obvious reasons i can convert them to a qcow2.
What i want is a consistent backup of each guest taken overnight. If possible i won't have downtime.
I can use
2015 Dec 07
3
Efficient live disk backup with active blockcommit : Failed 'block-commit': Could not reopen file: Permission denied
Hi ,
Working on the simple POC : Advanced snapshot using libvirt and qemu .
Following are the exact steps which are followed .
1. Created as base VM - Ubuntu 15.10 with following libvirt and qemu
versions
Using library: libvirt 1.2.16
Using API: QEMU 1.2.16
Running hypervisor: QEMU 2.3.0
QEMU emulator version 2.3.0 (Debian 1:2.3+dfsg-5ubuntu9.1), Copyright
(c) 2003-2008 Fabrice
2013 Mar 04
1
Live external snapshot coalescing
On standard Fedora 18 I was attempting blockcommit on a *live* VM,
libvirt said it was not supported, so I tried fedora-virt-preview as
recommended.
We found a problem with qemu 1.4, there seems to be an acknowledged bug,
a missing library.
On a different system we loaded Fedora 18, and then pulled qemu (1.3)
and libvirt (1.0.2) from rawhide.
I tried blockcommit with domain shut down, it said
2015 Oct 19
1
Re: virsh can't support VM offline blockcommit
Hi Kashyap Chamarthy:
thank you very much for answer my question:
一: lead to VM filesystem becoming read-only
1: test case
it lead to VM filesystem becoming read-only test case as follows:
we want to snapshot for VM , to obtain VM incremental data,and use virsh blockcommit,qemu-img commit,qemu-img rebase to shorten snapshot chain.
Details are as follows(when VM running state, we perform the
2014 Feb 06
2
Re: Can I move the disk image of the guest while it is running?
----- Original Message -----
> From: "Eric Blake" <eblake@redhat.com>
> To: "Andrew Martin" <amartin@xes-inc.com>
> Cc: "Gergely Horváth" <gergely.horvath@inepex.com>, libvirt-users@redhat.com
> Sent: Thursday, February 6, 2014 9:31:29 AM
> Subject: Re: [libvirt-users] Can I move the disk image of the guest while it is running?
>