Displaying 20 results from an estimated 6000 matches similar to: "snapshot with libvirt tools or with lvm tools ?"
2015 Dec 01
6
snapshot of running vm's
Hi,
i'd like to create snapshots of my running vm's. I have several hosts with
SLES11 SP4 64bit. I use libvirt 1.2.5-7.1 . VM's are Windows 7, SLES,
Ubuntu, Opensuse.
I use raw files for the vm's.
I try to orientate myself by
http://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit .
The hosts are backuped every night by a network based backup solution
(Legato).
My
2015 Dec 03
3
Re: snapshot of running vm's
> -----Oorspronkelijk bericht-----
> Van: Lentes, Bernd [mailto:bernd.lentes@helmholtz-muenchen.de]
> Verzonden: donderdag 3 december 2015 13:54
> Aan: libvirt-ML
> CC: Dominique Ramaekers
> Onderwerp: RE: snapshot of running vm's
>
> > ...
> > >
> > > Hi,
> > >
> > > i have inserted:
> > >
> > > <channel
2018 Mar 14
2
rsync of a reflink from OCFS2
Hi,
i have some virtual machines running on logical volumes formatted with OCFS2. I'd like to snapshot the running guests
to backup them easily afterwards. The files of the guests are big (100 - 300GB), but the content changes only slowly.
So i thought that rsync would be a great benefit because it justs transfers the difference between the current file and
the one backuped one day before. I
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
2016 Mar 02
3
VM's in a HA-configuration - synchronising vm config files
Hi,
i'd like to establish a HA-Cluster with two nodes. My services will run inside vm's, the vm's are stored on a FC SAN, so every host has access to the vm's. But how can i keep the config files (xml-files under /etc/libvirt/qemu) synchronised ? Is there a possibility to store the config files somewhere else ? E.g. a partitition with ocfs2 on the SAN ?
If not, what would you do
2017 Apr 18
3
R 3.4 has broken C++11 support
Hi,
This commit (I?m using the mirror to have a working link) broke C++11 compilation.
Before (and still now, according to the comments in the configure script), it?s sufficient to just have ?SystemRequirements: C++11? in the DESCRIPTION file.
But now ?R CMD install? fails with ?C++11 standard requested but CXX11 is not defined?, which is, according to the documentation , a lie.
I can?t
2017 Apr 19
5
R 3.4 has broken C++11 support
Hi!
Well, my linux distribution has very recent versions
of everything, so a working C++11 compiler exists:
$ gcc --version | head -n1
gcc (GCC) 6.3.1 20170306
Could wrong ./configure options be at fault here? See:
https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=r-devel#n40
My sessionInfo():
$ R-devel --slave -e 'sessionInfo()' | head -n3
R Under development (unstable)
2017 Apr 19
4
R 3.4 has broken C++11 support
Hi Dirk and Martyn,
> That looks fine. Can you please give a reproducible example of a package
> that compiles correctly on R 3.3.3 but not with R 3.4.0 or R-devel.
here you go, it?s pretty much the simplest package possible that needs C++11:
https://github.com/flying-sheep/cxx11test
> Maybe you can share with us how you configure the build of R-devel?
Sure, in the mail you quoted, I
2016 Mar 02
1
Re: VM's in a HA-configuration - synchronising vm config files
----- On Mar 2, 2016, at 3:15 PM, Dominique Ramaekers dominique.ramaekers@cometal.be wrote:
>>Van: libvirt-users-bounces@redhat.com [mailto:libvirt-users-bounces@redhat.com]
>>Namens Lentes, Bernd
>>Verzonden: woensdag 2 maart 2016 15:04
>>Aan: libvirt-ML
>>Onderwerp: [libvirt-users] VM's in a HA-configuration - synchronising vm config
>>files
>>
2016 Nov 08
2
proplems installing R 2.5 on Ubuntu 14.04
----- Am 8. Nov 2016 um 15:26 schrieb Johannes Ranke johannes.ranke at jrwb.de:
> Hi
>
> try
>
> apt-get build-dep r-base
>
> this installs the headers required for building current R, which probably also
> covers older versions - at least it will give you X11 headers.
>
> Good luck,
>
> Johannes
>
>
Hi Johannes,
i tried that and it didn't
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 Mar 01
3
which is the config file for a vm ?
Hi,
i have a weird problem. I have a vm (KVM) which seems to run fine. I believe the respective config file for this vm is /etc/libvirt/qemu/MausDB.xml. This is it:
=========================================================
<domain type='kvm'>
<name>MausDB</name>
<uuid>d4c7956c-b57f-967a-0454-99835a3a740b</uuid>
<memory
2015 Nov 30
1
virsh uses internally qemu-img ?
Hi,
i read that virsh uses internally qemu-img (http://serverfault.com/questions/692435/qemu-img-snapshot-on-live-vm).
Is that true ? so snapshotting a running vm with virsh or qemu-img is the same ?
Bernd
--
Bernd Lentes
Systemadministration
institute of developmental genetics
Gebäude 35.34 - Raum 208
HelmholtzZentrum München
bernd.lentes@helmholtz-muenchen.de
phone: +49 (0)89 3187 1241
2018 Mar 09
0
Re: snapshot with libvirt tools or with lvm tools ?
----- On Mar 9, 2018, at 4:39 PM, Bernd Lentes bernd.lentes@helmholtz-muenchen.de wrote:
> 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
2018 Feb 16
2
Re: snapshot of a raw file - how to revert ?
On Fri, Feb 16, 2018 at 04:37:38PM +0100, Lentes, Bernd wrote:
[...]
> Hi,
>
> again thanks for your quick answer. I had a look on
> https://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit
> and i liked it. I'm thinking of upgrading my systems to SLES 12 SP3.
> With that i have qemu 2.9.1 and libvirt 3.3.0, so it should work.
Yep.
> Does this procedure
2018 Mar 14
3
rsync of a reflink from OCFS2
no backup - no mercy
----- On Mar 14, 2018, at 2:19 PM, Ben RUBSON ben.rubson at gmail.com wrote:
> On 14 Mar 2018, Lentes, Bernd via rsync wrote:
>
>> I would now expect a rsync from the snap would transfer just some megay
>> bytes to the file from the day before.
>> But it doesn't:
>>
>> ha-idg-1:/cluster/guests/servers_alive # time rsync -av --stats
2018 Oct 15
3
snapshots with virsh in a pacemaker cluster
Hi,
i have a two node cluster with virtual guests as resources.
I'd like to snapshot the guests once in the night and thought i had a procedure.
But i realize that things in a cluster are a bit more complicated than expected :-))
I will shutdown the guests to have a clean snapshot.
I can shutdown the guests via pacemaker.
But then arises the first problem:
When i issue a "virsh
2014 Oct 28
3
wrong time in guest logs
Hi,
i have several vm's running on KVM hosts. Recently i found out that the time in the log-files of the guests (/var/log/libvirt/qemu/xxx.log) is wrong. The time on the guest itself is right, just the time in the log-files is one hour back. Windows and linux vm's are affected. Also on another host the same. Changing the clock offset does not have any influence, still the wrong time in
2015 Mar 16
2
still possible to use traditional bridge network setup ?
Hi,
i'm currently installing a SLES 12 64bit system. libvirt-client-1.2.5-13.3.x86_64 and libvirt-daemon-1.2.5-13.3.x86_64.
Formerly I created my vm's (KVM) using a traditional bridge in my host systems, mostly SLES 11 SP3.
But with SLES 12 I don't succeed. I can use the macvtap device in the host, but I like to be able to communicate between host and guest.
Is the traditional bridge
2016 Nov 08
2
proplems installing R 2.5 on Ubuntu 14.04
Hi,
i'd like to install R 2.5 on an Ubuntu 14.04.
I have a special software requiring this old version.
While ./configure, i get the following error:
checking for mbstate_t... yes
checking for X... no
configure: error: --with-x=yes (default) and X11 headers/libs are not available
The problem is that i don't know which headers or libraries are missing, and when i search with aptitude in