similar to: Disk-only internal snapshot

Hi, What's the difference between QEMU snapshot and libvirt snapshot? # qemu-img create -f qcow2 disk.img 512 Formatting 'disk.img', fmt=qcow2 size=512 encryption=off cluster_size=65536 lazy_refcounts=off # qemu-img info disk.img image: disk.img file format: qcow2 virtual size: 512 (512 bytes) disk size: 136K cluster_size: 65536 Format specific information: compat: 1.1 lazy

On 2013-09-20 15:41, Davide Guerri wrote: > Hi Thomas, Hello Davide. > I'm using this script which leverages external snapshots and > blockpull: https://github.com/dguerri/LibVirtKvm-scripts Yeah. I saw that and tried this already. But it needs to be adjusted to libvirtd-1.1.2 i think. Can you do this? I fiddled a litte bit around but wasn't realy successfull. hn

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

Hi, i have a strange situation: A domain is still running where domblklist points to a snapshot file and also dumpxml says the current drive is that snapshot file. But the file has been deleted hours ago. And the domain is still running. I can login via ssh, the database and the webserver are still running, domain is performant. How can that be ? Also lsof shows that the file is deleted:

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

Hi. I'm following here a conversation that was initiated on Kashyap's website [1]. We have a server we use as a host for virtual machines using KVM (virt-manager used for VM creation) and we would like to setup VM backups. Basically, we're thinking of a backup schedule like "keep 7 daily and 4 weekly backups". We'd rather not shutdown the VM every day so live backups

On 2013-09-20 16:05, Davide Guerri wrote: > Hi > >> hn LibVirtKvm-scripts # ./fi-backup.sh -b /opt/virt-backup-local/ -d >> serve.lordcritical >> [DEB] qemu-img version '1.6.0' is supported >> [DEB] KVM version '1.6.0,' is supported >> [DEB] Snapshot for domain 'serve.lordcritical' requested >> [DEB] Using timestamp

Hi, dom0: Debian Lenny 2.6.26-2-xen-amd64, domU: same. Xen 3.2-1 After resizing a LV on dom0, Xen is not reporting the new extended size to the PV domU even though dom0 is well aware of the new size. I''ve rebooted domU (not dom0 yet as that''s running a lot of other domU''s). The LV I tried to resize is encrypted. Resizing unencrypted volumes works as expected. dom0:~#

Assuming the VM is not running, and we have a base (raw, sparse) with a snapshot (qcow2) on top of it. Is there any issue with running virt-sparsify on the base image? I assume deleted blocks in the base can be sparsified, since they are either still deleted on the snap (which is fine) or were written in the snap (which is fine either and does not change or matter for the base image). Can I assume

Please can someone take a look at the attached file which shows the output on my machine of zfs list -r -t filesystem,snapshot -o space rpool/export/home/matt The USEDDS figure of ~2GB is what I would expect, and is the same figure reported by the Disk Usage Analyzer. Where is the remaining 13.8GB USEDSNAP figure coming from? If I total up the list of zfs-auto snapshots it adds up to about 4.8GB,

Hi I am having a problem deleting snapshots, gluster is failing to unmount them. I am running centos 7.3 with gluster-3.10.2-1 here is some log output: [2017-05-31 09:21:39.961371] W [MSGID: 106057] [glusterd-snapshot-utils.c:410:glusterd_snap_volinfo_find] 0-management: Snap volume 331ec972f90d494d8a86dd4f69d718b7.glust01-li.run-gluster-snaps-331ec972f90d494d8a86dd4f69d718b7-brick1-b not found

Hello everybody, I would like to be able to spawn several domains from a given snapshot. Here's a possible scenario: - I start from disk image A.qcow2. - I made some changes to A and I take different snapshots: 1 - 2 - 3 - While A is still running I would like to run domains B and C from snapshot 2 I don't want to revert a domain, I want to create new ones. The original should be

Hi, quick question about snapshot mounting: Were there changes in 3.12 that were not mentioned in the release notes for snapshot mounting? I recently upgraded from 3.10 to 3.12 on CentOS (using centos-release-gluster312). The upgrade worked flawless. The volume works fine too. But mounting a snapshot fails with those two error messages: [2017-11-13 08:46:02.300719] E

Hi, I am using libvirt and virsh for my application. I am trying to manage snapshots for my infrastructure. All virsh commands are working fine like snapshot-create, delete, list, revert, current. But when I try to do the same using libvirt, I get out of memory error. Here are the commands that i execute on my host in a python shell... import libvirt conn =

Hi Richard, Thanks for posting this. This issues is caused as part of the regression in 3.12.0 version [1], and is already fixed in 3.12.3 [2] version (3.12.3 is tagged now with couple of more subdirectory mount related fixes). [1] - https://bugzilla.redhat.com/show_bug.cgi?id=1501235 [2] - https://review.gluster.org/#/c/18506/ If you don't want to change the versions, then please remove

Hello. Is someone performing incremental backups via libvirt for qemu/kvm machines? I'm still having a hard time to find a nice procedure. I mean is it possible to make a full backup of an image on monday a do the next days of the week incremental backups? Another way could be mount the image and rsync its contents. Does that makes sense? Also i read in qemu changelog: --- Support for a

Hi all, it's possible to change/add the QoS settings for a running domain? I edited the domain definition with virsh but it seems to have no effect until I shut down the domain. libvirt version 0.9.13 kvm-qemu version 1.2.0 Best, Davide. -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 5930 bytes Desc:

Hi all, I got a problem while trying to set up a Samba 3.4 Server in hybrid-mode. After trying for some time I managed doing a merged-build of Samba3 and Samba4 and I can now start samba4 without getting errors. However, the same is not true for Samba3: starting it, I get the below error message. Has anyone an idea about what the reason could be? Did I miss anything during build/setup?

So how does one accomplish this if say the snap is now deemed the copy of interest? I am hoping dd is not the only answer:) Thanks! jlc

Hello, all. I work with lvm ( kernel 2.4.17 + ext3-2.4-0.9.17-2418p3 patch ) but i can't snapshot a ext3 fs directly # lvcreate --snap --name snap --size +1G /dev/vgtest/lvtest # mount -o ro -t ext3 /dev/vgtest/lvtest /snap /mnt/snap ext3 can't work , ext2 work If I mount readonly the etx3 filesystem, snapshot-it, and remount rw the filesystem ( and ro the snapshot ) it work