search for: quiescing

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

Hi all. I'm having issues while creating snapshots. I posted on Stack Exchange [1], but figured I might get more success here. My VM backup script fails while creating the snapshot. virsh snapshot-create-as --domain machine_1 snap --diskspec vda,file=/srv/test/test-snap.qcow2 --disk-only --atomic --no-metadata --quiesce error: Requested operation is not valid: domain is

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

> >> --live only makes sense when mixed with memory snapshots (with --memspec); > >> but > >> as you are doing a --disk-only snapshot, it doesn't help (I'm not sure if > >> it > >> will error out as mutually exclusive or just be silently ignored, > >> without reading the code). > > I'm using this code in a script for creating

Hi Eric. Thank you so much for your quick and relieving answer. Le 2015-09-11 17:05, Eric Blake a écrit : > Yes, using active block-commit is the ideal way to perform a live backup. Great. > Yep, that about covers it. Note that the --quiesce step in snapshot > creation requires qemu-guest-agent running in the guest, and that you > trust interaction with your guest. Yes, I think

On 06/21/2018 11:27 AM, Jérôme wrote: > Hi all. > > I'm having issues while creating snapshots. > > I posted on Stack Exchange [1], but figured I might get more success here. > > My VM backup script fails while creating the snapshot. > >     virsh snapshot-create-as --domain machine_1 snap --diskspec > vda,file=/srv/test/test-snap.qcow2 --disk-only --atomic

Hello All, I am working on a large storage array running Solaris 11 Express with the comstar iSCSI target service. I have several xcp 1.0 servers running in a pool using this storage as iscsi, not lvmoiscsi. Which in I am using the VDI-per-LUN model. This also means that I am unable to utilize the xen snapshots. What I would like to do is to use the zfs snapshots so that I can replicate them

----- Original Message ----- > From: "Eric Blake" <eblake@redhat.com> To: "Andrew Martin" > <amartin@xes-inc.com>, libvirt-users@redhat.com Sent: Thursday, May 22, 2014 > 5:44:54 PM Subject: Re: [libvirt-users] Live snapshots of a single block > device > > On 05/22/2014 04:31 PM, Andrew Martin wrote: > > Hello, > > > > [Can you

We now stop queues and drain all the pending requests from all virtqueues. So this is not a TODO anymore. Got rid of incrementing fc->dev_count as well. It did not seem meaningful for virtio_fs. Signed-off-by: Vivek Goyal <vgoyal at redhat.com> --- fs/fuse/virtio_fs.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c index

Author: jesusm Repository: /hg/zfs-crypto/gate Revision: 0c4dd65cca5bd3b8022d696234d9797a4a5b2110 Log message: 6244519 dead code to suspend kernel threads on OS quiesce should be removed Files: update: usr/src/uts/sun4u/ngdr/io/dr_quiesce.c

Hi, How I can I quiesce / freeze all writes to zfs and zpool if want to take hardware level snapshots or array snapshot of all devices under a pool ? are there any commands or ioctls or apis available ? Thanks & Regards, sridhar. -- This message posted from opensolaris.org

On 09/11/2015 10:18 AM, Jérôme wrote: >> Yep, that about covers it. Note that the --quiesce step in snapshot >> creation requires qemu-guest-agent running in the guest, and that you >> trust interaction with your guest. > > Yes, I think I get this. I don't really figure out what these cases > could be. We're using Debian Jessie and I installed

On 05/23/2014 08:41 AM, Andrew Martin wrote: >> >> Any reason you aren't upgrading to newer versions? Although these seem >> sufficient for what you are trying. > The VM hosts I'm using all run Ubuntu 12.04 and I haven't had time to backport > and test newer versions yet. I've published the latest versions I built in this > PPA:

On Fri, Oct 10, 2014 at 07:32:06PM -0600, Eric Blake wrote: > On 10/10/2014 11:37 AM, Jd wrote: > > Hi > > Looking in to implementing (CBT like) delta backup for KVM. > > Not quite sure what you mean by CBT. > > > > > The following looks promising..(last paragraph) > > http://wiki.qemu.org/Features/Snapshots2 > > > > Libvirt

On 10/29/2014 01:07 PM, Thomas Stein wrote: > About the --quiesce option. Do i need to do something inside the vm? The most > commonly would probably be a sql server running inside the vm. Do i need to > tell the sql server something about the --quiesce option i use? I read this > article here which suggests such a procedure. Okay, it's vmware, but... Is > that right? For

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

Hi everybody, I'm trying to implement in the non profit organization where I work a backup strategy for our VMs. At the moment I weekly backup the machine (on sunday nights) by stopping the vm, making a snapshot, exporting the xml descriptor file and syncing these files to a remote backup server. I would really like to make daily snapshot without shutting down the vms. at the moment the vms

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

Hi * Trying to get drive-backup command, getting permission denied. :( sudo virsh qemu-monitor-command --hmp my-instance --cmd drive_backup drive-virtio-disk0 /tmp/foo.vda.img Looks like apparmor issue. What can I modify to make this work ? * Couple of other questions drive-backup : * The doc seems to claim that it gives a point in time copy of

----- Original Message ----- > From: "Eric Blake" <eblake@redhat.com> > To: "Andrew Martin" <amartin@xes-inc.com>, libvirt-users@redhat.com > Sent: Thursday, July 21, 2016 5:40:07 PM > Subject: Re: [libvirt-users] Blockpull behavior when interrupted > > On 07/21/2016 03:05 PM, Andrew Martin wrote: > > Hello, > > > > I use