I believe that Your mail went to the wrong recipient. As far as I'm concerned it should have been sent to the libvirt-users mailing list, shouldn't it? On 2018-03-22 15:55, James Iter wrote: > Thank your reply. > I found the method. > Now, I sharing to you. > When create snapshot, just add ’no’ value to the ’snapshot’ option with —diskspec. > As below: > > ``` bash > snapshot-create-as 8x0lbzvS --name sys_disk --disk-only --quiesce --atomic --diskspec "vda,snapshot=external" --diskspec "vdb,snapshot=no" > ``` > > > -- > James Iter > > > 在 2018年3月21日 星期三，下午6:24，Dominik Psenner 写道： > > > (shameless plug) > > > > To do automated daily backups of a few machines I wrote a small toolset to get the job done and make it as less a hassle as you can get. The source is on github https://github.com/dpsenner/libvirt-administration-tools/. Use it if you find it useful. > > > > Note that I have yet not tested it with multiple disks but the tool uses the output of `virsh dombklst`. In theory that should snapshot all disks of a guest machine. > > > > Cheers > > On Tue, 20 Mar 2018, 19:54 James Iter, <james.iter.cn(a)gmail.com (mailto:james.iter.cn@gmail.com)> wrote: > > > > > > Hi, dear friends. > > > My guest has two disks, vda and vdb. both are qcow2 local file. > > > When guest running state. > > > I want to take the vda snapshot of guest(just vda, no include vdb). but I met libvirt do snapshot for all disks of guest. > > > > > > About methods as follow: > > > 1、 > > > ``` bash > > > virsh > > > snapshot-create-as 8x0lbzvS --name sys_disk3 --disk-only --diskspec "vda,snapshot=external" > > > ``` > > > ``` result > > > > > > [root@10k03 ~]# ls -lh /opt/Images/*sys_disk3 > > > > > > > > > -rw-------. 1 qemu qemu 194K 3月 20 23:27 /opt/Images/00d76a58-9637-4402-9739-21afd1246e06.sys_disk3 > > > > > > > > > -rw-------. 1 qemu qemu 704K 3月 20 23:52 /opt/Images/8d582c1c-355a-4297-9434-2f2f562c77df.sys_disk3 > > > > > > > > > ``` > > > > > > 2、 > > > ``` python > > > > > > #!/usr/bin/env python > > > > > > > > > # -*- coding: utf-8 -*- > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > import libvirt > > > > > > > > > import libvirt_qemu > > > > > > > > > import json > > > > > > > > > import sys > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > name = sys.argv[1] > > > > > > > > > print name > > > > > > > > > conn = libvirt.open() > > > > > > > > > dom = conn.lookupByName(name) > > > > > > > > > > > > > > > > > > > > > xml = """ > > > > > > > > > <domainsnapshot> > > > > > > > > > <name>sysdisk_by_xml</name> > > > > > > > > > <description>By xml</description> > > > > > > > > > <disks> > > > > > > > > > <disk name='vda' snapshot='external'> > > > > > > > > > </disk> > > > > > > > > > </disks> > > > > > > > > > </domainsnapshot> > > > > > > > > > """ > > > > > > > > > > > > > > > > > > > > > flags = 0 > > > > > > > > > flags |= libvirt.VIR_DOMAIN_SNAPSHOT_CREATE_DISK_ONLY > > > > > > > > > flags |= libvirt.VIR_DOMAIN_SNAPSHOT_CREATE_QUIESCE > > > > > > > > > > > > > > > > > > > > > ret = dom.snapshotCreateXML(xmlDesc=xml, flags=flags) > > > > > > > > > ``` > > > ``` result > > > > > > [root@10k03 ~]# ls -lh /opt/Images/*sysdisk_by_xml > > > > > > > > > -rw-------. 1 qemu qemu 194K 3月 20 23:52 /opt/Images/00d76a58-9637-4402-9739-21afd1246e06.sysdisk_by_xml > > > > > > > > > -rw-------. 1 qemu qemu 1.2M 3月 21 00:03 /opt/Images/8d582c1c-355a-4297-9434-2f2f562c77df.sysdisk_by_xml > > > > > > > > > ``` > > > 。 > > > > > > > > > Then, I searched by google. see your page(https://www.redhat.com/archives/libvirt-users/2013-June/msg00102.html). > > > > > > Now, I want to ask you, have you found the method? > > > > > > > > > -- > > > James Iter > > > > > > > > > _______________________________________________ > > > libvirt-users mailing list > > > libvirt-users(a)redhat.com (mailto:libvirt-users@redhat.com) > > > https://www.redhat.com/mailman/listinfo/libvirt-users > > > > > > > > >