Hello Ignazio, do you mean the instance has booted from volume ? when is booted from volume this 0 bytes glance image is created together with a cinder snapshot. I wrote about it for my openstack users here: https://help.switch.ch/engines/documentation/backup-with-snapshots/ I think that is by design. Also my opinion is that the current design with booting from volumes or images and different snapshotting paths is very confusing for the users. That is why I had to write that page. 2017-06-23 10:29 GMT+02:00 Ignazio Cassano <ignaziocassano at gmail.com>: > I created the instance from an image and the instance has an attached volume > (it is NOT ephemeral). > I checked that in this case it makes a volume snapshot (probably because the > istance is attached to a volume) but also an empty image (why ?) > In the case the instance is ethemeral (no volumes attached) , a not empty > image is created. > Regards > Ignazio > > 2017-06-23 10:10 GMT+02:00 Ahmed Mostafa <ahmedmostafadev at gmail.com>: >> >> What do you mean by the instance has an attached volume ? >> >> Have you started the instance from a volume ? >> >> On Fri, Jun 23, 2017 at 8:06 AM, Ignazio Cassano >> <ignaziocassano at gmail.com> wrote: >>> >>> Hi All, >>> using ocata dashboard I am trying to create instance snapshots. >>> If the instance has an attached volume, the image created is empty. >>> If the instance does not have an attached volume, the image created is >>> not empty. >>> This is by design or I must change my configuration ? >>> >>> Regards >>> Ignazio >>> >>> _______________________________________________ >>> OpenStack-operators mailing list >>> OpenStack-operators at lists.openstack.org >>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators >>> >> > > > _______________________________________________ > OpenStack-operators mailing list > OpenStack-operators at lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators >