This actually was fixed in upstream ( https://github.com/openstack/nova/commit/70129ed19db187cc90f74abd5c93c86098d29c27 ). Which OpenStack version you use? Maybe this patch can be backported there. There is workaround for this problem, but it's (not a bit) ugly: http://www.mail-archive.com/openstack@lists.launchpad.net/msg13730.html 2012/8/13 Wolfgang Hennerbichler <wolfgang.hennerbichler at risc-software.at>: > hello fellow openstack users, > > I just tried to create a snapshot of a virtual machine, which was larger > than average. Bad news: The snapshot couldn't be saved, but what I see here > is some kind of design problem: > > 2012-08-13 13:44:41 DEBUG nova.utils > [req-a678e738-9c18-4ee6-8e2e-f1f176a4674b 9b4ad74ecb69492db1bd3818efe6a47f > 7edc3284f53f4e02b92d498db41b842d] Running cmd (subprocess): qemu-img convert > -f qcow2 -O raw -s 34dd12038e7b400b9f1d772de4e01 > 70a /var/lib/nova/instances/instance-0000005c/disk > /tmp/tmp1gRMY9/34dd12038e7b400b9f1d772de4e0170a from (pid=25365) execute > /usr/lib/python2.7/dist-packages/nova/utils.py:219 > > that's bad, I don't have so much disk space on /, but I have plenty in > /var/lib/nova/instances. > > df -h | grep nova > /dev/dm-8 1.4T 150G 1.3T 11% /var/lib/nova/instances > > is there a generic way to change this path? > > Wolfgang > > -- > DI (FH) Wolfgang Hennerbichler > Software Development > Unit Advanced Computing Technologies > RISC Software GmbH > A company of the Johannes Kepler University Linz > > IT-Center > Softwarepark 35 > 4232 Hagenberg > Austria > > Phone: +43 7236 3343 245 > Fax: +43 7236 3343 250 > wolfgang.hennerbichler at risc-software.at > http://www.risc-software.at > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : openstack at lists.launchpad.net > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp