Can you write me what i need to do to migrate to qcow2 format? I've got running vm's that cannot be "deleted". I tried migrating them form rbd v1 to v2 but this doesn't solved my problem.
2014-04-30 12:41 GMT+02:00 Javier Fontan <[email protected]>: > I'm not sure I follow you with that. Just changing the TM from ceph to > qcow2 is something that probably doesn't work. One of the things that > can be failing is that getting the free space from ceph and qcow2 is > totally different and it may be that the datastore is reporting 0 > bytes free. In this case the scheduler will never start a VM that uses > that datastore. > > On Wed, Apr 23, 2014 at 9:18 AM, Leszek Master <[email protected]> wrote: > > I tried to change rbd image version from 1 to 2 but it doesn't work. But > > when i changed in my ceph datastore TM_MAD to qcow2 the new VM > instantized > > from image that was in the datastore stuck on "PENDING". Is there any > way to > > get this working with "existing" images? > > > > > > 2014-04-21 14:53 GMT+02:00 Stuart Longland <[email protected]>: > > > >> On 17/04/14 01:18, Leszek Master wrote: > >> > 1) I'm using OpenNebula 4.4 with ceph datastore. When i try to make > >> > snapshot i've got error: > >> > 3) Is there any way to use copy-on-write in opennebula 4.4 ? > >> > >> I did some experimental work on this with our OpenNebula 4.4 instance. > >> It relies on modern kernel's ability to map version-2 RBD images using > >> the kernel rbd driver, so it needs kernel >3.10 (? Not sure of exact > >> version; we're using 3.13). > >> > >> This newer format allows copy-on-write cloning. "Hot" snapshots work, > >> however I haven't managed to trigger a deferred snapshot, so that's > >> untested. The driver also makes use of hypervisor-side cache using > >> FlashCache, allocating slices of a nominated LVM volume to boost > >> performance. > >> > >> I've thrown my work into a git repository for now, consider this very > >> much pre-alpha. If you're brave, feel free to give it a go: > >> > >> git clone git://git.longlandclan.yi.org/opennebula-ceph-flashcache.git > >> > >> Regards, > >> -- > >> Stuart Longland > >> Systems Engineer > >> _ ___ > >> \ /|_) | T: +61 7 3535 9619 > >> \/ | \ | 38b Douglas Street F: +61 7 3535 9699 > >> SYSTEMS Milton QLD 4064 http://www.vrt.com.au > >> > >> > > > > > > _______________________________________________ > > Users mailing list > > [email protected] > > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org > > > > > > -- > Javier Fontán Muiños > Developer > OpenNebula - The Open Source Toolkit for Data Center Virtualization > www.OpenNebula.org | @OpenNebula | github.com/jfontan >
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