Hi Mikhail, Vish, Kei, I filed the blueprint below.
https://blueprints.launchpad.net/nova/+spec/kvm-block-migration and, please check the full specification page too. http://etherpad.openstack.org/kvm-block-migration BTW, who is the appropriate person as the approver? Also, I'm wondering which milestone target we should shoot for.. diablo-1 or diablo-2? Regards, Masanori From: Vishvananda Ishaya <vishvana...@gmail.com> Subject: Re: [Openstack] KVM Block Migration Date: Wed, 11 May 2011 03:57:47 +0900 > I don't know if anyone has started work on this feature. Someone should file > a blueprint. > > Vish > > On May 10, 2011, at 3:35 AM, Mikhail Shcherbakov wrote: > > Hi, > Is there any progress on KVM block migration? > > I'd like to test it and possibly make some changes to nova to support block > devices, > but don't want to reinventing the wheel. > > Thanks, > > 2011/4/12 Masanori ITOH <itou...@nttdata.co.jp<mailto:itou...@nttdata.co.jp>> > > Hi, > > Vish also mentioned that we should support the KVM block migration feature > instead of stability which I mentioned because it's very much useful. > I agree with Vish of course. :) > Actually, we discussed inclusion of block migration feature at San Antonio. :) > > > I've also seen the page Hisaki mentioned. My point is that > the page explains interacting qemu monitor but we need to invoke > the feature through libvirt layer not the qemu monitor directly. > Here, A colleague of mine mentioned that --copy-storage-all option of > virsh looked like not-supported yet in Ubuntu 10.10 at least. > > Hisaki, > do you have any information if it's enabled in Ubuntu 11.04 libvirt? > I mean using virsh, did you succeed invoking block live migration > something like the following? > > $ virsh migrate --live --copy-storage-all DOMID DESTURL > > Unfortunately, we haven't been able to make enough time trying Natty alpha > because of our schedule delay caused by the earthquake in Northeastern Japan. > :( > At least, libvirt(virsh) included in RHEL6 does not support the feature. > > But, anyway I will talk about the issue with Kei and Muneyuki before going to > the Design Summit. :) > > Regards, > Masanori > > > From: igoigo246 <igoigo...@gmail.com<mailto:igoigo...@gmail.com>> > Subject: Re: [Openstack] KVM Block Migration > Date: Tue, 12 Apr 2011 09:28:38 +0900 > > > Hi, > > > > I look Japanease Site. > > http://www.cuspy.org/blog/archives/917 > > > > This site wrote. > > > > image file > > vda.qcow > > > > sending host > > > > qemu --enable-kvm -m 512 \ > > -drive file=vda.qcow,if=virtio,boot=on \ > > -net nic,macaddr=00:16:3E:00:FF:32,model=virtio > > > > receive host > > > > touch vda.qcow > > qemu -enable-kvm -m 512 \ > > -drive file=vda.qcow,if=virtio \ > > -net nic,macaddr=00:16:3E:00:FF:32,model=virtio \ > > -incoming tcp:0:4444 > > > > sending host > > > > migrate -d -b tcp:wasabi:4444 > > > > > > (qemu) info migrate > > Migration status: active > > transferred ram: 48 kbytes > > remaining ram: 147792 kbytes > > total ram: 147840 kbytes > > transferred disk: 206848 kbytes > > remaining disk: 10278912 kbytes > > total disk: 10485760 kbytes > > > > Thanks, > > > > -- > > Hisashi Ikari > > > > > > > > > > > > 2011-04-11 (月) の 16:50 +0900 に Masanori ITOH さんは書きました: > > > Hi, > > > > > > We are considering if it's possible to support KVM block migration > > > as the next step of live migration. > > > > > > Actually, our main issue at this moment is if that kvm feature is enough > > > stable or not because we got several errors during our try of it > > > using Ubuntu 10.10 code base. Especially, I'm not sure if the feature > > > is enabled or not in the qemu-kvm bundled in Ubuntu/RHEL. > > > > > > Do you have any information about stability? > > > > > > Thanks, > > > Masanori > > > > > > --- > > > Masanori ITOH R&D Headquarters, NTT DATA CORPORATION > > > e-mail: itou...@nttdata.co.jp<mailto:itou...@nttdata.co.jp> > > > > > > From: igoigo246 <igoigo...@gmail.com<mailto:igoigo...@gmail.com>> > > > Subject: [Openstack] (no subject) > > > Date: Mon, 11 Apr 2011 14:41:20 +0900 > > > > > > > hi all > > > > > > > > KVM Block Migration is wonderful function. > > > > > > > > http://www.linux-kvm.com/content/qemu-kvm-012-adds-block-migration-feature > > > > > > > > this allow that live migration do without shared storage. > > > > > > > > > > > > When KVM Block migration Support ? > > > > > > > > > > > > Thanks for reading. > > > > -- > > > > Hisashi Ikari > > > > > > > > > > > > _______________________________________________ > > > > Mailing list: https://launchpad.net/~openstack > > > > Post to : > > > > openstack@lists.launchpad.net<mailto:openstack@lists.launchpad.net> > > > > Unsubscribe : https://launchpad.net/~openstack > > > > More help : https://help.launchpad.net/ListHelp > > > > > > _______________________________________________ > > > Mailing list: https://launchpad.net/~openstack > > > Post to : > > > openstack@lists.launchpad.net<mailto:openstack@lists.launchpad.net> > > > Unsubscribe : https://launchpad.net/~openstack > > > More help : https://help.launchpad.net/ListHelp > > > > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : > openstack@lists.launchpad.net<mailto:openstack@lists.launchpad.net> > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > > > > -- > Mike Scherbakov > www.mirantis.com<http://www.mirantis.com/> > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : > openstack@lists.launchpad.net<mailto:openstack@lists.launchpad.net> > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
