Hi, thanks all for replying, sorry I might be a bit unclear. We have user demands that we only change the root device of an volume-backed instance for upper layer services. It's not cloudy but it is quite common. And changing OS is another demand that sort of related to this.
Cinder supports live-backup volume, but not support live-restore a volume. Are we planning to support this kind of action? Yours, Zheng On Mon, Nov 9, 2015 at 8:24 PM, Duncan Thomas <duncan.tho...@gmail.com> wrote: > On 9 November 2015 at 09:04, Zhenyu Zheng <zhengzhenyul...@gmail.com> > wrote: > >> And Nova side also doesn't support detaching root device, that means we >> cannot performing volume backup/restore from cinder side, because those >> actions needs the volume in "available" status. >> >> > > It might be of interest to note that volume snapshots have always worked > on attached volumes, and as of liberty, the backup operation now supports a > --force=True option that does a backup of a live volume (via an internal > snapshot, so it should be crash consistent) > > > -- > -- > Duncan Thomas > > __________________________________________________________________________ > OpenStack Development Mailing List (not for usage questions) > Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > >
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