On Tue, Aug 20, 2019 at 10:04 PM Zaharo Bai (白战豪)-云数据中心集团 <[email protected]> wrote: > > Hi jason: > > I have a question I would like to ask you, Is the current image > migration and openstack adapted? according to my understanding, openstack’s > previous live-migration logic is implemented in cinder, just call librbd > rbd_read/write API to do Data migration.
I believe the existing Cinder volume block live-migration is just a wrapper around QEMU's block live-migration functionality, so indeed it would just be a series of RBD read/write API calls between two volumes. The built-in RBD live-migration is similar but it copies snapshots and preserves image sparseness during the migration process. Because Cinder is using the QEMU block live-migration functionality, it's not tied into RBD's live-migration. > > > > Best wishes > > Zaharo -- Jason _______________________________________________ ceph-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
