Folks,
I have two openstack clouds and both have their own Ceph backend storage.I am trying to migrate instances from openstack A to openstack B.
1. Take a snapshot from A 2. Export snapshot and import to B 3. Create instance on B 4. Delete snapshot - (I am getting error because its in-use)
Because it has a parent reference to that volume. How do I remove the reference so it will let me delete a snapshot. Reason I am asking is because I have so many VMs to migrate and don't want glance to have 100s of entities in those snapshots.
What is the alternative here? I can try qcow2 if that is the final solution to make it clean.
# rbd -p volumes info volume-f2b2aec2-cc57-49e5-aca1-54b5a7ee9f3a rbd image 'volume-f2b2aec2-cc57-49e5-aca1-54b5a7ee9f3a': size 40 GiB in 5120 objects order 23 (8 MiB objects) snapshot_count: 0 id: 5473c827864fed block_name_prefix: rbd_data.5473c827864fed format: 2 features: layering, exclusive-lock, object-map, fast-diff, deep-flatten op_features: flags: create_timestamp: Fri Jan 19 19:03:25 2024 access_timestamp: Wed Jan 24 15:51:04 2024 modify_timestamp: Wed Jan 24 15:52:40 2024 parent: images/3708f961-fb74-49f1-ab9b-40cf7954abed@snap overlap: 40 GiB