OpenStack Cinder with Ceph under the hood [feedly]

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OpenStack Cinder with Ceph under the hood
// Ceph

What's happening under the hood while playing with Cinder and Ceph? Answer table :-).

	ACTION	RESULTS
	Create a volume	New RBD image gets created in the pool configured in your cinder.conf.
	Create a volume backup	Create a new volume in the destination pool, the first backup is a full copy, the new ones will be incremental.
	Create a volume from a snapshot (with rbd_flatten_volume_from_snapshot=false)	Creates a new volume. Will be a clone in Ceph and the parent will be the snapshot.
	Create a snapshot from a volume (with rbd_flatten_volume_from_snapshot=true)	Creates a new volume. Will be a new RBD image in Ceph.
	Create a volume from a volume	The source volume gets snapshotted and the volume will be clone of this snapshot.
	Create volume from image	If the image is in a Ceph pool and its location exposed then the volume will be a clone.
	Create a snapshot	Creates an RBD snapshot.

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	Todd Pigram Data Center Engineer   1801 Superior Ave. Ste. 300 | Cleveland, OH  44114 (800) 777-7178 | toll free (440) 268-3297 | office (216) 224-5769 | mobile
Architects of the anyplace workspace™