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Thursday, May 15 • 2:20pm - 3:00pm
Multi-Volume Snapshots

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Nova currently provides several mechanisms to create a snapshot of a running instance. However, an instance may be using multiple volumes. As none of the current snapshot mechanisms provides a way to obtain a consistent set of snapshots for all of the attached volumes, we need to add a way to perform a quiesce-only operation in libvirt. Once such a capability is introduced in libvirt, Nova will be able to utilize it during the snapshot process to create a transactional snapshot of all volumes. The various snapshot calls are expected to be aggregates to a single shared implementation.

On the Glance side, the set of snapshots could be treated as a single entity using the new Artifact design.

(Session proposed by jbernard@tuxion.com)

Thursday May 15, 2014 2:20pm - 3:00pm EDT

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