Features/Virt Live Snapshots

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Contents

Virt Live Snapshots

Summary

Live snapshots allow a user to take a snapshot of a virtual machine while the guest is running, thus preserving the state and data of a VM at a specific point in time.

Owner

  • Name: Cole Robinson
  • Email: crobinso@redhat.com
  • Name: Jeff Cody
  • Email: jtc@redhat.com

Current status

  • Targeted release: Fedora 18
  • Last updated: June 6 2012
  • Percentage of completion: 60%

Detailed Description

XXX: Point out that while qemu has had 'snapshot' capabilities for a long time, it was not 'live' and required pausing guest operation for the duration of the snapshot process. This is more a true snapshot.

Benefit to Fedora

Scope

  • Live snapshot support in qemu (DONE, still need to package 1.1 for fedora)
  • Live snapshot support in qemu-ga (DONE)
  • Live snapshot support in libvirt (DONE)
  • Apps
    • Snapshot support in ovirt? (unknown)
    • Snapshot support in virt-manager? (not done)
    • Snapshot support in boxes? (probably out of scope)

How To Test

TBD

User Experience

Virtualization users will have a more production ready mechanism for snapshotting than QEMU previously supported (no loss of uptime). Exposing snapshotting in tools like ovirt and/or virt-manager will essentially be a new and compelling feature for those users.

Dependencies

None

Contingency Plan

Since this is brand new functionality, if it doesn't make it in time for F18, nothing has changed. We just drop this feature page.

Documentation

Release Notes

Comments and Discussion