Back to the future - incremental backup in oVirt

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" summary

Describes oVirt’s new incremental backup capability that uses QEMU changed-block tracking and the Libvirt backup API to download only changed blocks for VM backups. Covers the oVirt incremental backup API for starting/ending backups and the ovirt-imageio API for downloading changed blocks, plus restoring raw guest data (with on-the-fly raw→qcow2 conversion) into new disks.

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" chapters (28)

1. 0:00Agenda for our time journey
2. 1:20Backup appliance-backup flow
3. 1:41Image transfer API
4. 2:09Upload disk - restore flow
5. 2:29Incremental backup API
6. 2:55Full backup flow
7. 3:55Restore from incremental backup flow
8. 4:17Incremental backup - advantages
9. 5:26Incremental backup - limitations
10. 6:07Checkpoints
11. 7:20Dirty bitmaps
12. 9:26Starting full backup
13. 10:03Starting transfer for backup
14. 10:37Download backup
15. 10:55Finding disks for incremental backup
16. 11:11Starting incremental backup
17. 11:44OPTIONS - response
18. 13:15Getting dirty extents-request
19. 13:40Getting data
20. 13:58Uploading data extents
21. 14:34Zeroing an extent on storage
22. 15:39Flushing uploaded data
23. 15:54Imageio backup REST API
24. 16:49imagelo client library - pipeline
25. 17:35imageio client library - full backup
26. 17:59imageio client library - incremental backup
27. 18:30imageio client library - restore
28. 18:49Demo time