This session discusses different types of virtual machine snapshots with QCOW2 disk images. A snapshot is a view of a virtual machine (its OS and all its applications) at a given point in time, giving an ability to revert to a known sane state in case of a failure. The session also includes a brief demonstration of the different types of snapshots under discussion (Internal snapshots, External snapshots, System Checkpoint, Online/Offline snapshots) and their use-cases.
Audience would include Linux system administrators familiar with KVM virtualization. The take-away would be an overall understanding of different snapshotting capabilities using QCOW2 disk images, and some practical examples which could be applied while managing virtual machines and snapshots. Finally, a glimpse of upcoming developments in this area.
