Snapshots for Image Rollback
One common use of a guest image snapshot is to roll back an image to a previous state. This is frequently done with guest images used for demonstration purposes, or test labs where a scenario is tested to see the results and compared with identical tests of other scenarios, or for the purpose of preparing for a software upgrade or migration.
In the case of a guest image used for demonstration purposes, a user might run through a demo of a software program where they add information, delete information, make software changes, or otherwise modify information in the software on the guest image. Rather than having to go back and delete the changes, or rebuilding the image from scratch to do the demo again, with a snapshot, ...
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