It may be a rather stupid question, but the reason is ask this, is that i created a Live snapshot of a test Linux KVM of about 2.7GB in size. When the live snapshot creation was done, it was about 350 MB in size. Then, i deleted around 700MB of data, and did a "Rollback" to the state before the snapshot. To my surprise, all that data magically re-appeared.
The question really is, how is it a snapshot of 350MB can re-create 700MB of randomly deleted data (a few thousand files)? I assume (but not tested) that it will not re-create all 2.7GB if i were to wipe the VM's complete drive?
The question really is, how is it a snapshot of 350MB can re-create 700MB of randomly deleted data (a few thousand files)? I assume (but not tested) that it will not re-create all 2.7GB if i were to wipe the VM's complete drive?
