I think in "Amazon EBS Snapshots" clip (6:23) , concept is wrongly explained or i might misunderstood. according to author , if snapshot 1 is deleted , we wouldn’t loose the ability to restore data. i think initial full snapshot is important to restore incremental snapshot data? can author or anyone please clarify this concept?
Thanks,
aman
2 Answers
Hi Aman,
The concept of EBS snapshots is correctly explained in the video. If snapshot 1 is deleted, AWS takes care of "re-linking" that data to the next most recent snapshot so you can always do a full restore.
Don’t think about snapshots as tape backups…where if you delete the first tape, you cannot restore. They are more of a logical concept.
Don’t believe me? Try it… create an instance, do some snapshots, delete some snapshots and see what happens!
–Scott
thanks Scott