We would like to optimize our MongoDB Atlas usage in order to save money. With the recent changes made by MongoDB Atlas to the Cluster Backup Storage offer, we are currently studying the different backup strategies and policies.
We would like to delete snapshots that were taken in March or prior that we will never use to recover the Cluster anyway and see the effects it has on our costs.
The problem is that everywhere in the documentation for the Cloud Continuous Backup, it is written that the snapshots are taken incrementally. Maybe we misunderstood the “incrementally”, but our understanding is that if there are 3 snapshots taken (A, B and C in this order), than B represents the changes that have been made on top of A and C represents the changes that have been made on top of B. But in this case, does this mean deleting snapshot B will corrupt or make snapshot C useless?
- Did we misunderstand the meaning of “incremental”?
- If not, does deleting our old snapshots make the new ones incomplete?
Thank you for your help!