Snapshots

DB Snapshots are user-initiated and enable you to back up your DB instance in a known state as frequently as you wish, and then restore to that specific state.

Cannot be used for point-in-time recovery.

Snapshots are stored on S3.

Snapshots remain on S3 until manually deleted.

Backups are taken within a defined window.

I/O is briefly suspended while backups initialize and may increase latency (applicable to single-AZ RDS).

DB snapshots that are performed manually will be stored even after the RDS instance is deleted.

Restored DBs will always be a new RDS instance with a new DNS endpoint.

Can restore up to the last 5 minutes.

Only default DB parameters and security groups are restored – you must manually associate all other DB parameters and SGs.

It is recommended to take a final snapshot before deleting an RDS instance.

Snapshots can be shared with other AWS accounts.

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