Making sure your S3 backup worked

4 Jan 2017 18:21 | AWS

As a follow-up to my previous post about making immutable S3 backups using
Lambda, this is an additional Lambda function you can use to verify that your
backup actually ran.

You'll want to configure it to run at around 10-15mins past the hour so the
backup has some time to complete.  It will look for the backup files that should
exist and send an email if they don't.