‫As usual, shared responsibility is important
‫going into the certified cloud practitioner exam.
‫And so we need to understand where is the responsibility
‫for AWS and yours regarding EC2 storage.
‫So AWS, of course, is responsible for their infrastructure,
‫but also because in the technical specification of EBS, EFS,
‫the tell you the data is replicated across many hardware,
‫it is AWS responsibility to perform that replication.
‫So that if one day some hardware is not working,
‫you as a customer is not impacted.
‫Also, anytime an EBS drive would fail,
‫or one part of it would fail.
‫It is obviously AWS responsibility
‫to replace that faulty hardware.
‫And finally, because we're talking about data storage,
‫it is their responsibility to ensuring that their employees
‫cannot access your data.
‫Now what is your responsibility as a customer?
‫Well, setting up any backup or snapshot procedures
‫and guidelines is very important to ensure
‫that you don't lose your data.
‫Setting up data encryption is another layer of protection
‫to ensure that people cannot have access to your data,
‫would it be AWS or other customers of AWS,
‫even though obviously,
‫security would be in place for it not to happen,
‫but it would be an interesting second layer of security.
‫Any data you set,
‫obviously, on the drive is your responsibility.
‫Anything you write to that disk is your own responsibility.
‫And if you're using an EC2 instance store,
‫you need to understand the risks
‫that are associated with it,
‫which is that you can lose the drive if somehow
‫there's a faulty hardware,
‫or that if you stop or terminate the EC2 instance
‫that has an instant store,
‫then the data will be lost.
‫So again, it would be responsibility
‫to back it up in the first place.
‫Okay, that's it, I hope that was helpful
‫and I will see you in the next lecture.