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‫As usual, shared responsibility is important

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‫going into the certified cloud practitioner exam.

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‫And so we need to understand where is the responsibility

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‫for AWS and yours regarding EC2 storage.

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‫So AWS, of course, is responsible for their infrastructure,

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‫but also because in the technical specification of EBS, EFS,

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‫the tell you the data is replicated across many hardware,

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‫it is AWS responsibility to perform that replication.

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‫So that if one day some hardware is not working,

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‫you as a customer is not impacted.

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‫Also, anytime an EBS drive would fail,

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‫or one part of it would fail.

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‫It is obviously AWS responsibility

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‫to replace that faulty hardware.

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‫And finally, because we're talking about data storage,

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‫it is their responsibility to ensuring that their employees

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‫cannot access your data.

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‫Now what is your responsibility as a customer?

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‫Well, setting up any backup or snapshot procedures

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‫and guidelines is very important to ensure

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‫that you don't lose your data.

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‫Setting up data encryption is another layer of protection

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‫to ensure that people cannot have access to your data,

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‫would it be AWS or other customers of AWS,

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‫even though obviously,

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‫security would be in place for it not to happen,

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‫but it would be an interesting second layer of security.

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‫Any data you set,

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‫obviously, on the drive is your responsibility.

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‫Anything you write to that disk is your own responsibility.

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‫And if you're using an EC2 instance store,

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‫you need to understand the risks

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‫that are associated with it,

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‫which is that you can lose the drive if somehow

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‫there's a faulty hardware,

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‫or that if you stop or terminate the EC2 instance

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‫that has an instant store,

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‫then the data will be lost.

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‫So again, it would be responsibility

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‫to back it up in the first place.

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‫Okay, that's it, I hope that was helpful

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‫and I will see you in the next lecture.