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- Now let's run through a demo

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of stopping and terminating
instances in Amazon EC2.

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So again, we're back at
the AWS EC2 dashboard.

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You can see we have two running instances,

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the linux instance and
the Windows instance

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that we launched earlier.

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Now it's important to note
that the route volume,

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I'm gonna show you here
the route device is,

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if we click this, you can
see that the route device

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is an EBS volume, that means
that the operating system

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is booting from a volume that is hosted by

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the elastic block store service,

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so that the elastic block
store is a device that is

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apart from the machine itself.

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So because of that,

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and we'll talk more about
the details of EBS later on,

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because of that, that allows
us to stop the instance,

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rather than just terminate it.

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So if we wanna stop the instance

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and sort of keep it around,
but not actually use the CPU,

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and not be billed for it,

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then we can potentially
stop these machines

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and then come back and
start them again later.

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So in the case of Windows,

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I'm just gonna go ahead and
show you that from here,

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I'm going to highlight just this one,

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I'm going to go to
actions, instance state,

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and you can see I have the
ability to stop that machine.

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Again stopping and terminating
are two different things.

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Terminating means that it's gone for good,

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stop just means that we will stop

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paying the hourly cost of the machine,

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and then we can restart it later.

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So I'm gonna go ahead and click stop.

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And we're gonna talk about this

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particular point more later on,

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but for now, we should
know that if there are

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any data on the ephemeral
storage of that device,

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it's gonna be lost.

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And we'll again cover
ephemeral storage later on.

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So I'm going to stop that machine,

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and you can see it's in a stopping state.

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We're still paying the hourly cost,

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so long as it's in a stopping state,

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but as soon as it becomes stopped,

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then that's when we stop
paying the hourly fee.

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While that one is running,

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I'm gonna go ahead,

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and click our linux instance.

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I'm going to go instance state, terminate.

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Oh, whoops, I had the other one selected.

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Let's make sure that we uncheck that one.

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But you can see now our Windows
instance is in a stop state.

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So it's still there, it
still exists in some way,

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but it's not actually running.

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So from here, I could either
restart it or terminate it.

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I'm going to select our linux instance,

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come down here instance, terminate.

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And yes, you can see here the EBS volume

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will be deleted when the
instance is terminated.

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And in this particular case,
that's what I want to do.

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I'm gonna click terminate.

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You can see it goes through
a shutting down state,

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and then it'll go into a terminated state.

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While that one is doing that,

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I'm going to go back
to our Windows machine,

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and say actions, instance state start,

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and I can restart that machine.

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And now it goes back to a pending state,

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and it'll take it a few minutes

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before it goes back to a running state.

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Sometimes this view might get stuck.

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We can always hit the
refresh button up here.

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And there we go.

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Now we can see that our Windows
machine is running again,

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but our linux machine is now terminated,

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and we don't have the option
to do anything with it.

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It's completely gone at that point.

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So that is, stopping and terminating

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instances in Amazon EC2.