Reviewing EC2 Instance Types
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Video Transcription
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>> Hey everybody, and welcome back.
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In this lesson, we're going to
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review the different instance types.
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I know in the last lecture we did talk a little bit about
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it when we are creating our EC2 instance.
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But I want to actually show you
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a tool that'll be helpful in
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understanding the various instances
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out there and their use cases.
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The learning objective for this lesson
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is going to be to describe
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the EC2 instance type families
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and discuss their common use cases.
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EC2 instance types.
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This is the type of instance is like
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a prepackaged machine that already
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has some pre-configured CPU and RAM configurations to it.
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You're buying it from the packet,
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just like going to the grocery store
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and you're buying tomatoes or you're
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buying apples, some type of fruit.
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You can buy the fruit or the vegetable individually.
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Or you can buy convenient package
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which is already pre-packaged for you.
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Maybe it's a little bit more expensive,
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might even be a little bit cheaper.
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Depends on the store and the situation,
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but it's designed for convenience.
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Maybe it has two or three in there,
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and all you have to do is grab
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one package instead of grabbing the individual fruits
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and inspecting them and making sure they're not
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rotten or anything like that, it's like that.
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This is a prepackaged instance, ready to go.
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All you got to do is select your type.
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Here are the different types that they have.
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They have general purpose,
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they have compute optimized, memory optimized,
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accelerated computing, storage optimized,
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instance features, and measuring instance performance.
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Now I'm going to take you to a site
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that I found pretty helpful when trying to
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discover the various use cases and
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the pre-packaged compute resources
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that you get with these instance types.
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I want to drop a link down in the resource page for you,
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so feel free to use this and discover it yourself,
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play around with it.
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But let's go ahead and switch
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screens so you can see what I'm talking about.
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Here we are, we're in instances.vantage.sh.
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What this is is just this free
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web application that allows you
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to look at
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the various instance types and their locations.
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You can see how much they cost
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based on on-demand or Linux or spot.
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It gives you lots of
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high level information at a quick glance.
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Now, if you're solution architect,
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this is super helpful because it saves you a lot of time.
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All you have to do is search for the type of instance.
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Like let's say we wanted that T2 micro,
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well, it doesn't show it there actually.
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What about T. Going to go for T,
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T2 large, T3, T2.
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There we go, T2.
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For T2 micro, you have your API name, here's your name.
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Here we can see all the information about it.
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We can see how much it costs.
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We're talking super cheap.
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Not even a penny for the reserve cost,
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for on-demand cost same thing.
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It's a penny, super cheap per hour.
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A penny per hour
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if you're using it outside of the free tier,
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and this is how much it costs for
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your on-demand if you're using
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Windows or if you're using reserve for Windows,
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here's your spot for Linux.
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Lots of really helpful information and it tells
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you the memory that's associated with it.
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It tells you how many virtual CPUs you got,
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what storage options you have,
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what network performance you have, really good stuff.
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What's also cool is not just for EC2.
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You can also search for RDS,
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which is relational database.
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We haven't gotten to this point in the course yet,
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but RDS is what we use to work on databases in AWS Cloud.
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It's very similar to EC2 and a sense
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of the way that things are set up is very similar.
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These are virtual machines that
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are designed to run databases,
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so they're naturally going to be compute
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resource intensive or resource
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ready for that type of demand,
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for databasing or for data management and all that.
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Again, you can also get a high-level view
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of what these things are costing
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right now, gives you an idea.
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With databases, you have different options.
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You have Aurora, they have the Postgres SQL, the MySQL.
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You can do something outside of Aurora,
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which Aurora is Amazon's flavor.
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We're going to talk more about this later,
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so don't worry about it right now.
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But Aurora is like a managed services
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offered by AWS and it's a little bit expensive.
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They have MariaDB, MySQL,
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Oracle, gives you some prices on that.
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It looks like there's some that's unavailable.
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Not sure why that is.
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Maybe if I scroll down,
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it changes, okay yes, it does.
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Maybe it's just unavailable because
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of the type of instance.
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I'm also discovering this myself.
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I've never used this for the RDS stuff.
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But yeah, it gives you
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the high level view of what's available to
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you and I highly recommend you take a look at it
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and make sure you save this page.
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You might find this super helpful as you're
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going on with your career as a Cloud engineer.
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Be sure to take a look at this.
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That wraps up this. I'm going to go ahead and pause and
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jump back over to the slides, so I'll see you in a sec.
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Everyone, this is going to wrap up this lesson here.
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In this lesson we
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talked about the various instance types,
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we've talked about what are they really?
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Why do we have instance types?
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There's so many things that we were memorizing here?
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Instance types, like I said,
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it's a quick and easy way for you to
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pre-package what you've got,
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what resources you've got that you can
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purchase in the Cloud for your EC2 instances.
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Super convenient, super-helpful.
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For your Solution Architect associate exam,
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there are going to be
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some questions where they're going to ask you,
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is this a valid EC2 instance type?
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It's going to be super high level.
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There's a mnemonic out there on the Internet
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that is associated with some other training platforms.
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But I highly recommend you take a look at,
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all you have to do is type in EC2 instance type mnemonic.
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Be sure to check that out because
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you're going to find that that
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mnemonic will help you memorize the different families.
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That's the only thing you got to know.
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The families like the T family, the F family,
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the J family like those things.
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You want to make sure that you understand
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going in there,
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and I believe with your exam,
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you're able to write down some things
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when you sit down for your test,
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right before they give you a whiteboard and all that.
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This is one of those things you want to write
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down is the mnemonic.
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Just write down the first letter of each family,
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for instance types because you might
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receive one or two questions where it's going to ask you,
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hey, was this in that list?
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You got to be able to determine which one of
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the multiple choice options wasn't in that list,
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so quick little tip for you there.
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We also learned in this lesson
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where you can learn more about these instances,
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so I gave you a resource.
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Also, I'm going to attach a link in the resources page
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or in the description where you can go and
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find more information on AWS documentation,
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on instance types, and read
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all about their good stuff over there.
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That wraps up this lesson,
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hope you found this helpful.
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I'll see you in the next lesson.
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