S3 Fundamentals Section Introduction Welcome to the first part of the S three section. Now, s three is a huge exempt topic and it is so important to master it. As you can see, there are a lot of technologies within the S three box. So I’ve divided this section in actually two parts. The first part is going to be around the S Three fundamentals and that comes straight from the developer course. You’re free to just watch all the lectures if you need a refresher. That includes buckets…

CloudWatch & EBS So for Cloud Watch and ABS, you need to know a few things. You need to know a few metrics. And it’s going to be volume idle time, and that’s the number of seconds. Then there is no read or write being submitted. That means that your disk is idle and doing nothing. Volume Q length, which is number of operations waiting to be executed. And so if you get a really high number, that means that a lot of operations are being queued. That means that…

EBS Operation: Volume Migration All right, finally, let’s talk about the last operation, which is, how do you encrypt an EVs volume? So, when you created an encrypted EVs volume, right away you get the following. You get data at rest being encrypted inside your volume. All the data inflight between the instance and the volume is encrypted. All the snapshots will be encrypted, and all the volumes created from the snapshots are encrypted. So there’s encryption all around the place. And the old encryption and decryption mechanism is handled…

EBS Volume Burst Okay, so now there is this concept of burst that I’ve mentioned before on GP two volumes. But now we’re going to formalize this. So if your GP two volumes is less than 1000GB, that means that your IAPS is less than 3000 because it’s three I Ops per gigabytes for GP two, then it can burst. And burst, that means it can achieve 3000 IOPS performance even though you had less than 1000GB. So this is similar concept to when we have t two instances with…

Section Intro Now that we know all about automation and deployment it is time for us to get back to EC Two and learn about how to store data on EC Two instances. You know what I mean? I mean EFS and EBS. Now, I know that EFS and EBS you may already know them from a basics exam that you’ve done before. But in this section we’ll see them in depth and we’ll see them from a sysaps perspective. What does that mean? Well, that means looking this is…

Aurora Hands On So let’s create an Aura database and we are in the new interface. So there was an old interface and now you can switch back to the old one, but I’ll keep the new so that the video is more compatible with you. And so we’re going to create an Aura database so we can do a standard create to configure everything, or an easy create, but obviously we want to configure everything. So we’ll go into a standard create. I’ll choose Aura and then you have…

RDS API & Hands On Believe it or not, you need to know a few APIs going into the exam for as a sys ups. The first one, and I think the most important one is going to be the described instances API, which does exactly what you think it does. It describe what’s in your instance. So it will help you get a list of all the DB instances that you have deployed and that includes read replicas. So it’s a very nice way to get the list of…

RDS Multi AZ vs Read Replicas Hands On So I am going to create a Postgres database, and we’ll see the difference between multiaz and read replicas in this lecture. So I’ll create Postgres and then I’ll click on Next and I’ll create a dev test type of instance. And we’ll enable multiaz on our own. If you use production, you can see that you can already have multiaz out of the box and provision IOP storage. But for now, we’ll just do dev tests and do things manually. Click…

Section Intro So we’ve seen how to store data in s three, but what if you want to store data in a database? Well, this is a section in which we’ll look at RDS, ElastiCache and aurora. Now, you should already have heard about these three technologies and I hope know at least about RDS. So this section will be dedicated to going a little bit more beyond what you know to learn about all the systops related questions and triggers. So database section will include good RDS in depth….

CloudFormation DeletionPolicy All right, let’s learn how to retain data on Deletes so we can put something called a Deletion Policy on any resource we want to control what happens when the confirmation templates gets deleted. So we can say Deletion Policy equals retain and we’ll specify on any resource we want. And in that case confirmation will preserve or backup that resource, which is kind of neat. And we can specify to keep a resource, we’ll specify Retain and it works for anything thing, for resources, for nested stacks,…