‫So this is a little bit of a weird lecture,
‫but it's about right sizing in AWS
‫and the exam may ask you one question about it.
‫So the idea is that because you have so many
‫instance types to choose in the cloud,
‫choosing the most powerful one is not the best choice,
‫because the cloud is elastic
‫and you can change the instance type whenever you want.
‫So right sizing is a process of matching
‫the instance type and size to your workload performance
‫and capacity requirements at the lowest possible cost.
‫Making sure the size is right.
‫Because why?
‫In the cloud well, you can scale up easily.
‫So always start small to find the right size.
‫It's also the process of continuously looking at
‫all your deployed instances.
‫And for example, looking at their metrics to identify
‫which are the opportunities to eliminate
‫or downsize without compromising on quality,
‫on capacity, performance and so on,
‫which will in turn, results in lower cost.
‫So it's super important to right size
‫in two moments in your cloud journey.
‫Number one, before you do a cloud migration,
‫because it is very common for a company
‫to just migrate to the cloud,
‫puts everything with biggest instance size and forget it.
‫This is not the best way.
‫Please right size before you do cloud migration.
‫And then once you've done the climate migration,
‫you need to do it continuously.
‫Maybe once a month,
‫because requirements change over time
‫and it's important to see if you need to
‫right size up or right-size down.
‫Okay?
‫So there's some tools that can help you right size.
‫For example,
‫CloudWatch, Cost Explorer, Trusted Advisor,
‫and other third-party tools that can help.
‫Okay?
‫So right sizing is very important.
‫The thing is you need to always scale up over time,
‫so start small.
‫And number two, you right size just before a cloud migration
‫and also continuously in the cloud.
‫That's it.
‫That's all you need to know for the exam.
‫I hope you liked it.
‫And I will see you in the next lecture.