Amazon ec2 notes

 multitenancy = sharing underlying hardware between VM

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hypervisor = isolating vm from  each other as they share resources from host.

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provision thousand of ec2 instances. on demand. with a blend of operating system and configuration

to power ur business different app

bs milih os + service yg jalan pas diinstall

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// vertical scalling

bs bikin instance bigger or smaller

// horizontal scalling

menambah jumlah instance

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// network 

public

or

private

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ec2 ada groupnya. namanya instance family

combination of resource.

1 general purpose

- balanced resources

- diverse workload

- web server

- code repository

2 compute optimized

- compute intensive task 

- gaming server

- high performance computing / hpc

- scientific modeling

3 memory optimized

- compute intensive task 

- ++ database performance

This scenario might be a high-performance database or a workload that involves performing real-time processing of a large amount of unstructured data. In these types of use cases, consider using a memory optimized instance. Memory optimized instances enable you to run workloads with high memory needs and receive great performance.

4 accelerated computing

- floating number calculation

- graphic processing

- data pattern matching

- utilize hardware accelerator

5 storage optimized

- high performance io for locally stored data

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