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AWS - Coggle Diagram

- - - - Subnets
        
        Subnet attached to Availability Zone
        
        Access Types
        
        Public (internet gateway)
        
        Private (Virtual Private Gateway)
        
        Direct connect (direct fiber cable to aws data centers)
- - - - Operational Excellence
        
        flexibility of small changes without disrupting a system, reliability and responsiveness of a system
      - Security
      - Cost optimization
      - Performance
      - Reliability
- - - - Amazon EC2 scaling (Group EC2 instances)
        
        Elastic Load Balancing (Balance incoming traffic between grouped EC2 instances)
        
        Clients communicate with load balancer, load balancer communicates with EC2 instances
        
        Gateway load balancer
        
        App load balancer
        
        Stateless architecture
        
        Auto Scaling Group (each web server in EC2 has same code)
      - instance type
        
        General Pupose
        
        Compute Optimized
        
        Memory Optimized
        
        Accelerated Computing (GPU)
        
        Storage Optimized
        
        EC2 pricing
        
        On Demand
        
        EC2 saving plans
        
        Instance Reservation
        
        Spot Instance
        
        Dedicated Host (On demand or reserved)
      - Amazon Machine Images (AMI)
  - - - EC2 (lame!!)
      - AWS Fargate (serverless computing for containers)
- - - - "CloudFront"
- - - - Read Replica
        
        Multi-Master Clusters feature in Amazon Aurora DB (Read and Write for Scale out)
      - Performance
        
        General Purpose Storage (gp2)
        
        Provisioned IOPS (SSD) Storage
        
        Magnetic Storage (for backward compatibility)
      - Durability
        
        Creates multiple copies in other AZ for durability in case main db fails
      - Complex relations, not so simple tables
  - - - High integration with AWS
      - Horizontal scability
      - Key-value no sql db
      - Feature consistent read
      - sort key and primary (partition) key
      - each item has attributes
        
        Schema is defined per item
      - simple tables, no complex relations
    - - Like JSON
    - - Graph database (objects and relations between them)
    - - In memory DB (like Redis)
    - - DB for searching and analyzing
  - - - Amazon ElastiCache
- - - - Target (PostgreSQL) to Source(PostgreSQL same type of db)
        
        Target can be on premises, EC2, or RDS
        
        Source can be EC2 or RDS
      - Click a button and DMS will take care of everything
    - - Different scheme
  - - - Business
      - People
        
        This perspective responsible for finding needed skills and people for cloud adoption
      - Governance
      - Platform
        
        Architecture and Patterns in a cloud
      - Security
        
        Makes sure that all security requirements are fulfilled
      - Operations
        
        defines how solution operates from day-to-day, month-to-month- year-to-year perspective
  - - - "lift-and-shift", just moving all structure to AWS cloud
    - - "lift, tinker, and shift" move architecture with small cloud optimization
    - - purchase new license for services
    - - Leaving some applications on on-premise
    - - remove all excessive and not needed apps
  - - - AWS Snowcone is a small, rugged, and secure edge computing and data transfer device.
        It features 2 CPUs, 4 GB of memory, and 8 TB of usable storage.
    - - Snowball Edge Storage Optimized
        
        Snowball Edge Storage Optimized devices are well suited for large-scale data migrations and recurring transfer workflows, in addition to local computing with higher capacity needs.
        
        Storage: 80 TB of hard disk drive (HDD) capacity for block volumes and Amazon S3 compatible object storage, and 1 TB of SATA solid state drive (SSD) for block volumes.
        
        Compute: 40 vCPUs, and 80 GiB of memory to support Amazon EC2 sbe1 instances (equivalent to C5).
      - Snowball Edge Compute Optimized
        
        Snowball Edge Compute Optimized provides powerful computing resources for use cases such as machine learning, full motion video analysis, analytics, and local computing stacks.
        
        Storage: 42-TB usable HDD capacity for Amazon S3 compatible object storage or Amazon EBS compatible block volumes and 7.68 TB of usable NVMe SSD capacity for Amazon EBS compatible block volumes.
        
        Compute: 52 vCPUs, 208 GiB of memory, and an optional NVIDIA Tesla V100 GPU. Devices run Amazon EC2 sbe-c and sbe-g instances, which are equivalent to C5, M5a, G3, and P3 instances.
    - - AWS Snowmobile is an exabyte-scale data transfer service used to move large amounts of data to AWS.
        You can transfer up to 100 petabytes of data per Snowmobile, a 45-foot long ruggedized shipping container, pulled by a semi trailer truck.
- - - - Editing of file is faster because updating only blocks of file, not entire object like in S3
      - It is AZ resource and attached to one EC2 instance (EC2 have to be in the same AZ)
      - 2TB, it is not auto scalable
  - - - S3 Standard
      - S3 Glacier
        
        Write once/ read many(WORM)
      - S3 Standard Infrequent Access
      - S3 Lifecycle management
      - inteligent tier
  - - - seamless integration with existing infrastructure
      - Auto scalable
      - multiple EC2 instances
      - Regional resource