Course: AWS Cloud Practitioner Essentials - 5. Storage and Databases

Storage

• Block Storage
  • instance storage
  • EBS volumes
• Object Storage: S3
  • storage classes
• File Storage: Elastic File System (EFS)

Databases

• Relational Database Service (RDS)
  • database engines
    • Amazon Aurora
• DynamoDB
• Database Migration Service (DMS)
• additional services
  • Redshift
  • DocumentDB
  • Neptune
  • QLDB
  • Managed Blockchain
  • ElastiCache
  • DynamoDB Accelerator (DAX)

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storage types

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Block Storage

instance store (data lives with the instance) block storage physically attached to instances optimized

• speed
• not persistence

Elastic Block Store (EBS) persistence - data can outlive the instance (default deleted) single availability zone

roll-back to previous snapshot

EBS multi-attach

• attach EBS to multiple instances

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Object Storage object storage = access via api not file storage = nfs / smb

Object vs Block object: if you make a 1 pixel change, the whole object is changed block: if you make a 1 pixel change, the block containing that pixel is changed

Simple Storage Service (S3)

S3 storage classes

• Standard
• Standard IA (Infrequent Access)
• Standard One Zone IA (Infrequent Access)
• Intelligent Tiering
• Glacier Instant Retrieval
• Glacier Flexible Retrieval
• Glacier Deep Archive

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File Storage

Elastic File System (EFS) nfs or smb

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Database types

Relational Database Service (RDS)

can imitate api of: mysql XOR postgres why? (why not mysql / postgres

• it’s faster
• integration with AWS services

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Nonrelational aka “NoSQL” aka “Key-Value”

DynamoDB serverless key-value / nosql 10 trillion requests / day

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Database Migration Service (DMS)

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Additional database services

• Redshift
• DocumentDB
• Neptune
• QLDB
• Managed Blockchain
• ElastiCache
• DynamoDB Accelerator (DAX)

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Backlinks

• Course: AWS Cloud Practitioner Essentials - Robert Callaghan