AWS Classroomnotes 22/Aug/2023

AWS Storage

• Blob Storage or object storage:
  • This is a storage system for files.
  • In terms of cloud Blob storage allows us to upload any files and access them over https.
  • Doesnot require any filesystem.
  • Examples:
    • Azure: Storage Account
    • AWS: Simple Storage Service (S3)

S3: Simple Storage Service

• As a user S3 is an unlimited storage space with no restrictions on any number of files which you can add.
• There is one restriction: Individual file size cannot be greater than 5 TiB
• S3 has two dimensional pricing
  • storage cost
  • access cost
    ### Storage Classes
• Storage class in S3 define the access and storage costs Refer Here
• Storage classes:
  • Standard:
    • High Storage cost
    • low access cost
    • default storage class
  • Infrequent Access
    • Low storage cost
    • High access cost
  • Glacier
    • No access
    • cheapest storage cost
• They determine availability and durability

Redundancy

• Multiple copies of the data are stored in different AZ’s

Pricing calculator

• Refer Here for pricing calculator

How data in S3 is organized

• S3 has buckets. Each bucket will have a web(https) url, so no two buckets can have same name. Refer Here for bucket naming rules
• In each bucket we can have
  • folder:
    • this is logical container which can have other folders or objects
  • object: this represents a file.

Create a simple s3 bucket with public option

• Steps
  
  
  
  
  
  
• Now navigate into bucket and upload some mp3 or mp4 or pdf or png or txt
  
  
  
• Refer Here for the mp3 file uploaded .
• Exercise: Create a simple s3 bucket with public access blocked