Simple Storage Service(S3)

• Blob (Binary Large object) Storage
• Unlimited Storage.
• Each file/blob size cannot be grater than 5 TB
• S3 is organized into
  • Buckets
• Each Bucket has files (objects) and folders
• All the objects inside buckets can be accessed over https
• In S3 Buckets you can give permissions only to AWS (IAM) users or to everyone.
• All the objects are exposed over https, helps in achieving following use cases
  • Dropbox/Google Drive
  • Amazon Prime Video/Music/Netflix
  • Downloads in Websites

Cost of S3

• S3 cost includes
  • Size of Storage
  • Accessing the Storage
• Depending on your use case AWS gives different Storage Classes
  • Standard Storage:
    • Paying more for storage
    • Less for Accessing
    • Redundancy levels will be high
  • Reduced Redundancy:
    • Redundancy Levels will be less
  • Infrequent Access:
    • Paying more for Accessing
    • Paying Less for Storage
  • Glacier:
    • Archival kind of storage.
    • Storage cost will be much less
    • Zero Access cost (bcoz you cannot access the data directly from glacier)
  • Intelligent Tiers:
    • Amazon will automatically choose storage class depending on usage.
• Default Storage class is standard

Content Delivery Networks

• CDNs have
  • Origin Servers
  • Points Of Presence Servers.
• Refer Here for AWS Point of Presence Servers
• Data will be stored in S3 Buckets.
• For CDN
  • S3
  • Cloudfront (CDN)
  • Media Services.

Static Web Sites

• Any website which is developed in html, javascript and css (Static Websites) can be directly hosted on s3 buckets.