Amazon S3

Amazon Simple Storage Service is a object storage service built to store and retrieve any amount of data from anywhere in the internet.

  • Amazon S3 is a distributed architecture and objects are redundantly stored on multiple devices across multiple facilities (AZs) in an Amazon S3 region.

  • Amazon S3 is a simple key-based object store.

  • Amazon S3 provides a simple ,standard-based REST web services interface that is designed to work with any Internet-Development toolkit.

  • Files can be from 0TB to 5TB.

  • The largest object that can be uploaded in a single PUT is 5 gigabytes.

  • For objects larger than 100 MegaBytes use the Multipart Upload capability.

  • Event notifications for specific actions, can send alerts or trigger actions.

  • Notifications can be sent to:

    • SNS Topics
    • SQS Queues
    • Lambda functions
    • Need to configure SNS/SQS/Lambda before S3
    • No extra charges from S3 but you pay for SNS,SQS and Lambda.

  • Provides read after write consistency for PUTS for new objects.

  • Provides eventual consistency for overwrite PUTS and DELETES(Takes time to propogate).

  • S3 is made up of the following:

    • Key (name)
    • Value (data)
    • Version ID
    • MetaData
    • Access Control Lists
S3 Capability How it works?
Transfer Accelaration Speed up data uploads using CloudFront in reverse
Requester Pays The requester rather than the bucket owner pays for the requests and data transfer
Tags Assign tags to objects to use in costing,billing,security and etc
Events Trigger notifications to SNS,SQS,or lambda when certain events happen in your bucket
Static Web Hosting Simple and massively scalable website hosting
BitTorrent Use the BitTorrent protocol to retrieve any publicly available object by automatically generating a .torrent file
  • You can use S3 for following:
    • Backup and Storage: Providing data backup and storage services for others
    • Application Hosting: Provides services that deploy,install,and manage web applications.
    • Media Hosting: Building a redudant,scalable,and highly available insfrastrucute that hosts video,photo,or music uploads and downloads.
    • Software Delivery: Hosting software applications that customers can download.
    • Static Website: Hosting static sites such as html pages or blogsite.