AWS Classroom Series – 26/May/2021

Object Storage and Amazon S3

  • Amazon S3 stores objects in containers which are referred as buckets

  • We can set access controls specific to an individual bucket or an individual object(s)

  • Creating an S3 bucket:

    • To create an s3 bucket we need to
      • choose the region
      • specify a bucket name
    • AWS creates a virtual hosted URL
    https://<bucket name>
    https://<bucket name>.s3.<region name>
    • Regions: Preview
    • S3 urls are exposed using endpoints Refer Here
    Region name Region URL Examples of S3 endpoints
    US East (N. Virgina) us-east-1
    US West (Oregon) us-west-2
    Asia Pacific (Mumbai) ap-south-1
    • Bucket names should be unique across AWS
    • Lets create a s3 bucket and upload an image Preview Preview Preview Preview
    • For Bucket naming rules Refer Here
    • In S3 buckets we have objects and folders Preview
  • When it comes to storing the data there are following concerns

    • Running out of space => S3 has unlimited storage
    • Durability:
      • The durability of S3 is 99.99999999999 (elven 9’s) percentage.
      • The above number means if we store 10000 objects with Amazon S3, we might loose one object every 10 million years.
    • Availability: The availability is determined by which storage class you are using in AWS S3. The availability promised is also defined in SLA.
  • In AWS we can create up to 100 buckets per account and this can be increased to a maximum of 1000 buckets.

S3 Pricing

  • We use S3 to store data. The pricing of S3 is two fold
    • Paying for storage
    • Paying for accessing
  • To tune your bucket or objects according to the needs AWS has storage classes.
  • Storage classes also impact availability Preview
  • In AWS we have the following storage classes
    • Standard
    • Infrequent access
    • One-Zone Infrequent access
    • Intelligent tier
    • glacier
    • Reduced Redundancy

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