AWS Classroomnotes 07/Apr/2023

AWS S3 Contd

• Redundancy:
  • By default AWS creates 3 copies of each object and stores them in 3 zones.
  • If we select reduced redundancy then it stores only in one zone
• Create s3 bucket with acls enabled and ensure block all public access is unselcted
  
• Upload any object into some folder (music)
  
• Storage Classes
  • Standard (default):
    • Frequently accessed
    • high storage cost
    • more redundancy
    • free tier plan (5 GB)
    • most widely used.
  • Infrequent Access:
    • For older data which is not used frequently
    • Storage cost => less
    • access cost => more
    • Redundancy is more
  • One Zone -IA:
    • less durable and infrequent access
  • Intelligent Tier: where aws chooses storage class based on usage.
    
• The url is https://qtstoragedemoforaccess.s3.ap-south-1.amazonaws.com/music/one.mp3 i.e https://<s3-bucketname>.s3.region.amazonaws.com/<object>
• To change storage class select object and edit storage class.
• I want to have the object
  • for the first 30 days in Standard
  • 31-180 days in onezone – ia
  • 181-1000 days in glacier
  • 1001 day delete
• For the above mentioned cases, AWS has Storage lifecycle
  
  
  
  
  
  
• Create a text file and upload to s3 bucket with public access with some content Hello
  
• Now change the content and upload the file again
  
• When we upload the older content was overwritten. If you need to preserve the changes and content, enable versioning
  
  
  
• AWS Supports Enable and suspend versioning.