MultiCloud Classroom notes 22/Mar/2025

Blob Storage

• This is a file storage where
  • you need not deal with filesystems
  • you can access the files over http(s)
  • you can use this for any file types
  • you can treat it is as unlimited storage.
  • individual file size restrictions are applicable (5TB)
• Why do we need this?
  • Google Drive, One Drive, iCloud all of them are internally blob storages.
  • All streaming/ott platforms uses blob storages
  • Data lakes on Blob storage
• How cloud’s charge for Blob Storage ?
  • Size
  • Data transfer costs
• To fine tune costs we have pricing models
  • Frequently accessed data:
    • Storage cost will be high
    • Data transfer cost will be least
  • In-Frequently accessed data:
    • Storage cost will be less
    • Data transfer cost will be high
  • Archival Storage:
    • Storage cost will be least
    • Data transfer (accessing) might not be allowed
• Blob Storages have options to enable them as Data Lakes.
• Blob Storages will have integration with Content Delivery Networks (CDN)
• Blob Storages can serve web applications (Static Webpages – HTML CSS, JavaScript)

AWS

Infrastructure

• Region: This is geographical area which has Availability Zones (AZ)
• AZ: This a location/site with in region where AWS hosts datacenters

S3

• Simple Storage Service (S3) is a service offered by AWS for Blob Storages.
• To use S3 we need to create a bucket (S3 Bucket)
• A Bucket will have a unique name across AWS.
• We can consider Bucket as unlimited storage with a restriction of individual file size cannot be greater than 5 TB
• Bucket will have permissions of who can access the data
• Buckets support versioning.

Terms

• Bucket: Bucket can have objects or folders or both
• Object: This represents file
• Permission

Creating first s3 bucket

• I will be creating s3 bucket in Hyderabad region with public read access enabled
  
  
• While creating bucket ensure ACL’s are enabled, and unselect disable public access
  

Uploading content to buckets

• Navigate into s3 bucket
  
• Upload any file (png or mp3 or mp4 or pdf)
  
  

Delete the buckets

• S3 buckets have to be empty before delete
• Note: Watch classroom video for steps

Exercise

• Create an s3 bucket in any region
• upload 3 files
• Ensure you can access over http(s)
• Delete the buckets