S3 (Simple Storage Service) – Scalable, durable object storage used everywhere.

 

  • Amazon S3 stands for Simple Storage Service, used for storing and retrieving data.

  • It provides unlimited storage with 99.999999999% (11 nines) durability.

  • Stores data as objects inside buckets, each with data, metadata, and a unique key.

  • Supports multiple storage classes like Standard, IA, One Zone IA, Glacier.

  • Offers strong security, encryption, versioning, and scalability for any workload.


    • Amazon S3 Object

    These attributes describe how an S3 object is stored, identified, versioned, secured, and accessed inside an S3 bucket.

    Quick Breakdown

    • Key → The unique name/path of the object inside the bucket.

    • Version ID → Identifier for different versions of the same object (if versioning is enabled).

    • Value → The actual data/content stored in the object.

    • Metadata → Additional information like content-type, size, custom headers, etc.

    • Access Permissions → Who can access the object (ACLs, bucket policy, IAM policies).

    S3 Bucket Naming Rules (Summary)

    • Bucket name must be between 3 and 63 characters.

    • Only lowercase letters, numbers, hyphens (-), and dots (.) are allowed.

    • Must start and end with a letter or number.

    • No spaces or uppercase letters allowed.

    • Name must not be in IP address format (e.g., 192.168.1.1)


    Ways to Upload Files to an S3 Bucket

    There are 4 ways to upload files into S3:

    1. GUI (AWS Management Console)

    2. CLI (AWS Command Line Interface)

    3. API (REST API calls)

    4. SDK (Using programming languages like Python, Java, Node.js, etc.)


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