Amazon S3 - Creating a S3 Bucket

Amazon S3 (Simple Storage Service) is a scalable and secure object storage service provided by AWS. It allows you to store and retrieve large amounts of data from anywhere over the internet.

Storage: Virtually unlimited storage capacity.
Object Size: Supports individual objects up to 5 TB.

Core Concepts

To understand Amazon S3, it is essential to get familiar with its three primary building blocks:

1. Bucket

Concept: A bucket is a logical container for your data, behaving like a top-level folder or directory.
Globally Unique Name: Bucket names must be globally unique across all AWS accounts worldwide. (e.g., my-company-backup-2025 is unique, but my-bucket is not).
Regional Nature: When creating a bucket, you must choose a specific AWS Region where the data will be stored.

2. Object

Concept: An object is the actual data unit being stored, which can represent any file format like an image, video, log, or database backup.
Data Capacity: Individual objects can range from 0 bytes up to a maximum size of 5 Terabytes.
Metadata Support: Consists of key-value pairs representing descriptive info about the file (e.g., Content-Type: image/jpeg).

3. Key

Concept: A key is the unique identifier or name assigned to an object inside an S3 bucket.
Hierarchical Simulation: Amazon S3 uses a flat storage structure, but keys can include slashes (/) to simulate folders. (e.g., s3://my-bucket/images/puppy.jpg).