AWS STORAGE SERVICES

🔹 AWS STORAGE SERVICES

1️⃣ Amazon S3 (Simple Storage Service)

✅ Service Overview

Amazon S3 is a scalable object storage service used to store and retrieve any amount of data from anywhere on the web.

✅ Key Features

99.999999999% durability

Unlimited scalability

Versioning & lifecycle management

Encryption and IAM-based access control

✅ AWS Category / Cloud Domain

Storage → Object Storage

✅ Where It Fits in Cloud / DevOps Lifecycle

Backup & restore

Data lakes

Static website hosting

CI/CD artifact storage

✅ Programming Language / Access Methods

REST API

AWS SDKs (Java, Python, Node.js, Go)

AWS CLI & Management Console

✅ Pricing Model

💰 Pay for storage used, requests, and data transfer

2️⃣ Amazon EBS (Elastic Block Store)

✅ Service Overview

Amazon EBS provides persistent block-level storage for Amazon EC2 instances.

✅ Key Features

High performance SSD/HDD volumes

Snapshots for backup

Encryption at rest

Low-latency storage

✅ AWS Category / Cloud Domain

Storage → Block Storage

✅ Where It Fits in Cloud / DevOps Lifecycle

OS and application disks for EC2

Databases and transactional workloads

✅ Programming Language / Access Methods

Mounted as a disk on EC2

Managed via AWS CLI, SDKs, Console

✅ Pricing Model

💰 Pay per GB provisioned + snapshot storage

3️⃣ Amazon EFS (Elastic File System)

✅ Service Overview

Amazon EFS is a fully managed, scalable file storage service for Linux-based workloads.

✅ Key Features

Shared file access

Automatic scaling

POSIX-compliant

Highly available

✅ AWS Category / Cloud Domain

Storage → File Storage

✅ Where It Fits in Cloud / DevOps Lifecycle

Shared file systems

Container and microservices workloads

Content management systems

✅ Programming Language / Access Methods

NFS protocol

Access via EC2, EKS, Lambda

✅ Pricing Model

💰 Pay per GB of storage used

4️⃣ Amazon S3 Glacier

✅ Service Overview

Amazon S3 Glacier is a low-cost archival storage service for long-term data retention.

✅ Key Features

Very low storage cost

Multiple retrieval options (minutes to hours)

High durability

Integrated with Amazon S3

✅ AWS Category / Cloud Domain

Storage → Archival Storage

✅ Where It Fits in Cloud / DevOps Lifecycle

Long-term backups

Compliance & archival storage

Disaster recovery

✅ Programming Language / Access Methods

AWS SDKs

AWS CLI & Console

Managed through Amazon S3 lifecycle rules

✅ Pricing Model

💰 Low storage cost + retrieval-based pricing

🔑 Quick Exam Memory Aid

S3 → Object storage

EBS → Block storage

EFS → File storage

Glacier → Archive storage