AWS S3 Storage Classes

S3 storage classes

AWS S3 provides us with an array of storage classes suitable for different use cases. For the exam, it’s crucial that you understand the differences between these classes and make the right choice for each use case.

We can configure S3 storage classes at the object level, and a single bucket can contain objects stored across multiple S3 storage classes. Let’s review each storage type in detail.

Based on how we access S3 objects, S3 storage classes can be divided into four categories.

• Standard
• Infrequent access
• Unknown or changing access
• Archive

Standard

Here are some storage classes for highly available and durable storage requirements.

S3 Standard

S3 Standard is a general-purpose storage class for frequently accessed data. In this storage class, the data is stored across at least three AZs in a region, providing high durability and availability. This class is ideal for cloud applications, dynamic websites, content distribution, mobile and gaming applications, and big data analytics.

Features:

• Offers high throughput and low-latency access.
• Provides 99.999999999% durability of objects.
• Provides 99.99% availability of objects over a year.
• Supports frequent access.
• Supports encryption of data in transit (using SSL protocols) and at rest (using server-side or client-side encryption).

Infrequent access

S3 provides two storage classes for infrequently accessed data.

S3 Standard-IA storage class

S3 Standard-IA storage class is for infrequently accessed data that ...