The article provides an overview of Amazon Elastic Block Store (EBS), a scalable block storage service intended for use with Amazon EC2 instances. It highlights EBS's capability to provide persistent storage that survives independently of EC2 instances, making it ideal for applications requiring durability and high performance, such as databases and critical workloads. The article details key features of EBS, including its various volume types optimized for different performance needs, the ability to take snapshots for backup, and strong security measures, such as data encryption and automatic replication for durability.
Key Points:
- What is AWS EBS: A scalable, high-performance block storage service linked to Amazon EC2 instances.
- Persistent Storage: Data remains intact when the EC2 instance is stopped or terminated.
- High Performance: Optimized for low-latency and high-throughput workloads, with multiple performance tiers available.
- Scalability: Users can resize volumes or transition performance tiers without downtime.
- Snapshots: Allows for easy backup of EBS volumes stored in Amazon S3.
- Encryption: Supports encryption for data at rest, in transit, and during snapshots.
- Availability and Durability: Automatically replicates volumes within an Availability Zone to guard against data loss.
- Volume Types:
- General Purpose SSD (gp3, gp2): Balanced performance for general workloads.
- Provisioned IOPS SSD (io2, io1): Designed for high-performance and latency-sensitive applications.
- Throughput Optimized HDD (st1): Tailored for big data and sequential workloads.
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