EBS<\/a> is a high-performance, network-attached block storage<\/a> service designed for use with EC2<\/a> instances within the AWS<\/a> ecosystem. It provides the persistent storage required for a wide range of workloads, including relational and non-relational databases, enterprise applications, and big data analytics engines. Unlike Instance Store<\/a>, which is ephemeral, data on EBS<\/a> volumes persists independently of the life of the instance to which it is attached.<\/p> Amazon categorizes EBS<\/a> volumes into two main categories: SSD<\/a>-backed storage for transactional workloads and HDD<\/a>-backed storage for throughput-intensive workloads. Common types include:<\/p> Performance can be fine-tuned by selecting EBS-Optimized<\/a> instances, which provide dedicated bandwidth between EC2<\/a> and EBS<\/a>. Detailed specifications can be found on the AWS Volume Types documentation<\/a>.<\/p> EBS<\/a> volumes are automatically replicated within their Availability Zone<\/a> to protect against hardware failure. For further protection, users can create Snapshots<\/a>, which are incremental backups stored in S3<\/a>. Security is managed through Encryption<\/a>, which uses KMS<\/a> keys to secure data at rest and in transit between the instance and the volume. For more information on security best practices, visit the AWS EBS Resources<\/a> page.<\/p>Volume Types and Performance Characteristics<\/h2>
Data Durability and Security<\/h2>