It acts as a local disk, and it's easy to back up. If you want any data to outlive the instance, you need permanent storage. When you terminate an EC2 instance, AWS destroys its local store. EBS Use CasesĮBS's primary use is for persistent data for EC2 instances. All of your data will be encrypted at rest using Amazon's keys, or if you wish to manage the keys, you can use AWS Key Management Service. You can also save "point-in-time" snapshots of your volumes to Amazon Simple Storage Service (S3.)Īmazon EBS encryption will encrypt all volume types for you, using their secure key management infrastructure. You can also create volumes up to 64 TB in size with 260,000 maximum IOPS and 7500 MB/s of throughput per instance.Įven if you don't opt for the highest-performance (and most costly) EBS volume, EBS offers a minimum of 99.8% availability and replicates all volumes within their availability zone. This means it can perform better and more reliably than standard storage options.ĭepending on the volume type, your storage is backed up within the same availability zone, giving a 99.999% uptime rate. But, unlike a dedicated local storage device, EBS is backed by AWS' high-availability cloud infrastructure. It looks and performs like a local storage device for Amazon EC2 compute instances. Let's dive in! What Is EBS?ĮBS is Amazon's block storage offering for AWS. In this post, we'll look at EBS, what it has to offer, and how you can master EBS pricing. But those different options can get complicated and makes managing EBS pricing difficult. It's the filesystem you use to add persistence to your Elastic Compute Cloud (EC2) instances and offers various configurations to suit your computing needs. Elastic Block Storage (EBS) is one of the fundamental building blocks for an AWS cloud application.
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