Amazon Elastic Block Store (EBS) provides raw block-level storage that can be attached to Amazon EC2 instances. These block devices can then be used like any raw block device. In a typical use case, this would include formatting the device with a filesystem and mounting said filesystem. In addition EBS supports a number of advanced storage features, including snapshotting and cloning. As of June 2014, EBS volumes can be up to 1TB in size. EBS volumes are built on replicated back end storage, so that the failure of a single component will not cause data loss.
The EBS product was introduced to the general public by Amazon in August 2008 and as of April 2017 30 GB of free space is included in the free tier of Amazon Web Services.
Amazon EBS provides a range of options for storage performance and cost for workload. These options are divided into two major categories: SSD-backed storage for transactional workloads, such as databases and boot volumes (performance depends primarily on IOPS), and HDD-backed storage for throughput intensive workloads, such as MapReduce and log processing (performance depends primarily on MB/s).
Video Amazon Elastic Block Store
Amazon EBS Volume Types
The following table shows use cases and performance characteristics of current generation EBS volumes:
Looking for EBS Magnetic? See the Previous Generation Volumes page.
*Default volume type
**io1/gp2 based on 16K I/O size, st1/sc1 based on 1 MB I/O size
Maps Amazon Elastic Block Store
References
External links
- Amazon Elastic Block Store main page
Source of article : Wikipedia
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