Overview of EC2 Instance Store
An EC2 Instance Store provides temporary, block-level storage for your EC2 instance. This storage is physically attached to the host computer that powers the instance. Because it is physically connected, it offers very high performance and low latency compared to network-attached storage like EBS.
Ephemeral: Data is lost if the instance is stopped, terminated, or if the underlying hardware fails.
Performance: Ideal for temporary data, such as caches, buffers, scratch data, and other temporary content.
Cost: Included in the cost of the instance; you do not pay extra for the storage capacity itself.
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