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What is the main difference between Amazon EC2 instance stores and Amazon EBS volumes?

publish date: 2025/03/21 03:42:45.236644 UTC

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Instance stores have a higher latency connecting to EC2 instances, Amazon EBS volumes have a lower latency connecting to EC2 instances
Instance stores offer sliding tier performance options, Amazon EBS volumes offer fixed performance tiers
Instance stores are available only in SSD options, Amazon EBS volumes are available in SSD and HDD options
Instance stores are ephemeral (temporary), Amazon EBS volumes are persistent

Correct Answer

Instance stores are ephemeral (temporary), Amazon EBS volumes are persistent

Explanation

There are several differences between Amazon EC2 instance stores and Amazon EBS volumes. The main difference is that instances stores are ephemeral (temporary) and Amazon EBS volumes are persistent. 

Instance stores are deleted when the associated EC2 instance is deleted. Amazon EBS volumes exist separate from the EC2 instance and can be moved to another instance if required. You data remains intact regardless of the state of the attached EC2 instance.

Reference

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