Introduction to AWS Elastic Block Store (EBS)

Front

What is AWS Elastic Block Store (EBS)?

Back

EBS is a block type durable and persistent storage that can be attached to EC2 instances for additional storage.

Front

How does EBS differ from EC2 instance storage?

Back

EBS volumes are suitable for essential and long-term data, while EC2 instance storage is for temporary data.

Front

What is the scalability feature of EBS?

Back

EBS volume sizes and features can be scaled by taking a snapshot and creating a new volume or updating the existing volume.

Front

What is the purpose of EBS snapshots?

Back

Snapshots act as backups and can be created manually or scheduled; they are stored on AWS S3.

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What encryption feature does EBS offer?

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EBS offers AWS managed encryption, which can be enabled when creating EBS volumes.

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What are the types of EBS volumes?

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EBS volumes can be SSD (General Purpose SSD and Provisioned IOPS SSD) or HDD (Cold HDD and Throughput Optimized HDD).

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What is the maximum IOPS speed for Provisioned IOPS SSD (IO1)?

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The maximum IOPS speed for IO1 is 20,000.

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What is the main drawback of EBS?

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EBS is not recommended for temporary storage and cannot be shared between instances.

Front

How are EBS volumes charged?

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Users are charged for the storage they hold, regardless of how much they use.

Front

What is the relationship between EBS volumes and availability zones?

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EBS volumes are specific to availability zones and can only be attached to EC2 instances within the same zone.