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How to Use AWS EBS in EC2 Instances

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Shat is AWS EBS

AWS EBS is a cloud-based storage service that provides persistent storage for data and applications used in Amazon EC2 instances. EBS volumes can be attached to and detached from running EC2 instances, making it easy to scale storage capacity as needed. EBS volumes are also replicated within an Availability Zone (AZ) to protect against data loss due to Availability Zone failures.

EBS provides three volume types that differ in performance and cost:

1. General Purpose (SSD) Volumes- These volumes offer a balance of price and performance for a wide variety of workloads such as boot volumes, small databases, development and test environments, and code repositories.

2. Provisioned IOPS (SSD) Volumes- These volumes are designed to deliver predictable, high performance for I/O intensive workloads such as large databases and enterprise applications.

3. Magnetic Volumes- Also known as Standard Volumes, these are the lowest cost per gigabyte of storage but provide the lowest performance. Magnetic volumes are a good choice for infrequently accessed data, backup and archival storage, and file sharing.

To create an EBS volume, you need to specify the following:

1. The size of the volume in gigabytes (GB)

2. The type of volume- General Purpose (SSD), Provisioned IOPS (SSD), or Magnetic

3. The Availability Zone in which to create the volume

4. (Optional) A name for the volume

Once you have created an EBS volume, you can attach it to an EC2 instance in the same Availability Zone. You can then format the volume and mount it as a file system on your instance. The volume will remain attached to the instance until you detach it.

When you attach an EBS volume to an EC2 instance, the instance can access the volume as if it were a local disk. The volume’s data is stored in Amazon S3, and EBS encrypts your data at rest with AES-256 encryption. You retain full control of your data and AWS manages the infrastructure to provide durability and availability.

EBS provides a number of benefits:

1. Persistent storage- Data stored on an EBS volume is persisted even if the EC2 instance is terminated.

2. Flexible storage size- You can increase or decrease the size of an EBS volume as needed.

3. Easy to use- EBS volumes can be easily created and attached to EC2 instances.

4. Reliable- EBS volumes are replicated within an AZ to protect against Availability Zone failures.

5. Secure- Data at rest on an EBS volume is encrypted with AES-256 encryption.

6. High performance- EBS volumes offer consistent, low-latency performance.

If you are using an EBS volume for the first time, you need to format it with a file system such as ext3 or NTFS. You can then mount the volume and access it like any other disk on your system.

How to set up an AWS EBS instance

There are a few steps you need to take in order to set up an AWS EBS instance. The first step is to create an Amazon EC2 instance. You can use the Amazon EC2 console, the command line interface (CLI), or the API to create an instance.

Once you have created an instance, you need to attach an EBS volume to the instance. You can do this using the Amazon EC2 console, the CLI, or the API.

Next, you need to format the EBS volume with a file system such as ext3 or NTFS. You can then mount the volume and access it like any other disk on your system. Finally, you need to install the operating system on the EBS volume.

You can install the operating system on an EBS volume in one of two ways:

1. You can copy the operating system installation files to the EBS volume and then install the operating system.

2. You can use a bootstrap script to install the operating system automatically.

AWS EBS provides a number of benefits, including persistent storage, flexible storage size, easy to use, reliable, secure, and high performance. Setting up an AWS EBS instance is a straightforward process that can be completed in a few steps.

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