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Shared Volume In AWS

In this article, we will discuss the shared volume in AWS.

Steps

For creating the shared volume, we will work on the following steps: -

Launch 2 EC2 instances
Create a volume with multi-attached enabled
Attach volume with both EC2 instances
Format and mount the disk in the first EC2
Check the volume in the second EC2

Let us work on each step.

Launch 2 EC2 Instances

First, launch the EC2 instance. Follow this link for launching an EC2 instance. All the steps will remain the same, except you have to select C5.Large instance type.

Picture showing the list of instances to choose from

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And in the Summary, the Number of instances should be 2.

Picture showing the number of instances created

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Once you follow the above process, you can see that 2 EC2 instances are launched.

Picture showing the 2 EC2 instances created in AWS console

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Create A Volume With Multi-Attached Enabled

Next step is to create the volume. You can refer to this article for volume creation. But there are some important changes that you need to perform while creating a volume.

Picture showing the screen for creating multi-attached volume in AWS

Click to Enlarge

Parameters	Volume	Description
Volume Type	Provisioned IOPS SSD (io2)
Availability Zone	us-east-1b	The availability zone should be the same as that of EC2.
Multi-attach	Checked

Attach Volume With Both EC2 Instances

Attach the volume with the first EC2 instance.

Click to Enlarge

In the similar manner, attach the volume with the second EC2 instance.

Click to Enlarge

If you are not aware how to attach the volume, you can refer to this link.

Format And Mount The Disk In The First EC2

Go to any EC2 and follow this link to format and mount the volume. Once the volume is mounted, you can create a file in the new drive.

Picture showing creating a text file in the new volume in the first EC2 instance

Click to Enlarge

Check The Volume In The Second EC2

Open the second EC2 instance and check the new drive. If you do not see the drive, you can make the disk offline and then online. You can refer to this article.

You can see the same file in EC2 as well.

Picture showing the text file appears in the new volume of the second EC2 instance

Click to Enlarge

Posted By -	Karan Gupta

Posted On -	Thursday, October 14, 2021

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