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Extend EBS Volume

Luthfi Anandra
DevOps and Open Source Enthusiast
・2 min read

In this article, i want to share some information how to extend your aws ebs volume. In this example, i use ec2 instance with ubuntu operating system and mount gp2 ebs volume to that ec2.

EC2 instance is using non Nitro System or non NVMe volume

The scenario is, i have existing ebs volume with size 10 GB then i want to extend the volume to 20 GB

Here are few configuration steps to extend linux ebs volume:

  1. Verify existing disk usage. Type df -hT

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  2. Verify existing block device. Type lsblk

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  3. Based on example existing configuration, disk space is configured with 10 GB in size.

  4. Go to aws console. Go to menu EC2 > Elastic Block Store > Volumes. Click on the block store that want to be extended

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  5. To prevent any unwanted issues, you can optionally create a snapshot for that ebs. Go to menu Actions > Create Snapshot

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  6. Configure snapshot description and tag (optional). After that, click Create Snapshot

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  7. Wait until create snapshot request succeeded, then click Close

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  8. Verify snapshot has been successfully created. Go to menu Elastic Block Store > Snapshot. Then verify

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  9. Then, you can modify your EBS volume. Go to menu Elastic Block Store > Volumes. Click on the volume you want to extend. Then click Actions > Modify Volume

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  10. Modify volume size, after that click Modify

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  11. Modify volume confirmation page will be prompted. Click Yes to continue

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  12. Wait until modify volume request succeeded

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  13. Verify volume has been modified

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  14. SSH to your EC2 instance. Type this command:

    sudo growpart [block_number]

    in this example, the command should be:

    sudo growpart /dev/xvda 1

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  15. Verify block device size has been extended

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  16. Resize your block device to new size. Type this command:

    sudo resize2fs [block_number]

    in this example, the command should be:

    sudo resize2fs /dev/xvda1

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  17. Verify your disk space has been extended

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For further reference you can also check aws documentation on this link:

Link

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