AWS-ExtendEbsVolume - Amazon Systems Manager Automation runbook reference
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The AWS-ExtendEbsVolume runbook increases the size of an Amazon EBS volume and extends the file system. This automation supports the xfs and ext4 file systems.

Run this Automation (console)

Document type





Linux, Windows


  • AutomationAssumeRole

    Type: String

    Description: (Optional) The Amazon Resource Name (ARN) of the Amazon Identity and Access Management (IAM) role that allows Systems Manager Automation to perform the actions on your behalf. If no role is specified, Systems Manager Automation uses the permissions of the user that starts this runbook.

  • DriveLetter

    Type: String

    Description: (Optional) The letter of the drive whose file system you want to extend. This parameter is required for Windows instances.

  • InstanceId

    Type: String

    Description: (Optional) The ID of the Amazon EC2 instance that the Amazon EBS volume you want to extend is attached to.

  • KeepSnapshot

    Type: Boolean

    Default: true

    Description: (Optional) Determines whether to keep the snapshot created before increasing the size of your Amazon EBS volume.

  • MountPoint

    Type: String

    Description: (Optional) The mount point of the drive whose file system you want to extend. This parameter is required for Linux instances.

  • SizeGib

    Type: String

    Description: (Required) The size in GiB that you want to modify your Amazon EBS volume to.

  • VolumeId

    Type: String

    Description: (Required) The ID of the EBS volume that you want to extend.

Required IAM permissions

The AutomationAssumeRole parameter requires the following actions to use the runbook successfully.

  • ec2:CreateSnapshot

  • ec2:CreateTags

  • ec2:DeleteSnapshot

  • ec2:DescribeVolumes

  • ec2:ModifyVolume

  • ssm:DescribeInstanceInformation

  • ssm:GetCommandInvocation

  • ssm:SendCommand

Document Steps

  • aws:executeScript - Increases the size of the volume to the value that you specify in the VolumeId parameter and extends the file system.