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AWS::EC2::Instance Volume
Specifies a volume to attach to an instance.
Volume is an embedded property of the 
            AWS::EC2::Instance resource.
Syntax
To declare this entity in your AWS CloudFormation template, use the following syntax:
Properties
- Device
- 
                    The device name (for example, /dev/sdhorxvdh).Required: Yes Type: String Update requires: No interruption 
- VolumeId
- 
                    The ID of the EBS volume. The volume and instance must be within the same Availability Zone. Required: Yes Type: String Update requires: No interruption