public String getVirtualName() {
        return this.virtualName;
    }
<p>
The name of the instance store volume (virtual device) to attach to an instance at launch. The name must be in
the form ephemeral<i>X</i> where <i>X</i> is a number starting from zero (0), for example,
<code>ephemeral0</code>.
</p>

@return The name of the instance store volume (virtual device) to attach to an instance at launch. The name must
        be in the form ephemeral<i>X</i> where <i>X</i> is a number starting from zero (0), for example,
        <code>ephemeral0</code>.
aws-java-sdk-autoscaling/src/main/java/com/amazonaws/services/autoscaling/model/BlockDeviceMapping.java