public TGWOnDeviceServiceConfiguration withStorageUnit(String storageUnit) {
        setStorageUnit(storageUnit);
        return this;
    }
<p>
The scale unit of the virtual tapes on the device.
</p>

@param storageUnit
       The scale unit of the virtual tapes on the device.
@return Returns a reference to this object so that method calls can be chained together.
@see StorageUnit
aws-java-sdk-snowball/src/main/java/com/amazonaws/services/snowball/model/TGWOnDeviceServiceConfiguration.java