Abstract
Uses of Internet of things (IoT) devices and sensors have increased to a great extent in recent years. In order to facilitate computational and storage needs of low powered end devices for time-sensitive applications such as data analytic, which use IoT devices and sensors to get their work done, a new programming paradigm “Fog computing” has come into existence. Storage and processing capabilities of Fog Computing are similar to that of cloud computing. In addition to this, it facilitates in bringing these services closer to the edge of the network near to low powered end devices. Keeping in view the drawbacks of cloud computing, this article presents a comprehensive review on storage-as-a-service at Fog layer. It elaborates the scope and contribution of keeping storage closer to edge of the network. The article also classifies the current scenario in secure storage as a service near the edge of the network. Further, it discusses about the benefits of implementing storage at Fog layer.