Private Cloud Cooperation Framework of E-Learning Environment for Disaster Recovery

In this research, we have built a framework of disaster recovery such as against earthquake and tsunami disaster for e-Learning environment. We build a prototype system based on IaaS architecture, and this prototype system is constructed by several private cloud computing fabrics. These private cloud fabrics are constructed to operate one large private cloud fabric under the VPN connection. The distributed storage system builds on each private cloud fabric, that is handled almost like same block device such as one large file system. For LMS (Learning Management System) to work, we need to boot virtual machines. The virtual machines are booted from the virtual disk images that are stored into the distributed storage system. The distributed storage system will be able to keep running as one large file system when some private cloud fabric does not work by any troubles. We think that our inter-cloud framework can continue working for e-Learning environment under the post-disaster situation. In this paper, we show our inter-cloud cooperation framework and the experimental results on the prototype configuration.