Architecture of scalable backup service for private cloud

In this paper we propose a scalable backup service for virtualization infrastructure such as private cloud called hBaaS. hBaaS is designed to utilize existing infrastructure without the needs of additional equipment to provision it as-a-Service model. We propose an integrated solution for virtualization platform that scales as the total VMs increases. The solution addresses the issue of concentrated backup schedule on a specific time range which potentially cause resource bottleneck. We discuss two methods to reduce the backup workload footprint; by distributing the backup workload operation into multiple proxy servers and push the backup operations into background which increases the duration of time to backup but lessen the impact of backup operation to the infrastructure. Indirectly, hBaaS will be able to cater more backup requests from users.