University of Airlangga
In cloud data center, shared storage with good management is a main structure used for the storage of Virtual Machines (VM). In this paper, the authors proposed Hybrid Vm STOrage (HVSTO), a privacy preserving shared storage system designed for the virtual machine storage in large-scale cloud data center. Unlike traditional shared storage, HVSTO adopts a distributed structure to preserve privacy of virtual machines, which are a threat in traditional centralized structure. To improve the performance of I/O latency in this distributed structure, they use a hybrid system to combine solid state disk and distributed storage.