HVSTO: Efficient Privacy Preserving Hybrid Storage in Cloud Data Center
This work addresses privacy and performance issues for virtual machine storage in large-scale cloud data centers, representing an incremental improvement over traditional shared storage.
The authors tackled the problem of privacy threats in centralized VM storage in cloud data centers by proposing HVSTO, a privacy-preserving hybrid storage system that uses a distributed structure and combines SSDs with distributed storage, resulting in scalable and sufficient throughput for platform-as-a-service infrastructure.
In cloud data center, shared storage with good management is a main structure used for the storage of virtual machines (VM). In this paper, we 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, we use a hybrid system to combine solid state disk and distributed storage. From the evaluation of our demonstration system, HVSTO provides a scalable and sufficient throughput for the platform as a service infrastructure.