A layout-based energy-aware approach for virtual disk scheduling in cloud storage

作者：Li Jian Dun^*; Peng Jun Jie; Zhang Wu

来源：Acta Electronica Sinica, 2012, 40(11): 2247-2254.

DOI：10.3969/j.issn.0372-2112.2012.11.017

• Disk array
• Dynamic optimization
• Energy aware
• Energy-aware scheduling
• Limited space
• Virtual disk
• Working set

In cloud storage, how to effectively schedule user's request to specific disk becomes to be a hot topic. Considering the new requirements related to energy-aware scheduling algorithms proposed by cloud storage, e. g. sensitivity to request's response time and limited space left for dynamic optimization, this paper proposes a layout-based scheduling approach for virtual disks. The disk array is dynamically partitioned into two sets, working set and standby set respectively using this approach, and requests are mainly addressed by working set. Additionally, according to real-time workloads, the layout of virtual disks is optimized with standalone virtual disk as a unit. Results of experiments show that this approach can cut down the power of disk array, effectively alleviate the problem of prolonged response time, and achieve higher level of load balancing.

• 出版日期2012
• 单位上海大学