O2S2: enhanced object-based virtualized storage

Object based storage devices (OSDs) elevate the level of abstraction presented to clients, thereby permitting them to offer methods for managing, sharing, and securing information that go beyond those offered by block-based stores. The Object-Oriented Storage System (O2S2) architecture presented and evaluated in this paper implements a virtualization service to provide object-based storage in a virtualized environment. This service provides a virtual object-based storage device (vOSD) to virtual machines. The use of vOSDs permits the service provider, i.e., the vOSD storage domain, to offer to guest virtual machines new methods for resource management and consolidation, without requiring the purchase of physical storage devices that faithfully implement OSD functionality. Methods demonstrated in this paper include improved support for access control and for heterogeneity of storage devices. Advantages derived from such methods also include reduced complexity for end clients, i.e., gue...

• Type: Journal
• Year: 2008
• Where: SIGOPS
• Authors: Himanshu Raj, Karsten Schwan
• Keywords: Object Based Storage, Object-based Storage, SIGOPS 2008, Storage Devices