Object-based storage technology enables building large-scale and highly-scalable cluster file systems using commodity hardware and software components. On the other hand, a hierarchy of storage subsystems with different costs and performance should be incorporated into such systems to make them affordable and cost-effective. Existing SAN-based (block-based) cluster solutions suffer from slow da...

This paper presents a proposal to em bed the file access control into object-based storage devices (OSD) to achieve powerf ul storage security with rich semantics; and two application pr ototypes, the OSD-based intrusion detection ( ID) and the f iner-grained (than the f ile-level) acce ss control, are im plemented to show its feasibility. To embed file access control into st orage, one of vita...

In Object-Based Storage System (OBSS) there are hundreds even thousands of storage devices to store peta-byte scale of data. A considerable part of such data is sensitive and needs to be encrypted. While existing storage security schemes encrypt entire files to ensure security, it is often unnecessary to encrypt all areas within a file. Otherwise, the encryption of a large number of non-sensiti...

Business requirements for data availability, survivability, and performance have driven the need for building the network storage that interconnects various kinds of storage devices to allow remote access by multiple hosts. A new revolutionary storage technology called “Object based Storage Devices (OSD)” is now emerging as a promising technology to meet the high performance needs and to addres...

Enterprise class architectures for cloud computing have begun to emerge, driven by recent advances in virtualization of servers, storage, and access networks. We present a hierarchy classification scheme for cloud services, based on whether the intrastructure, platform, or software is being provisioned and virtualized. We then discuss early adoption of public and private clouds based on the cli...

Object-based storage offloads some works of file systems to storage devices to improve security, scalability, and performance. Security is a main concern when sharing data over network. We examine the security model of object-based storage and find that there is some problem in the model. It can be disabled by modifying specific field in the command. We propose a solution to this problem by enc...

As main memory capacity increases more of the database read requests will be satis ed from the bu er system Consequently the amount of disk write oper ations relative to disk read operations will increase This calls for a focus on write optimized storage managers In this paper we show how the Vagabond object storage manager uses no overwrite sequential writing of long blocks to achieve high wri...

in management, the monitoring means systematic collection and storage of data from activities and strategies that provide assessment and report about the overall condition of the study area. in this research, among different existing methods, imdpa model was selected for monitoring desertification in garmsar plain. based on the study area two criteria including agriculture and water were select...

The combination of a removable storage device with a communication channel and a computation node is a common architectural theme in many system-on-chip (SOC) designs. The systems in which many of these devices are placed produce or consume digital media content from their removable storage devices, which are formatted with industrystandard file systems. When the communication channel is USB, t...