In this paper, we introduced a novel storage architecture 'Unified Storage Network', which merges NAC( Network Attached Channel) and SAN( Storage Area Network) , and provides the file I/O services as NAS devic...In this paper, we introduced a novel storage architecture 'Unified Storage Network', which merges NAC( Network Attached Channel) and SAN( Storage Area Network) , and provides the file I/O services as NAS devices and provides the block I/O services as SAN. To overcome the drawbacks from FC, we employ iSCSI to implement the USN( Unified Storage Network) . To evaluate whether iSCSI is more suitable for implementing the USN, we analyze iSCSI protocol and compare it with FC protocol from several components of a network protocol which impact the performance of the network. From the analysis and comparison, we can conclude that the iSCSI is more suitable for implementing the storage network than the FC under condition of the wide-area network. At last, we designed two groups of experiments carefully.展开更多
With development of networked storage and its applications, united storage network (USN) combined with network attached storage (NAS) and storage area network (SAN) has emerged. It has such advantages as high performa...With development of networked storage and its applications, united storage network (USN) combined with network attached storage (NAS) and storage area network (SAN) has emerged. It has such advantages as high performance, low cost, good connectivity, etc. However the security issue has been complicated because USN responds to block I/O and file I/O requests simultaneously. In this paper, a security system module is developed to prevent many types of attacks against USN based on NAS head. The module not only uses effective authentication to prevent unauthorized access to the system data, but also checks the data integrity. Experimental results show that the security module can not only resist remote attacks and attacks from those who has physical access to the USN, but can also be seamlessly integrated into underlying file systems, with little influence on their performance.展开更多
With the digital information and application requirement on the Internet increasing fleetly nowadays,it is urgent to work out a network storage system with a large capacity,a high availability and scalability.To solve...With the digital information and application requirement on the Internet increasing fleetly nowadays,it is urgent to work out a network storage system with a large capacity,a high availability and scalability.To solve the above-mentioned issues,a NAS-based storage network(for short NASSN)has been designed.Firstly,the NASSN integrates multi-NAS,iNAS(an iSCSI-based NAS)and enterprise SAN with the help of storage virtualization,which can provide a greater capacity and better scalability.Secondly,the NASSN can provide high availability with the help of server and storage subsystem redundancy technologies.Thirdly,the NASSN simultaneously serves for both the file I/O and the block I/O with the help of an iSCSI module,which has the advantages of NAS and SAN.Finally,the NASSN can provide higher I/O speed by a high network-attached channel which implements the direct data transfer between the storage device and client.In the experiments,the NASSN has ultra-high-throughput for both of the file I/O requests and the block I/O requests.展开更多
A multi-user view file system (MUVFS) and a security scheme are developed to improve the security of the united storage network (USN) that integrates a network attached storage (NAS) and a storage area network (SAN). ...A multi-user view file system (MUVFS) and a security scheme are developed to improve the security of the united storage network (USN) that integrates a network attached storage (NAS) and a storage area network (SAN). The MUVFS offers a storage volume view for each authorized user who can access only the data in his own storage volume, the security scheme enables all users to encrypt and decrypt the data of their own storage view at client-side, and the USN server needs only to check the users’ identities and the data’s integrity. Experiments were performed to compare the sequential read, write and read/write rates of NFS+MUVFS+secure_module with those of NFS. The results indicate that the security of the USN is improved greatly with little influence on the system performance when the MUVFS and the security scheme are integrated into it.展开更多
This paper presents a solution for optimal business continuity, with storage architecture for enterprise applications, which will ensure zero data loss and quick recovery. The solution makes use of Internet protocol s...This paper presents a solution for optimal business continuity, with storage architecture for enterprise applications, which will ensure zero data loss and quick recovery. The solution makes use of Internet protocol storage area network （IPSAN）, which is used for data management without burdening the application server, as well as mix of synchronous and semi-synchronous replication techniques to replicate data to remote disaster recovery site. We have presented the detailed design of both synchronous and semi-synchronous with case study of using open source database postgres to prove our point for optimal business continuity. The theoretical presentation is also given for the same.展开更多
随着互联网技术的快速发展,数据的爆炸式增长,存储系统的软硬件紧耦合设计严重地限制了存储技术的发展,也越来越无法满足移动互联网和大数据时代下对存储系统快速、多变的需求.软件定义网络(storage defined network,SDN)作为一种新的...随着互联网技术的快速发展,数据的爆炸式增长,存储系统的软硬件紧耦合设计严重地限制了存储技术的发展,也越来越无法满足移动互联网和大数据时代下对存储系统快速、多变的需求.软件定义网络(storage defined network,SDN)作为一种新的网络架构,更适合下一代数据中心的发展.在SDN思想基础上,提出了一种基于控制中心的新型SAN架构(controller-based SAN,CSN),该架构分离FC交换机的协议控制面和数据面,将FC协议的控制功能和分布式服务功能部署在控制器中,随后详细阐述了该架构的控制器设计、通信机制和整体机制的设计与实现.在CSN基础上,又提出了按需可用带宽优先路由协议.最后,通过实际开发环境验证该架构的可行性.通过实验测试,得出CSN下服务器能够更快地与存储服务器建立连接,并且存储网络具有更高的吞吐量、更快的收敛性、更好的可靠性和可扩展性,此外,还对中心控制器的CPU、内存和带宽进行压力测试.展开更多
With the increasing explosively of data in network,more and more people pay attention to the networked storage ,currently the main technology of networked storage is NAS ( Network Attached Storage )and SAN ( Storage A...With the increasing explosively of data in network,more and more people pay attention to the networked storage ,currently the main technology of networked storage is NAS ( Network Attached Storage )and SAN ( Storage Area Network ). They are different ,and they are not competed but complement ,they are used in different occasion.To reduce the TOC (total of cost),people hope to merges the two technology :design a united storage network,it can supply the virtues and overcome the drawbacks of the NAS and SAN. This paper analysis and discuss the topic.展开更多
文摘In this paper, we introduced a novel storage architecture 'Unified Storage Network', which merges NAC( Network Attached Channel) and SAN( Storage Area Network) , and provides the file I/O services as NAS devices and provides the block I/O services as SAN. To overcome the drawbacks from FC, we employ iSCSI to implement the USN( Unified Storage Network) . To evaluate whether iSCSI is more suitable for implementing the USN, we analyze iSCSI protocol and compare it with FC protocol from several components of a network protocol which impact the performance of the network. From the analysis and comparison, we can conclude that the iSCSI is more suitable for implementing the storage network than the FC under condition of the wide-area network. At last, we designed two groups of experiments carefully.
文摘With development of networked storage and its applications, united storage network (USN) combined with network attached storage (NAS) and storage area network (SAN) has emerged. It has such advantages as high performance, low cost, good connectivity, etc. However the security issue has been complicated because USN responds to block I/O and file I/O requests simultaneously. In this paper, a security system module is developed to prevent many types of attacks against USN based on NAS head. The module not only uses effective authentication to prevent unauthorized access to the system data, but also checks the data integrity. Experimental results show that the security module can not only resist remote attacks and attacks from those who has physical access to the USN, but can also be seamlessly integrated into underlying file systems, with little influence on their performance.
基金Sponsored by the National Natural Science Foundation of China(Grant No.60673191and90304011)Science Innovation Term Foundation of Guang-dong University of Foreign Studies(Grant No.GW2006-AT-005)Science Innovation Term Foundation of School of Informatics Guangdong University of Foreign Studies.
文摘With the digital information and application requirement on the Internet increasing fleetly nowadays,it is urgent to work out a network storage system with a large capacity,a high availability and scalability.To solve the above-mentioned issues,a NAS-based storage network(for short NASSN)has been designed.Firstly,the NASSN integrates multi-NAS,iNAS(an iSCSI-based NAS)and enterprise SAN with the help of storage virtualization,which can provide a greater capacity and better scalability.Secondly,the NASSN can provide high availability with the help of server and storage subsystem redundancy technologies.Thirdly,the NASSN simultaneously serves for both the file I/O and the block I/O with the help of an iSCSI module,which has the advantages of NAS and SAN.Finally,the NASSN can provide higher I/O speed by a high network-attached channel which implements the direct data transfer between the storage device and client.In the experiments,the NASSN has ultra-high-throughput for both of the file I/O requests and the block I/O requests.
文摘A multi-user view file system (MUVFS) and a security scheme are developed to improve the security of the united storage network (USN) that integrates a network attached storage (NAS) and a storage area network (SAN). The MUVFS offers a storage volume view for each authorized user who can access only the data in his own storage volume, the security scheme enables all users to encrypt and decrypt the data of their own storage view at client-side, and the USN server needs only to check the users’ identities and the data’s integrity. Experiments were performed to compare the sequential read, write and read/write rates of NFS+MUVFS+secure_module with those of NFS. The results indicate that the security of the USN is improved greatly with little influence on the system performance when the MUVFS and the security scheme are integrated into it.
文摘This paper presents a solution for optimal business continuity, with storage architecture for enterprise applications, which will ensure zero data loss and quick recovery. The solution makes use of Internet protocol storage area network （IPSAN）, which is used for data management without burdening the application server, as well as mix of synchronous and semi-synchronous replication techniques to replicate data to remote disaster recovery site. We have presented the detailed design of both synchronous and semi-synchronous with case study of using open source database postgres to prove our point for optimal business continuity. The theoretical presentation is also given for the same.
文摘随着互联网技术的快速发展,数据的爆炸式增长,存储系统的软硬件紧耦合设计严重地限制了存储技术的发展,也越来越无法满足移动互联网和大数据时代下对存储系统快速、多变的需求.软件定义网络(storage defined network,SDN)作为一种新的网络架构,更适合下一代数据中心的发展.在SDN思想基础上,提出了一种基于控制中心的新型SAN架构(controller-based SAN,CSN),该架构分离FC交换机的协议控制面和数据面,将FC协议的控制功能和分布式服务功能部署在控制器中,随后详细阐述了该架构的控制器设计、通信机制和整体机制的设计与实现.在CSN基础上,又提出了按需可用带宽优先路由协议.最后,通过实际开发环境验证该架构的可行性.通过实验测试,得出CSN下服务器能够更快地与存储服务器建立连接,并且存储网络具有更高的吞吐量、更快的收敛性、更好的可靠性和可扩展性,此外,还对中心控制器的CPU、内存和带宽进行压力测试.
文摘With the increasing explosively of data in network,more and more people pay attention to the networked storage ,currently the main technology of networked storage is NAS ( Network Attached Storage )and SAN ( Storage Area Network ). They are different ,and they are not competed but complement ,they are used in different occasion.To reduce the TOC (total of cost),people hope to merges the two technology :design a united storage network,it can supply the virtues and overcome the drawbacks of the NAS and SAN. This paper analysis and discuss the topic.
