To improve I/O speed and system performance of network storage devices, a special storage server that is an iSCSI-based network-attached storage server (iSCSI-based network-attached storage server, for short iNAS) is ...To improve I/O speed and system performance of network storage devices, a special storage server that is an iSCSI-based network-attached storage server (iSCSI-based network-attached storage server, for short iNAS) is designed. The iNAS can provide both the file I/O and the block I/O services by an iSCSI module, and it converges with the NAS and the SAN (storage area network). The iNAS improves the I/O speed by the direct data access (zero copy) between the RAID (redundant array of inexpensive disks) controller and the user-level memory. The iNAS integrates the multi-RAID for a single storage pool by a multi-stage stripping device driver, and it implements the storage virtualization. In the experiments, the iNAS has ultra-high-throughput for both the file I/O requests and the block I/O requests.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
The popularity of e-commerce sector in Poland is increasing each year. Thus, it determines the need for market observation and analysis of the changes taking place. This article aims to examine if the dynamics of the ...The popularity of e-commerce sector in Poland is increasing each year. Thus, it determines the need for market observation and analysis of the changes taking place. This article aims to examine if the dynamics of the development of e-commerce in Poland significantly affects the development of the offer of modem warehouse space. Based on available market sector reports the article identifies major factors which stimulate storage management on the one hand, but are certain challenges on the other hand. The article is undoubtedly a good starting point for further tests to examine the model on a sample of entities operating in the industry. E-commerce industry in Poland is growing very rapidly. Retail chains are introducing more and more multi-channel solutions, numerous start-ups are being created, there is increasing interest in internet shopping, which, undoubtedly, enhances the development of the sector. Poland online sales represents only a small percentage in total retail sales and has a lot of catching up to do compared to the mature European markets. However, the situation is clearly more dynamic and the differences are decreasing. More and more companies are operating in the industry, which translates into demand for modem warehouse space. The purpose of this article is to present the dynamic changes taking place in the Polish market, closely linked to the development of e-commerce and an attempt to define their role in shaping the offer of modem warehouse space. E-commerce plays a key role in building global supply chains, in which storage can significantly affect their efficiency and agility. The article highlights the changes in the market warehouse in their many aspects, however, it clearly emphasizes the impact of e-commerce sector. E-commerce is revolutionizing supply chains by rebuilding existing links, such as marketing, payment system, distribution, inventory management, and storage. What important, therefore, is the research problem presented in the article, because it presents current trends and market changes.展开更多
文摘To improve I/O speed and system performance of network storage devices, a special storage server that is an iSCSI-based network-attached storage server (iSCSI-based network-attached storage server, for short iNAS) is designed. The iNAS can provide both the file I/O and the block I/O services by an iSCSI module, and it converges with the NAS and the SAN (storage area network). The iNAS improves the I/O speed by the direct data access (zero copy) between the RAID (redundant array of inexpensive disks) controller and the user-level memory. The iNAS integrates the multi-RAID for a single storage pool by a multi-stage stripping device driver, and it implements the storage virtualization. In the experiments, the iNAS has ultra-high-throughput for both the file I/O requests and the block I/O requests.
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The popularity of e-commerce sector in Poland is increasing each year. Thus, it determines the need for market observation and analysis of the changes taking place. This article aims to examine if the dynamics of the development of e-commerce in Poland significantly affects the development of the offer of modem warehouse space. Based on available market sector reports the article identifies major factors which stimulate storage management on the one hand, but are certain challenges on the other hand. The article is undoubtedly a good starting point for further tests to examine the model on a sample of entities operating in the industry. E-commerce industry in Poland is growing very rapidly. Retail chains are introducing more and more multi-channel solutions, numerous start-ups are being created, there is increasing interest in internet shopping, which, undoubtedly, enhances the development of the sector. Poland online sales represents only a small percentage in total retail sales and has a lot of catching up to do compared to the mature European markets. However, the situation is clearly more dynamic and the differences are decreasing. More and more companies are operating in the industry, which translates into demand for modem warehouse space. The purpose of this article is to present the dynamic changes taking place in the Polish market, closely linked to the development of e-commerce and an attempt to define their role in shaping the offer of modem warehouse space. E-commerce plays a key role in building global supply chains, in which storage can significantly affect their efficiency and agility. The article highlights the changes in the market warehouse in their many aspects, however, it clearly emphasizes the impact of e-commerce sector. E-commerce is revolutionizing supply chains by rebuilding existing links, such as marketing, payment system, distribution, inventory management, and storage. What important, therefore, is the research problem presented in the article, because it presents current trends and market changes.
