Network Storage Technologies (Network Storage Technologies) implements data transmission based on standard network protocols and provides files for computers with various operating systems such as Windows
/ Linux / Mac OS on the network *** sharing and data backup; supports 24-hour uninterruptible power supply BT, FTP, HTTP, eMule and NZB download; as a multimedia center, provides multimedia file streaming services for SONY PlayStation3/Microsoft Xbox/Apple iPad iPhone/Android mobile phones and tablets; for Build a personal website to provide HTTP/FTP services; support Apple iMac/Mac mini/Mac Pro/MacBook/Mac Air (including black Apple) TimeMachine backup and restore. . Network storage structures are roughly divided into three types: direct-attached storage (DAS: Direct Attached Storage), network-attached storage (NAS: Network Attached Storage), and storage network (SAN: Storage Area Network). Advantages of NAS
NAS is a mechanism for data storage using special devices directly connected to network media. Because these devices are assigned IP addresses, clients can access them through the server acting as a data gateway, and in some cases, clients can even access these devices directly without any intermediary.
First, NAS is suitable for users who need to transfer file data to multiple client computers through the network. NAS devices work well in environments where data must be transferred over long distances.
Second, NAS devices are very easy to deploy. NAS hosts, clients and other devices can be widely distributed throughout the enterprise's network environment. NAS can provide reliable file-level data consolidation because file locking is handled by the device itself.
Third, NAS is used in efficient file sharing tasks, such as NFS in UNIX and CIFS in Windows NT, where network-based file-level locking provides advanced concurrent access protection. .
Main applications of NAS
Introduction: NAS can meet the needs of small and medium-sized enterprises that want to reduce storage costs but cannot afford the high price of SAN, and has a very good performance-price ratio. Which industries can use NAS devices? First of all, it depends on whether the core business of this unit is based on some kind of information system, which has high requirements for data security; secondly, it depends on whether the information system has or will have a large amount of data that needs to be saved, and the level of data management. The requirements are high; finally, you can also determine whether there are heterogeneous platforms in the network or whether they will be used in the future. If the answer to any of the above questions is yes, then it is necessary to consider using a NAS device.
1. Office automation NAS solution
Office automation system (OA) is the focus of the information construction of government agencies and enterprises. The management and operation of modern enterprises and institutions are inseparable from computers and local area networks. When enterprises use the network for daily office management and operations, they will generate daily office documents, drawing files, ERP and other enterprise business data as well as many personal documents. . Traditional internal LANs generally do not have file servers. The above data are generally stored on employees' computers and servers, and there is no suitable device for backup and storage applications. Since the security level of personal computers is very low and employees' security awareness is uneven, important data can easily be stolen, maliciously destroyed, or lost due to hard drive failure.
From the analysis of data storage in enterprises and institutions, it can be seen that in order for the data within the entire enterprise and institution to be uniformly managed and safely applied, there must be a secure, cost-effective, easy to use, Manage simple physical media to store and back up corporate data.
The NAS network storage server is a specially designed file storage and backup server. It can manage the data in the network reasonably, effectively and securely, and can be used as a backup device to automatically back up databases and other application data to the NAS at all times. superior.
2. Tax NAS solution
What the tax industry needs is a comprehensive system that integrates business, information, and decision support. The industry business system is mainly a tax collection and management information system, as well as tax business information, general business information, etc. The entire system combines administrative office information, auxiliary decision-making information and business systems to form a general comprehensive system platform, thus forming a complete, integrated and integrated tax business management system.
Business data, daily office documents and data email systems in the tax industry are very important. Once the data is lost, it will cause trouble in daily work and the tax work of the entire region. Ensuring the safe operation and application of the entire data has become a practical problem that must be solved in the tax industry. The solution to this problem is to store or back up these data in a safe, fast, and convenient application environment to ensure the safe operation of tax industry data.
In order to reasonably solve the problem of data backup and storage of business data, a NAS network storage server can be used to store and back up business data and daily office data. In the business host, the information in the database is directly backed up to the NAS through the data incremental backup function. Together with the business information within the LAN and the staff's daily office documents or CD-based data, all can be stored on the NAS server so that the staff can use and browse these data at any time. After using NAS, administrators can effectively and reasonably arrange and manage their internal data, separate data files from other network machines, realize decentralized storage of data, and uniformly manage the data environment system.
3. Advertising NAS solution
The advertising design industry is a comprehensive service industry integrating market research, marketing strategy, creative production, design execution, post-production and media release.
The data storage model of many advertising companies is relatively backward, high-cost and inefficient. The main problem is poor data security; the overall data volume is large and the original large amount of old data is difficult to store and manage; there are multiple operating systems Complex platforms and complex equipment make it difficult to fully share and manage stored data, resulting in low efficiency; the resignation of advertising designers results in the innocent loss of design data. Use NAS to store and back up business data in the advertising design industry network to achieve centralized storage, backup, analysis and sharing of data. Based on the different requirements of design and research units for different data, make full use of existing data to rationally construct advertising Design industry data storage platform, thereby increasing the transmission speed of information materials, saving time and improving work efficiency.
4. Educational NAS solution
Since the "school-to-school connection" project was proposed, each school is actively building its own campus network so that it can promptly adapt to the development of the information age in the future. . As the "school-to-school connectivity" project is gradually put into place, "resource connectivity" has become the focus of the next step in informatization construction, which is specifically reflected in the fact that schools need a large amount of resource information to meet the needs of students and teachers. With the continuous increase of data resources on campus, the physical media for storing data needs to have large storage space and security, and must have a very fast transmission rate to ensure the security and rapid access of the entire data.
After 2012, the construction process of campus network has been focused on the construction of network systems, and a large number of advanced equipment have been equipped on the network. However, the teaching application resources on the network are relatively scarce. The original storage model will show many disadvantages when adding teaching resources: Since all educational resources in traditional network applications in schools are stored on one server, the cost of servers with high performance and high scalability is high; access to teaching resources Services will compete with application services for system resources, causing a significant drop in system service efficiency; system failures on the application server will directly affect the security and availability of resource data, causing inconvenience to the school's teaching work.
To address these problems, NAS devices can be introduced to achieve centralized storage and backup.
(1).NAS provides an efficient and low-cost resource application system.
Since NAS itself is a set of independent network servers, it can be flexibly placed on any network segment of the campus network, which improves the efficiency and security of resource information services. It also has good scalability and low cost.
(2). Provide flexible personal disk space services. NAS can create a personal disk space for each student user, making it easier for teachers and students to find and modify the data they create.
(3). Provide an environment for online data backup. NAS supports external tape drives, which can effectively transfer data from the server to external tape drives to ensure data security and fast backup.
(4). Effectively protect resource data. NAS has an automatic logging function that automatically records access information of all users. The embedded operation management system can ensure that the system never crashes, ensures continuous resource services, and effectively protects the security of resource data.
5. Medical data storage NAS solution
As a medical service institution in society, the management of patient case files is very important. Films based on CT and X-rays must be converted into digital information through a film digitizer and stored for easy retrieval in the future. The amount of data in these films is very large and very important. The safe storage of these films, quick access to management data and information, and effective utilization are important factors in improving work efficiency, and are also key issues in hospital informatization construction. According to a survey, the amount of data in a hospital per year is nearly 400GB. Computer storage alone cannot handle such a large amount of data. Some hospitals will use burners to burn past data pictures onto CDs for storage, but this Storage solutions are time-consuming and inefficient. Hospitals need a physical medium with large capacity, high security, convenient management, and fast data query to store and manage these data safely and effectively. Using NAS solutions, these digital pictures in the hospital's radiology department can be stored and managed safely, conveniently, and effectively, thereby shortening data storage and search time and improving work efficiency.
6. Manufacturing NAS solution
For the manufacturing industry, various market data, customer data, transaction history data, and comprehensive social data are all vital assets to the company. , is the lifeblood of enterprise operation. On the basis of the electronicization of enterprise data, protecting the company's key data and making reasonable use of it has become a key factor in the success of the enterprise. Therefore, various data in the manufacturing industry should be centrally stored, managed and backed up, and an enterprise data storage platform should be reasonably constructed according to the different requirements of enterprises for different data. It is more suitable to use NAS storage method, which can realize centralized storage, backup, analysis and sharing of data, and make full use of existing data on this basis to adapt to market demand and improve its competitiveness.
To sum up, in terms of data management, NAS has great advantages, which can be fully reflected in certain network environments with rapid data expansion, high data security requirements, and heterogeneous platform applications. its value. In addition, NAS has an extremely high performance-price ratio and is widely suitable for various application environments from small and medium-sized enterprises to large and medium-sized enterprises.
7. NAS photo studio storage solution
NAS data protection storage solution provides effective protection for data. It can delete and compress duplicate data to optimize storage space. The maximum effective Save 80% of storage space, and effectively protect the hard drive through NAS's unique RAID mechanism. NAS supports multi-computer and terminal device sharing, making it easy to use regardless of access. Setting different usage permissions can facilitate users to view and prevent data loss; it is cost-effective. The photo studio is equipped with TerraMaster F4-NAS enhanced version of NAS storage, plus four 4T enterprise-class hard drives. The total price of a set is It costs less than 10,000 yuan, which is less than one-tenth of the cost of server storage. It is safe, convenient, affordable and efficient. A SAN is a network in which storage devices are connected to each other and to a server or server farm. The servers in it serve as access points to the SAN. In some configurations, the SAN is also connected to the network. Special switches are used as connecting devices in a SAN. They look a lot like regular Ethernet switches and are the connectivity points in the SAN. SAN makes it possible to communicate with each other on their respective networks and brings many advantages.
Related technologies and protocols used in network storage communication include SCSI, RAID, iSCSI and Fiber Channel. SCSI has long supported high-speed, reliable data storage. RAID (Redundant Array of Independent Disks) refers to a set of standards that provide improved performance and/or disk fault tolerance. Fiber Channel is a technology that provides interconnection between storage devices and supports high-speed communication (which can reach 10Gbps in the future). Fiber Channel also allows devices to be connected to each other over greater distances than traditional storage technologies such as SCSI. iSCSI technology supports bidirectional data transmission between storage devices through IP networks. Its essence is to serialize the data in the SCSI connection. With iSCSI, network storage can be applied anywhere an IP is included. As the main element of the Internet, IP is almost everywhere.