Storage area network san architecture refers to the logical layout of a san infrastructure. Introduction to storage area networks july 2006 international technical support organization sg24547003. High capacity, high availability, high scalability, ease of configuration, ease of. Fibre channel fc is the predominant architecture on which most san implementations are built. Sure, users could share files over a lan, but you still needed a way to share access to the physical disks in every server. Pdf introductionsan overviewsan technologies and solutionsother storage networking technologiesstandardsstorage networking associations, initiatives. A sans architecture works in a way that makes all storage devices available to all servers on a lan or wan. Information processing capabilities enabled by storage area networks. Each storage unit should connect to both switches, as should each server. What properties a storage area network must have, should have, and may have. Survey on recent technology of storage area network. Networkattached storage nas and storage area networks san networkattached storage nas is a filelevel computer data storage device that is connected to a computer network to provide shared drives or folders. A storage area network san is a high availability device used to interconnect computers and networks to a central repository of data.
Typically, a storage area network is part of the overall network of computing resources for an enterprise. Storage area network seminar report and ppt for cse students. Auspex storage architecture guide is designed to help ceos, cios and network administrators understand these architectures and. Sans typically use a fiber channel fabric topology, which is an infrastructure specifically engineered to manage storage communications. Storage area network san a storage area network san is a specialized, dedicated high speed network joining servers and storage, including disks, disk arrays, tapes, etc.
Nas provides the advantages of server consolidation by eliminating the need for multiple file servers. The need for fulltime data access, as well as the sharing of storage and data by multiple applications, has given rise to a completely new data storage paradigm the storage area network san. Storage area network brocade san architectural brief. The first of these is called colt sanlink and is costeffective between two sites. Because all data storage was located inside each individual server, you had no effective way to efficiently allocate storage space between all the servers. Figure 1 storage area network sans create a method of attaching s torage that is revolutionizing the network because of the improvements in availability and performance. Sans are primarily used to enhance accessibility of storage devices, such as disk arrays and tape libraries, to servers so that the devices appear to the operating system as locallyattached devices. The idea behind storage networks is that the scsi cable is replaced by a network that isinstalled in. Storage area networks seminar report and ppt for cse students. To make sure this path isnt a point of failure, your client should buy two switches for the san network. As stated previously, fibre channel is the predominant architecture upon. Related terms such as storage area network and network attached storage are described in separate entries.
An introduction to storagearea networks and networkattached. Software vendors are rethinking their professionalservices capabilities in order to satiate the evolving customer demand and maintain their margin growth. Summary 1what is san 2basics of san 3architecture of san4basic mechanism of san 3. The network and file system location also defines the storage architecture. E engineering computer science cse sem 8 storage area networks san download wondering how to thank us. Oct 01, 2008 networkattached storage nas and storage area networks san networkattached storage nas is a filelevel computer data storage device that is connected to a computer network to provide shared drives or folders. Storage area network is explained by the storage industry network association snia and they defined it as a network whose main purpose is the exchange of information between computer systems and elements. Storage area network san implementation in simple words san is a highspeed, dedicated network of servers and shared storage devices and provides access to consolidated, block level data storage. Aug 18, 2015 storage area networks10cs765 vtu belagavi, karnataka tuesday, 18 august 2015. Storage area network san installation and configuration.
Networkattached storage nas and storage area networks san. Sg24547000 international technical support organization. Pdf storage area network fundamentals researchgate. As with any distributed storage system, a major design challenge for a storage area network san is to. Seminar pdf report on storage area network san with ppt. Storage area networks, with their ability to offer high data availability, reliability and scalability, are a promising solution for the large scale storage needs of many enterprises. An introduction to storage area networks and network attached storage learn more about fibre channel sans, san switches, nas clusters, nas virtualization and other network storage technologies. Storage area network extension design and operation. There are many network storage technologies available to enable the movement of data storage boxes outside the cpu system box. The need for fulltime data access, as well as the sharing of storage and data by multiple applications, has given rise to a completely new data storage paradigm the.
Key considerations in developing a storage area network design. As with any distributed storage system, a major design challenge for a storage area network san is to provide data integrity and con. The importance of software to storage area networks. It offers more rapid and reliable access than the higherlevel protocols used in. Storage data store is separated from the processors and separated processing. Explore storage area network with free download of seminar report and ppt in pdf and doc format. E engineeringcomputer science csesem 8storage area networks san download. Although storage area networks sans share common components in the form of servers, storage, and interconnect devices, the configuration of a storage network is determined by the application problems it resolves. What is storage area network san storage tutorials. A storage area network san or storage network is a computer network which provides access to consolidated, blocklevel data storage. A local area network, or lan, consists of a computer network at a single site, typically an individual office building. A communication infrastructure and this communication infrastructure furnish physical.
It is alternative to the directly attached targets. In a typical storage area network design, each storage device connects to a switch that then connects to the servers that need to access the data. As more storage devices are added to a san, they too will be accessible from any server in the larger network. Furthermore, storage networks open up new possibilities for data management. It provides storage consolidation through filelevel data access and sharing. Introduction of storage area network linkedin slideshare. For these readers, discussions of basic server and storage concepts should assist in bridging the gap between networking and storage worlds. Storage area network architectures technology white paper. Storage network architecture is the conceptual structure and logical organization of a network whose.
These two technology shifts have produced three mutually coexistent methods for connecting storage to computing platforms. Four generations of sans shares of leading companies in the san market gardner 2004. What is sanstorage area network is a design to transfer data, from serverto clients. Networkattached storage nas and storage area networks. A storage area network for fast, distributed, solid state disks adrian m. Storage area network san topology refers to the arrangement or configuration used by sans. Why information services professionals should be interested in storage networking. A storage area network san is a secure highspeed data transfer network that provides access to consolidated blocklevel storage.
Sans are typically composed of hosts, switches, storage elements, and storage devices that are interconnected using a variety of technologies, topologies, and protocols. How the san is logically created components used data storage and retrieval frameworks devicehost interconnectivity other parameterscomponents essential for a san. Data storage infrastructure october 22, 2001 the san book 3. The common communication and data transfer mechanism for a given deployment is commonly known as the storage fabric. Both these services run on a fibre optic network dedicated to the customer.
Storage area network san is a specialized, highspeed network that provides blocklevel network access to storage. An internet is a network of networks in which routers move data among a multiplicity of networks. Introduction to storage area networks ibm redbooks. Storage area network architectures technology white. A storage area network san is defined as a set of interconnected devices for example, disks and tapes and servers that are connected to a common communication and data transfer infrastructure such as fibre channel.
What is storage area network architecture san architecture. Introduction to storage area networking this chapter describes in general terms the benefits, the challenges, and risks of using a storage area network san. Also explore the seminar topics paper on storage area network with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year computer science engineering or cse students for the year 2015 2016. The requirements for a fullmotion video application differ from those for highavailability online transaction processing oltp. Customizing an implementation to meet your specific needs therefore requires an understanding of your organizations primary business requirements.
Storage area network as a service for cloud computing chapter 7. A lan is very useful for sharing resources, such as data storage and printers. Introduction to storage area network, san ravi kumar khattar, mark s. Ppt storage area network san powerpoint presentation. An introduction to storagearea networks and networkattached storage learn more about fibre channel sans, san switches, nas clusters, nas virtualization and other network storage technologies. Overview the term san designates a new type of storage architecture in which the storage systems are attached to a high speed network dedicated exclusively to storage. Storage performance is enhanced using a fast interface, such as fibre channel fc, that connects storage servers and storage devices through an array of switches and hubs to form a fabric that supports both redundancy and high availability. An san makes a network of storage devices accessible to multiple servers. Area networks san and 3 network attached storage nas to be almost equal. As new storage architecture emanate, the storage area network technique provides a solution to the problem of. Sep 11, 2012 introduction of storage area network 1.
Sticky august 4, 2017 uncategorized kmitit4yr2semsanmaterial. Here storage area network san come into picture which is basically a combination of computers and storage devices connected in a network. Storage area network san installation and configuration guide. To make nas fault tolerant, nas systems usually contain one or more hard disks, often arranged as raids. San devices appear to servers as attached drives, eliminating traditional network bottlenecks. A storage area network san is a specialized, highspeed network that provides blocklevel network access to storage. San solutions are usually connected using a fibre based optical connection with varying configurations in terms of storage capacity and redundancy levels. Nas is a preferred storage solution that enables clients to share files quickly and directly with minimum storage management overhead. Storage area network as a networked highspeed enterprise infrastructure nt windows nt. This edition applies to the products in the ibm storage area networks san portfolio. Storage area network essentials electronic commerce has made traditional data storage methods obsolete.
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