Explore storage area network with free download of seminar report and ppt in pdf and doc format. Smb2 has the ability to combine multiple actions into a. 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. It is generally used to connect all the storage resources connected to various servers. An introduction to storagearea networks and network. As soon as you join two switches together, you merge the two fabrics into a. Combining the more conservative outlook of storage with the more dynamic. You cannot merge myisam tables in which the columns are listed in a different order, do not have exactly the same columns, or have the indexes in different order. Survey on recent technology of storage area network. What is storage area network, function of use snabay. A complete guide to understanding and implementing sans richard barker. Ethernet media using an io protocol called iscsi is. Storage area network as a service for cloud computing chapter 7. Jun 12, 2012 in this article, i have explained that there are some major differences between storage area networks san and network attached storage nas.
Storage area network seminar report and ppt for cse students. These servers provide the computational power, processing and other resources to the enduser terminal which is typically a desktop computer. San solutions are usually connected using a fibre based optical connection with varying configurations in terms of storage capacity and redundancy levels. Introduction to storage area networking this chapter describes in general terms the benefits, the challenges, and risks of using a storage area network san. This edition applies to the products in the ibm storage area networks san portfolio. Fibre channel is the highspeed technology and communications protocol to connect those storage and backup devices. Introduction to storage area network, san ravi kumar khattar, mark s.
To understand the difference between a san and network attached storage nas, the difference between the file system and storage must be made clear. What is san storage area network is a design to transfer data, from server to clients. A storage appliance which will provide the storage on the network. A storage area network san is a secure highspeed data transfer network that provides access to consolidated blocklevel storage. It is a broad process that ensures that the san infrastructure operates securely and is protected from any vulnerabilities. Identical means that all tables have identical column and index information. We have the servers, which are not directly accessed by the enduser. This redbook is written for people marketing, planning for, or implementing storage area networks, such as ibm system engineers, ibm business partners, system administrators, system programmers, storage. At first, sans were expensive and proprietary, but.
Basics and application of fibre channel san, nas, iscsi, infiniband and fcoe, second edition. Why information services professionals should be interested in storage networking. It is alternative to the directly attached targets. Storage area networks seminar report and ppt for cse.
Storage area network configuration oracle zfs storage. 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. 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. Furthermore the authors describe the use of these techniques and how they. Introduction to storage area networks ibm redbooks. Figure 5 gives an example of a typical san network. Pdf this chapter identifies characteristics, architectural concepts, technologies. Now, these multiple servers may have their own storage devices or they may share a pool of storage. Seminar pdf report on storage area network san with ppt. A san solution is a collection of storage disk drives which run on a lan or a wan network.
Storage area network san happens to be a cool solution for many enterprise it storage needs, as it helps in consolidating all the business data into one single storage appliance. 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. Storage networking is very similar to other kinds of it networking. Storage networks explained covers the fundaments, techniques and functions of storage networks such as disk subsystems, fibre channel san, internet scsi iscsi, fibre channel over ethernet fcoe, network attached storage nas, file systems, and storage virtualization. A storage area network san or storage network is a computer network which provides access to consolidated, blocklevel data storage. As more storage devices are added to a san, they too will be accessible from any server in the larger network.
Cabling is the physical medium used to interconnect every san device. Ethernet media using an io protocol called iscsi is emerging in 2001. In a network, various devices and resources are shared. Just as you can connect multiple pcs and servers into a local area network lan or a wide area network wan, you can connect multiple storage arrays into a storage area network san. Sans allow applications that move data to perform better, for example, by having. San is a much more complicated and expensive technology that provides huge quantities of data storage for large networks. A client which will access the storage on the network. This definition explains the meaning of storage area network, also known as san. Understanding storage area networks p having a separate ethernet for the private metadata network, though not absolutely required, is highly recommended, and the separation of network traffic between the san and a public network could greatly enhance the performance of the san in highbandwidth environments. To the user, storage area networks appear to be local to the operating system, but they are actually remote to understand the difference between a san and network attached storage nas, the difference between the file system and storage must be made clear the file system is the interface that allows the. Sep 11, 2012 introduction of storage area network 1. To the user, storage area networks appear to be local to the operating system, but they are actually remote. What properties a storage area network must have, should have, and may have.
A san is a dedicated network that is separate from lans and wans. A typical entrylevel nas device is the dell powervault nx300. Summary 1what is san 2basics of san 3architecture of san4basic mechanism of san 3. The first of these is called colt sanlink and is costeffective between two sites. The purpose of a storage area network is to allow all designated users on the network to access multiple storage devices, not only the storage devices installed in their computer. 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. San storage area network an array of disk drives in a selfcontained unit. This device is a selfcontained file server built into a small rackmount chassis. 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. File systems form an intermediate layer between blockoriented hard disks and applica tions, with a volume manager often being used between the. A san is a collection of storage and backup devices connected together through a network that is totally separated from other servers via a switch. Understanding storage area networks sans determining whether a san is right for you looking at san layers and protocols discovering which operating systems benefit from sans discovering which application can use or require sans this chapter is dedicated to helping you get a handle on what a storage area network san is, the. A san storage area network is a subnetwork of storage devices that are shared with one another over a highspeed network connection. Because of this unfamiliarity, we explain the basic concepts of the networking world that.
A communication infrastructure and this communication infrastructure furnish physical. Storage area network san security refers to the collective measures, processes, tools and technologies that enable the securing of a san infrastructure. In this new backup approach, backedup data are removed. Storage area network san offers simplified storage management, scalability, flexibility, availability, and improved data access, movement, and backup. The importance of software to storage area networks. Introduction to storage area networks july 2006 international technical support organization sg24547003.
Another important feature that san has to offer is that it can combine different servers. Typically, a storage area network is part of the overall network of computing resources for an enterprise. A storage area network is a dedicated highperformance network or subnetwork dedicated to storage that is independent of an organizations common user network. San devices appear to servers as attached drives, eliminating traditional network bottlenecks. Sg24547000 international technical support organization. Using esx server together with a san provides extra storage for. Organizations can combine many switches to build large san fabrics that. Storage area network san articles, overviews and web. Both these services run on a fibre optic network dedicated to the customer.
What is storage area network san in simple words san is a highspeed, dedicated network of servers and shared storage devices and provides access to consolidated, block level data storage. 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. Introduction to storage area networks semantic scholar. The complete reference robert spalding, tata mcgraw hill, 2003. Detail explanation of san storage architecture what is san and how san storage works duration. Mar 31, 2011 a storage area network is a highspeed sub network of shared storage devices. A storage area network is typically assembled using three principle components. Information processing capabilities enabled by storage area networks. It interconnects pools of disk or solidstate storage and shares it to multiple servers so each one can access data as if it was directly attached. A san moves storage resources off the common user network and reorganizes them into an independent, highperformance network. Due to the highlevels of fault tolerance built into a storage area network, sans are usually the. In part 2 of this series, i will begin discussing the hardware that is used in a san.
The common communication and data transfer mechanism for a given deployment is commonly known as the storage fabric. Storage area network simple english wikipedia, the free. What is storage area network san storage tutorials. A sans architecture works in a way that makes all storage devices available to all servers on a lan or wan. A storage area network san is a computing solution for accessing and storing data. Storage area networks niharika kothari april 24, 2003.
Storage area network architectures technology white. It is a broad process that ensures that the san infrastructure operates securely and is. It is primarily used as the storage device server can access this. A storage area network san is a highspeed specialpurpose network or sub network that interconnects different kinds of data storage devices with associated data servers on behalf of a larger network of users.
A san typically has its own network of storage devices that are generally not accessible through the local area network by other devices. A san typically is a dedicated network of storage devices not. The san configuration page lets you connect your appliance to your san storage area network. Advantages of using a storage area network dynamic network. It consists of a collection of san hardware and san software. A list of references on storage area networks and fiber channel. Storage area networks sans established their role as the heart of enterpriselevel primary storage in the early 2000s. An san makes a network of storage devices accessible to multiple servers. What is storage area network security san security. Storage area network essentials electronic commerce has made traditional data storage methods obsolete. Today, most sans use fibre channel media, providing an anytoany connection for processors and storage on that network. 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.
Storagearea networks sans established their role as the heart of enterpriselevel primary storage in the early 2000s. Sans are typically composed of hosts, switches, storage elements, and storage devices that are interconnected using a variety of technologies, topologies, and protocols. What is sanstorage area network is a design to transfer data, from serverto clients. The diagram below shows the framing levels of the fibre. Jul 03, 2015 detail explanation of san storage architecture what is san and how san storage works duration. Compared to managing disks attached to each server, sans improve system administration. In large enterprises, sans serve as pools of storage for the servers in the network. San vs nas difference between a storage area network and.
Introduction of storage area network linkedin slideshare. According to this definition, an ethernetbased network whose primary purpose is to provide access to storage elements would be considered a san. Sticky august 4, 2017 uncategorized kmitit4yr2semsanmaterial. Advantages of using a storage area network dynamic.
San vs nas difference between a storage area network and network attached storage submitted by sarath pillai on sat, 04192014 20. There are many network storage technologies available to enable the movement of data storage boxes outside the cpu system box. San and nas use open industrystandard network protocols to provide storage facility. A storage area network san is a high availability device used to interconnect computers and networks to a central repository of data. Prior to joining pmc, he has worked at princeton university on vliw video signal processor architecture. In simple words, a san is a storage network, which offers large amounts of. A storage area network san is a specialized, highspeed network that provides blocklevel network access to storage. At first, sans were expensive and proprietary, but since the 2010s, sans. A storage area network san is a dedicated highspeed network or subnetwork that interconnects and presents shared pools of storage devices to multiple servers. Designing and implementing a mass storage system the holy grail of data storage management, pearson education storage networks explained.
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