Fibre channel is primarily used to connect computer data storage to servers in storage area networks san in. Wide area networks are often established with leased telecommunication circuits business, as well as education and government entities use wide area networks to relay data to staff, students, clients, buyers and suppliers from various locations. San devices appear to servers as attached drives, eliminating traditional network bottlenecks. With current estimates of the amount of data to be managed and made available increasing at 60% each year, this outlook is where a storage area network san enters the arena. It is primarily used as the storage device server can access this. Fibre channel to link peripheral devices such as disk storage and tape libraries san vs. Sticky august 4, 2017 uncategorized kmitit4yr2semsanmaterial.
A san is a complete architecture that groups together the following elements. This article will give you knowledge about basics of storage area network san, so that you can know what are advantage and need of san. Zoning adds another level of security to a storage area network because it controls access to a san from a host device. Also, the increasing complexity of managing large numbers of storage devices and vast amounts of data is driving greater business value into software and services. Typically, a storage area network is part of the overall network of computing resources for an enterprise. This edition applies to the products in the ibm storage area networks san. Introduction to storage area network, san ibm redbook. The storage devices in the storage area network together form the storage layer. What is storage area network san storage tutorials. Designing storage area networks guide books acm digital library. A wide area network wan is a telecommunications network that extends over a large geographical area for the primary purpose of computer networking. This is an introduction to storage area network presentation that i did for herzing university in atlanta, ga. Only devices that are authorized to access a particular storage resource are allowed to do so. Sg24547000 international technical support organization.
This is the same way in which scsi hard disk drives work if they were installed directly in the server. San white papers san architecture, storage network. Each san port can support a particular communication speed and a fibre channel switch may offer 1 gb, 2 gb, or. In fact, if our sever wants to use san storage, it uses scsi type commands, just as it would use them as if. 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 area network as a service for cloud computing chapter 7. Introduction to storage area networks july 2006 international technical support organization sg24547003. They can be uniquely identified in the storage area network using this number. In this study guide, you will learn how the local area networks can be established using these network system.
All the storage devices contain a number known as the logical unit number lun. Introduction to vmware infrastructure 12 vmware, inc. A san, or storage area network, is a dedicated network that is separate from. Storage area network san is a separate network that provides blocklevel storage as compared to the nas that provides filelevel storage. Storage area network san management reliability and uptime can be enhanced by incorporating good architecture. It is alternative to the directly attached targets. Detail explanation of san storage architecture what is san and how san storage works duration. This book was produced by a team of specialists from around the world.
Furthermore, storage networks open up new possibilities for data management. The volume and value of enterprise data have been grow. Ibm redbooks, introduction to storage area network, san. Introduction to storage area network, san ravi kumar khattar, mark s. Storage area network essentials electronic commerce has made traditional data storage methods obsolete.
Tonex san boot camp is an intensive learning experience that cover the essential elements of san, storage area networking. Definition of san 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. They can be uniquely identified in the storage area network. A storage area network san is a secure highspeed data transfer network that provides access to consolidated blocklevel storage. Storage area network san installation and configuration. A san presents storage devices to a host such that the storage appears to be locally attached. Your data flow is only as fast as your network connectivity allows. Network storage elements hard drives a san s architecture works in a way that makes all storage. A practical guide to san and nas security is an indispensable resource for every storage and security professional, and for anyone responsible for it infrastructure, from architects and network designers to administrators. Many users of raid system cannot use the capacity effectively because it has to be attached to a concept called storage area network san. Also, the increasing complexity of managing a large numbers of storage devices and vast amounts of data is driving greater business value into software and services. A nas is a single storage device that operates on data files, while a san is a local network. Storage area networks for dummies 2, poelker, christopher, nikitin. With storage area networks san, we typically see this solution used with mediumtolarge size businesses, primarily due to the larger initial investment.
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. Ccde introduction to storage networking and design. Fibre channel fc is a highspeed data transfer protocol commonly running at 1, 2, 4, 8, 16, 32, and 128 gigabit per second rates providing inorder, lossless delivery of raw block data. The idea behind storage networks is that the scsi cable is replaced by a network that isinstalled in. With current estimates of the amount of data to be managed and made available increasing at 60 percent each year, this outlook is where a storage area network san enters the arena. Introduction to storage area networks ibm redbooks. When considering the different storage options, you need to keep. Zoning is a method of arranging storage area network devices into logical groups over the physical configuration of the fabric. All the servers that provide access to the storage area network collectively constitute the host layer. Introduction to storage area network san jie feng winter 2001. This speeds up the backup process and eliminates the need to use server cpu. Internally scsi and raid will commonly be implemented. San training storage area networking training tonex. They offer a high speed of network for storage the biggest producers are emc corporation, dell.
Introduction to storage area networking this chapter describes in general terms the benefits, the challenges, and risks of using a storage area network san. A fibre channel broadband network or scsi dedicated interconnection equipment switches, bridges, etc. Storage area networks and network attached storage provide networked storage solutions. Network attached storage vs storage area network duration. Storage area network fundamentals presents the benefits of storage area networks sans to corporate users and enables them to deploy san technology effectively. San storage area network is a highspeed network of storage devices that. Ibm san solutions support virtualization, hybrid multicloud and big data requirements. These are generally devices that are used for big businesses for backup purposes. 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. Introduction to storage area network charles sargurudoss. What is sanstorage area network is a design to transfer data, from serverto clients.
The inside scoop on a leadingedge data storage technology. The rapid growth of ecommerce and the need to have all kinds of applications operating at top speed at the same time, all on a 247 basis while connected to the internet, is overwhelming traditional data storage methods. What is san storage area network is a design to transfer data, from server to clients. To get a grasp of storage area network basics, download this free essential guide to san implementation for the latest tips and best practices, and find out more about future trends. Introduction to san a san storage area network is a complete storage network. If you know you need fiber channel this book has some utility, but as an. Network attached storage nas enables the sharing of storage through the network and protocols such as nfs and cifs. Introduction to storage area network san utilize windows. Introduction the trend of migrating large amounts of digital data to storage technologies such as storage area networks sans, network attached storage nas, and iscsi are increasing dramatically. Nas dedicated fibre channel network for storage more efficient protocol higher availability reduce traffic conflict longer distance up to 10 km fibre channel provides high. Designed as an introduction to sans, storage area network fundamentals develops an understanding of san basics and shows how to plan, implement, and manage a san. 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 administrators, and other technical support and operations managers and staff. Physical topology of vi datacenter as figure 2 shows, a typical vmware infrastructure datacenter consists of basic physical building blocks such as x86 computing servers, storage networks and arrays, ip networks, a. Introduction to storage area networks april 2005 international technical support organization sg24547002.
An introduction to storagearea networks and network attached storage learn more about fibre channel sans, san switches, nas clusters, nas virtualization and other network storage technologies. Summary 1what is san 2basics of san 3architecture of san4basic mechanism of san 3. Information storage and management ism is the only course of its kind to fill the knowledge. A storage area network san or storage network is a computer network which provides access to consolidated, blocklevel data storage. An san makes a network of storage devices accessible to multiple servers. Youve invested heavily in securing your applications, operating systems, and network infrastructure. At a thin 202 pages, that book was the first to provide a brief overview of storage area network san technology and was widely adopted as an introductory and training text for both vendors and.
Storage area networks sans are entities in a network architecture that provide large amount of access to storage. Front cover introduction to storage e area networks. A san typically is a dedicated network of storage devices not. The types of backup can vary on the size of the business, budget and the data importance. San training boot camp is ideal for busy professionals who want to stay current at storage field but have limited time to be away from the office.
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