Storage area network san installation and configuration. 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. Networkattached storage nas and storage area networks san. Storage area networks and network attached storage provide networked storage solutions.
Direct attached storage array is now the single point of failure complex environment experts only. Security considerations for storage area networks what is a san. Administrators perspective storage network points of attack threats to storage networks come from many places. To make sure this path isnt a point of failure, your client should buy two switches for the san network. Pdf this chapter identifies characteristics, architectural concepts, technologies, applications, and marketplace of storage area networks sans. 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 san a storage area network san is a specialized, dedicated high speed network joining servers and storage, including disks, disk arrays, tapes, etc. Ethernet media using an io protocol called iscsi is emerging in 2001. Also explore the seminar topics paper on storage area networks 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. Your data flow is only as fast as your network connectivity allows. The remaining h bytes h 3,2,1 are used for the host machine.
The former uses file level storage and the latter uses block level storage. All devices connected arbitrarily using all previous ways to connect each other, resulting in a hybrid structure. 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. To understand the difference between a san and network attached storage nas, the difference between the file system and storage must be made clear. A storage area network san is a dedicated network that provides access to consolidated, block level data storage. 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. What properties a storage area network must have, should have, and may have. System dependent network attached storage nas nas scalability. An san makes a network of storage devices accessible to multiple servers. A nas is a single storage device that operates on data files, while a san is a local network of several devices. San storage devices can include tape libraries and diskbased devices, like raid hardware. To the user, storage area networks appear to be local to the operating system, but they are actually remote. Geographical area country organization, enterprise department host. Storage area network san installation and configuration guide.
Storage area network if you have a more demanding san environment, the dell emc cx400 is a versatile, rackdense midrange 2gb fibre channel storage array offering up to. The fiber channel fc san and internet small computer system interface iscsi san are being deployed by enterprises around the globe. It focuses on the techniques and the technologies that have evolved around slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. San solutions are usually connected using a fibre based optical connection with varying configurations in terms of storage capacity and redundancy levels.
High capacity, high availability, high scalability, ease of configuration, ease of. Storage data store is separated from the processors and separated processing. Sans are primarily used to make storage devices, such as disk arrays, tape libraries and optical jukeboxes, accessible to servers so that the devices appear like locally attached devices to the operating system. Sg24547000 international technical support organization. Ppt san storage area network powerpoint presentation. Mar 31, 2011 a storage area network is a highspeed sub network of shared storage devices. 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. A local area network, or lan, consists of a computer network at a single site, typically an individual office building. The importance of software to storage area networks. San conceptual and design basics vmware esx server can be used in conjunction with a san storage area network, a. This type of wlan is built by attaching an access point to the edge of the wired network and setting up the ap to work in bridging mode. A lan is very useful for sharing resources, such as data storage. Fibre channel is still the most popular san protocol today, although iscsi and fibre.
The storage area network contains the fiber cables. Storage area network fundamentals cisco press networking. A study paper on storage area network problemsolving issues. Customizing an implementation to meet your specific needs therefore requires an understanding of your organizations primary business requirements. Storage area networks provide connectivity to the virtual server using either the fibre channel fc or iscsi protocols. Storage area network often relies on fibre channel topology, which is specifically designed to handle storage communications. As wikipedia, the free encyclopedia 2005 explains it, a storage area network san is a network designed to attach computer storage devices such as disk array controllers and tape libraries to servers. Storage area network simple english wikipedia, the free. As fibre channel provides faster and more reliable access, it is used as basic protocol in san infrastructure. A storage area network is a dedicated, centrally managed, secure information. Everyone likes new toys, and a storage area networks sans are pretty cool.
This can be useful if there is a primary data failure or natural disaster. Sure, users could share files over a lan, but you still needed a way to share access to the physical disks in every server. A sans architecture works in a way that makes all storage devices available to all servers on a lan or wan. Storage area networks seminar report and ppt for cse students. Fibre channel is the highspeed technology and communications protocol to connect those storage and backup devices. Ppt storage area network san powerpoint presentation.
Ibm san solutions support virtualization, hybrid multicloud and big data requirements. 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. It is alternative to the directly attached targets. What is storage area network architecture san architecture. Darkfibrehsswhitepaper122010v01 page 5 of 8 or more sites.
Storage area network jussi murtola sis lt sanyleist eroavaisuudet tallennusmenetelmien v lill topologiat sanverkkolaitteet kuitukanavan arkkitehtuuri. 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. Looking at the pros and cons of using a storage area network. A storage area network san is a high availability device used to interconnect computers and networks to a central repository of data. Storage area network brocade san architectural brief overview although storage networking technologies are commonly available to the entire market, each enterprise or institution is unique. The best place to start when explaining storage area networks is with fibre channel, the original san protocol. The storage data is very secure on the storage area network and cannot be copied or stolen by anyone else. Typically, a storage area network is part of the overall network of computing resources for an enterprise. As with any distributed storage system, a major design challenge for a storage area network san is to provide data integrity and con. San offers centralized storage network, and its speed and efficiency is much more than the bundle of individual servers put togther to make storage network.
Only point to point connections allowed in 10baset repeater regenerates data received from one cable and. A storage area network san is a dedicated highspeed network or subnetwork that interconnects and presents shared pools of storage devices to multiple servers. The possibility of a truly durable, failureproof information system begins to emerge. Storage area network san architecture refers to the logical layout of a san infrastructure. 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. Introduction to storage area network, san ravi kumar khattar, mark s. 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. Also explore the seminar topics paper on storage area networks with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year electronics and telecommunication engineering or ece students for the year 2015 2016. A free powerpoint ppt presentation displayed as a flash slide show on id. To make nas fault tolerant, nas systems usually contain one or more hard disks, often arranged as raids.
Fabric ports reside on switches and allow connection of storage peripherals n port devices l port. Also explore the seminar topics paper on storage area networks with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year electronics and telecommunication engineering or ece students for the year. A san storage area network is a subnetwork of storage devices that are shared with one another over a highspeed network connection. How the san is logically created components used data storage and retrieval frameworks devicehost interconnectivity other parameterscomponents essential for a san. A storage area network san is a high speed network only for storage that is separate from the public lan. Introduction to storage area networks july 2006 international technical support organization sg24547003. This chapter identifies characteristics, architectural concepts, technologies, applications, and marketplace of storage area networks sans. The r first bytes r 1,2,3 correspond to the network address. It provides blocklevel storage that can be accessed by the applications running on any networked servers. Loop ports are used in arbitrated loop configurations to build storage peripheral networks without fc switches. Ppt storage area network powerpoint presentation free.
The topology can be used as a launch point for device and vendor specific user interfaces 26. It is primarily used as the storage device server can access this. Storage area networks seminar report, ppt, pdf for ece students. Sticky august 4, 2017 uncategorized kmitit4yr2semsanmaterial. Introduction to storage technologies and terminology. Storage area networks 10cs765 vtu belagavi, karnataka wednesday, 19 august 2015. The changing of zoning every time is tough because it contains the 16 bits of hexadecimal code in common worldwide names wwns networks. There is another key difference between data storage on a server or nas box, and how data is stored in a san. Each point of attack may be used as a steppingstone for later attacks. Each storage unit should connect to both switches, as should each server. Today, most sans use fibre channel media, providing an anytoany connection for processors and storage on that network. Snapshots are used as backup sources for the overall backup procedures defined for the storage array.
Sans are typically composed of hosts, switches, storage elements, and storage devices that are interconnected using a variety of technologies, topologies, and protocols. Storage area networks seminar report and ppt for cse. Data communication and computer network 2 all devices connected together with a single device, creating starlike structure. Storage area network the storage area network is made up of hbas, storage networks, storage processors, and disks storage networks are a separate component from the storage array. This, however, shouldnt be the main reason to install a san. What is storage area network san storage tutorials. What is a storage area network, and which benefits does it. Some wireless lans extend an existing wired network. A fibre channel also known as fabric relies on the concept of local area network. It is mainly used to make storage devices, like disk arrays, optical jukeboxes, and tape libraries. Storage area network as a networked highspeed enterprise infrastructure nt windows nt. A storagearea network san is a dedicated highspeed network or subnetwork that interconnects and presents shared pools of storage devices to multiple servers.
Storage area networks seminar report, ppt, pdf for ece. San is a network which is designed to attach computer storage devices such as disk array controllers and tape libraries to servers. 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. A san typically has its own network of storage devices that are generally not accessible through the local area network by other devices. Nspof no single point of failure which can enable customers to have 99. By carrying scsi commands over ip networks, iscsi is used to facilitate data transfers over intranets and to manage storage over long distances. San devices appear to servers as attached drives, eliminating traditional network bottlenecks. Apr 18, 2002 storage area network fundamentals presents the benefits of storage area networks sans to corporate users and enables them to deploy san technology effectively. What is san storage area network is a design to transfer data, from server to clients. Short for storage area network, san is a highspeed network of storage devices that also connects those storage devices with servers. Key considerations in developing a storage area network design. Fibre channel san storage overview tutorial video youtube. A storage area network san is a specialized, highspeed network that provides blocklevel network access to storage. Information processing capabilities enabled by storage area networks.
Generally, this network storage is part of the overall network of computing resources for both government and education organizations. As more storage devices are added to a san, they too will be accessible from any server in the larger network. A storage area network san is a computing solution for accessing and storing data. 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 or storage network is a computer network which provides access to consolidated, blocklevel data storage. The storage area network combines an array of storage devices and enables faster communication. There can be a remote copy of the storage data kept separately using the storage area network. A storage area network, or san, is a highspeed sub network that connects many types of storage devices with data servers for a large network of users. In addition to storing data, sans allow for the automatic backup of data, and the monitoring of the storage as well as the. A storage area network san is a secure highspeed data transfer network that provides access to consolidated blocklevel storage. Download cbse notes, neet notes, engineering notes, mba notes and a lot more from our website and app.
Storage area networks sans are sometimes referred to as network behind the servers. Why information services professionals should be interested in storage networking. 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. Clients communicate with the access point through the wireless link and can reach the ethernet network through the ap bridge connection.
Storage area network san articles, overviews and web. Storage area networks dark fibre, sanlink and high speed service solutions. Sans support disk mirroring, backup and restore, archival and. Because all data storage was located inside each individual server, you had no effective way to efficiently allocate storage space between all the servers.
Risks and threats to storage area networks help net security. Storage area network brocade san architectural brief. A san is, at its simplest, a dedicated network for data storage. The common communication and data transfer mechanism for a given deployment is commonly known as the storage fabric. Introduction to storage area networking this chapter describes in general terms the benefits, the challenges, and risks of using a storage area network san. To do the wrong plan is the causes the problem in storage area network. Explore storage area networks with free download of seminar report and ppt in pdf and doc format.
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