A storagearea network san is a dedicated highspeed network or subnetwork that interconnects and presents shared pools of storage devices to multiple servers. An san makes a network of storage devices accessible to multiple servers. I also look at how sans meet the network storage needs of todays organizations and answer the question, could a san be right for you. Building a solid foundation for enterprise applications as your data assets grow, a carefully considered san design can help close the gap between the sheer quantity of storage data and the amount that is adequately protected. This edition applies to the products in the ibm storage area networks san. The snia is a nonprofit global organization dedicated to developing standards and education programs to advance storage and information technology. In other words, bc considerations based on risk assessment and its impact on the business can be considered one of the primary drivers for many businesses to adapt network technologies and design principles to meet their desired goals 5. Storage centric it architecture and its advantages. 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. Heng liao is a technical advisor in the product research group and oversees ics for enterprise. San solutions are usually connected using a fibre based optical connection with varying configurations in terms of storage capacity and redundancy levels.
In early installations, the entire san was located within a building or campus. The bursty nature of ip storage networking flows cannot be overlooked. 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. A san typically is a dedicated network of storage devices not. Storage area network as a networked highspeed enterprise infrastructure. The future of enterprise network architecture deloitte us. Auspex storage architecture guide more cost effective and high performance sans based on the standard gige technology esans become available over the next few years. Seminar pdf report on storage area network san with ppt. 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. Fibre channel fc is the predominant architecture on which most san. The storage area network combines an array of storage devices and enables faster communication. A san, or storage area network, is a dedicated network that is separate from lans. Nas is a file based storage architecture with resources attached directly to the lan. Pdf storage area network architecture to support the.
This is where a storage area network san enters the arena. Storage network architecture is the conceptual structure and logical organization of a network whose. Storage virtualization allows us to harness a wide range of storage facilities and represent them under a single logical file system. Sg24547000 international technical support organization. Ibm san solutions support virtualization, hybrid multicloud and big data requirements. If youre looking for a free download links of distributed storage networks. Stay up to date on snia announcements, programs, technology news, events, education, and more. Storage area network brocade san architectural brief. Ppt storage area network san powerpoint presentation. A communication infrastructure and this communication infrastructure. Sans also enable new network architectures where multiple hosts access multiple storage.
Introduction to storage area networks july 2006 international technical support organization sg24547003. A storage area network san is a dedicated network that provides access to. Storage virtualization an overview sciencedirect topics. Architecture, protocols and management pdf, epub, docx and torrent then this site is not for you. Pdf this chapter identifies characteristics, architectural concepts, technologies, applications, and marketplace of. Ethernet media using an io protocol called iscsi is. There is another key difference between data storage on a server or nas box, and how data is stored in a san. Networkattached storage nas is a filelevel storage architecture that makes stored data more accessible to networked devices.
Sans use a networkaccessible device through a large. Introduction to storage area networks semantic scholar. Although sans used to be the domain of larger companies, a recent study shows that. Ibm storage solutions enable clients to deploy a highspeed, lowlatency unified fabric architecture. Cisco san analytics delivers deep visibility into io traffic between the compute and the storage infrastructure. A network service menu that displays the customizable services across a broad category of network capabilities, including mobility, connectivity, and device management, alongside the quality of service qos controls and a demandbased pricing card, will create the perfect menu for future enterprise customers to choose from. In early installations, the entire san was located within a building or. There are different techniques for storage virtualization, one of the most popular being networkbased virtualization by means of storage area networks sans. How the san is logically created components used data storage and retrieval frameworks devicehost interconnectivity other parameterscomponents essential for a san.
The former uses file level storage and the latter uses block level storage. Storage area network architecture to support the flexibility of digital evidence storage article pdf available in international journal of computer applications 18241. Your data flow is only as fast as your network connectivity allows. Network attached storage nas is based on open networking standards. Cisco san analytics and san telemetry streaming solution. San devices appear to servers as attached drives, eliminating traditional network bottlenecks. Storage area network as a networked highspeed enterprise infrastructure nt windows nt. Introduction to storage area network, san ravi kumar khattar, mark s. Windows server 2012 r2 storage technical scenarios and solutions title of document 5 5 5 overview according to recent studies, more than 40 percent of information technology it staffs in the world today are encountering significant increases in data volume. Subscribe to our monthly newsletter, snia matters, and check out the latest edition here. As storage takes precedence, the following major initiatives emerge. 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.
Sans also enable new network architectures where multiple hosts. Storage data store is separated from the processors and separated processing. Storage area network as a networked high speed enterprise infrastructure. 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. 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. Three types of network storage options have typically been available. Similarly, it is important to select a nas architecture that offers the best filesharing scheme for a single largescale data image. Port buffering is a critical consideration in the ip based storage area network san architecture. This is certainly true of storage area networks sans. The san is an increasingly popular method of achieving the performance goals of small businesses.
Related terms such as storage area network and network attached storage are described in separate entries. Pdf storage area network fundamentals researchgate. 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. Product guide that can be downloaded in pdf format from. Storage area network san architecture refers to the logical layout of a san infrastructure. A san typically has its own network of storage devices that are generally not accessible through the local area network by other devices. An internet is a network of networks in which routers move data among a multiplicity of networks. A storage area network san is a secure highspeed data transfer network that provides access to consolidated blocklevel storage. Storage area network san ip storage networking arista. Storage area network essentials electronic commerce has made traditional data storage methods obsolete. Storage area network architectures technology white. This book highlights configuration guidelines and preferred practices for the storage area network san topology, clustered system, backend storage, storage pools and managed disks, volumes, remote copy services, and hosts. Due to the highlevels of fault tolerance built into a storage area network, sans are usually the.
High capacity, high availability, high scalability, ease of configuration, ease of. Peel away the layers of even the most complex technologies and you are likely to find that they provide the most basic of functions. A storage area network san is a high availability device used to interconnect computers and networks to a central repository of data. A storage area network san or storage network is a computer network which provides access to consolidated, blocklevel data storage.