By Ulf Troppens
All you must learn about garage region Networks
The quantity of information of a standard corporation doubles each year. hence, businesses who personal 1TB of knowledge this day will personal 32TB in 5 years. garage networks support to tame such info amounts and to regulate this information progress successfully. for the reason that kept facts and data are the most important asset of any corporation, a person who's occupied with the making plans or the operation of IT structures calls for a uncomplicated wisdom of the primary and using garage networks.
Storage Networks Explained covers the fundaments, options and capabilities of garage networks corresponding to disk subsystems, Fibre Channel SAN, net SCSI (iSCSI), Fibre Channel over Ethernet (FCoE), community connected garage (NAS), dossier structures, and garage virtualization. moreover the authors describe using those strategies and the way they're designed to accomplish high-availability, flexibility, and scalability of information and purposes. extra consciousness is given to community backup and the administration of garage networks. Written through top specialists within the box, this booklet on garage zone networks is up to date and entirely revised.
Presents the fundamental thoughts of garage networks, comparable to I/O concepts, disk subsystems, virtualization, NAS and SAN dossier systems
Covers the layout of garage networks which offer versatile, highly-available, and scaleable IT systems
Explains using garage networks for info sharing, facts security, and electronic archiving
Discusses administration of garage networks utilizing SNMP, SMI-S, and IEEE 1244
This e-book offers procedure directors and approach architects, in addition to scholars and choice makers, with the instruments wanted for optimum choice and competitively priced use of garage networks.
The Linux magazine provided the 1st version with the “Editor’s selection Award 2005” within the classification “System management Book.”
Read or Download Storage Networks Explained: Basics and Application of Fibre Channel SAN, NAS, iSCSI, InfiniBand and FCoE PDF
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Additional info for Storage Networks Explained: Basics and Application of Fibre Channel SAN, NAS, iSCSI, InfiniBand and FCoE
Redundancy means that additional information is stored so that the operation of the application itself can continue in the event of the failure of a hard disk. You cannot increase the performance of an individual hard disk any more than you can improve its fault-tolerance. Individual physical hard disks are slow and have a limited life-cycle. However, through a suitable combination of physical hard disks it is possible to significantly increase the fault-tolerance and performance of the system as a whole.
This chapter uses many case studies to show how storage networks help in the design of IT systems that are more flexible and more fault-tolerant than conventional server-centric IT systems. Data protection (Backup) is a central application in every IT system. Using network backup systems it is possible to back up heterogeneous IT environments with several thousands of computers largely automatically. Chapter 7 explains the fundamentals of network backup and shows how these new techniques help to back up data even more efficiently.
4). 1). To increase fault tolerance, storage devices are sometimes connected to two servers, with only one server actually able to use the storage device at any one time. In both cases, the storage device exists only in relation to the server to which it is connected. Other servers cannot directly access the data; they always have to go through the server that is connected to the storage device. This conventional IT architecture is therefore called server-centric IT architecture. In this approach, servers and storage devices are generally connected together by SCSI cables.