18-09-2014, 02:17 PM
NETWORK ATTACHED STORAGE
[attachment=68115]
Abstract--
This document attempts to provide an overview of network attached storage(NAS).Network Attached Storage, or NAS, is a storage mechanism that uses special storage devices which are connected directly to the network media. These devices are assigned an IP address. Requests for file access are mapped by the main server to the NAS file server. server, both application programs and files can be served faster because they are not competing for the same processor resources.
Keywords-- E-mail Archiving ,Networking Traffic ,Remote Offices ,Virtual Disk Library,Midrange NAS Architecture
I.INTRODUCTION
This paper is based on the topic Network Attached Storage(NAS). NAS describes an architecture for a secured file system which guarantees the end-to-end encryption for data. Design of this system provides a better cost-effective storage solutions with scalability ,performance and reliability. As the number of users and amount of data in the network increases, the need for optimizing storage becomes essential.Network Attached Storage is the best technology used in this context.[1,2,9]
The benefit of NAS over older Direct Attached Storage (DAS) is that it separates storage from servers,which results in reduced costs and easier implementation.As the name implies, NAS attaches directly to the LAN. It provides direct access to the file system and disk storage.This result in
providing faster responses to data requests. [2]
A. Direct Attached Storage (DAS)
Direct attached storage describes a storage device that is attached directly to a host system. An example of DAS is the hard drive which is internally or externally attached to a server computer. DAS is the most common method of storing data for computer systems. Over the years, though, new technologies have emerged and new storage concept came into existence [3]
B. Network Attached Storage (NAS)
Network Attached Storage, or NAS, is a data storage mechanism that uses special devices which is connected directly to the network . These devices has an IP address and can then be made accessible to clients via a server that acts as a way to access the data, or in some cases it allows client systems to be accessed the storage without an intermediary. [3]
G. Solving Business Needs
Many small business firms lack the specializes staffs required to manage a complex storage environment.when storage systems are difficult to deploy or maintain, or if they mustbe managed locally for better performance. Many business has inefficient and incovinient storage, NAS servers provides a solution for this
ADVANTAGES
A NAS appliance features the following benefits:
A. Decreased IT Staff Costs
On the front end, businesses welcome extreme amounts of information and strive to manipulate it for use in real time. On the back end, IT professionals, with their current infrastructures, scramble to accommodate the exponentially increasing data burden. General-purpose servers, especially, require large amounts of skilled personnel time to solve storage and file access challenges.[1,7]
In contrast, a NAS device requires little IT staff time and effort. Management is accomplished through a graphical user interface (GUI) in a Web browser, which enables NAS access from anywhere on the network. Since a NAS filer is pre-configured to support specific file-serving needs, administration is simplified, and this ease of use results in fewer operator errors. Also, because more capacity can be managed per administrator with NAS than is possible with general-purpose server storage activity, the total cost of ownership is lower.
. DISADVANTAGES
One drawback of networked attached storage systems is that the storage I/O operations consume bandwidth on the data network, thereby increasing the latency of network communication. This problem can be particularly acute in large client-server installations-the communication between servers and clients competes for bandwidth with the communication among servers and storage devices. [1,7,8]
X. CONCLUSION
Storage systems are becoming the important factor in corporate data centers and e-commerce. In order to satisfy needs of user, storage systems should consolidate resources, be centrally managed, allow data sharing and should be highly available. It should be possible to distribute over longer distances, make them secure,NAS systems provides all these functionalities [9]
[attachment=68115]
Abstract--
This document attempts to provide an overview of network attached storage(NAS).Network Attached Storage, or NAS, is a storage mechanism that uses special storage devices which are connected directly to the network media. These devices are assigned an IP address. Requests for file access are mapped by the main server to the NAS file server. server, both application programs and files can be served faster because they are not competing for the same processor resources.
Keywords-- E-mail Archiving ,Networking Traffic ,Remote Offices ,Virtual Disk Library,Midrange NAS Architecture
I.INTRODUCTION
This paper is based on the topic Network Attached Storage(NAS). NAS describes an architecture for a secured file system which guarantees the end-to-end encryption for data. Design of this system provides a better cost-effective storage solutions with scalability ,performance and reliability. As the number of users and amount of data in the network increases, the need for optimizing storage becomes essential.Network Attached Storage is the best technology used in this context.[1,2,9]
The benefit of NAS over older Direct Attached Storage (DAS) is that it separates storage from servers,which results in reduced costs and easier implementation.As the name implies, NAS attaches directly to the LAN. It provides direct access to the file system and disk storage.This result in
providing faster responses to data requests. [2]
A. Direct Attached Storage (DAS)
Direct attached storage describes a storage device that is attached directly to a host system. An example of DAS is the hard drive which is internally or externally attached to a server computer. DAS is the most common method of storing data for computer systems. Over the years, though, new technologies have emerged and new storage concept came into existence [3]
B. Network Attached Storage (NAS)
Network Attached Storage, or NAS, is a data storage mechanism that uses special devices which is connected directly to the network . These devices has an IP address and can then be made accessible to clients via a server that acts as a way to access the data, or in some cases it allows client systems to be accessed the storage without an intermediary. [3]
G. Solving Business Needs
Many small business firms lack the specializes staffs required to manage a complex storage environment.when storage systems are difficult to deploy or maintain, or if they mustbe managed locally for better performance. Many business has inefficient and incovinient storage, NAS servers provides a solution for this
ADVANTAGES
A NAS appliance features the following benefits:
A. Decreased IT Staff Costs
On the front end, businesses welcome extreme amounts of information and strive to manipulate it for use in real time. On the back end, IT professionals, with their current infrastructures, scramble to accommodate the exponentially increasing data burden. General-purpose servers, especially, require large amounts of skilled personnel time to solve storage and file access challenges.[1,7]
In contrast, a NAS device requires little IT staff time and effort. Management is accomplished through a graphical user interface (GUI) in a Web browser, which enables NAS access from anywhere on the network. Since a NAS filer is pre-configured to support specific file-serving needs, administration is simplified, and this ease of use results in fewer operator errors. Also, because more capacity can be managed per administrator with NAS than is possible with general-purpose server storage activity, the total cost of ownership is lower.
. DISADVANTAGES
One drawback of networked attached storage systems is that the storage I/O operations consume bandwidth on the data network, thereby increasing the latency of network communication. This problem can be particularly acute in large client-server installations-the communication between servers and clients competes for bandwidth with the communication among servers and storage devices. [1,7,8]
X. CONCLUSION
Storage systems are becoming the important factor in corporate data centers and e-commerce. In order to satisfy needs of user, storage systems should consolidate resources, be centrally managed, allow data sharing and should be highly available. It should be possible to distribute over longer distances, make them secure,NAS systems provides all these functionalities [9]