Storage Area Networks
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
computer science crazy
Super Moderator
******

Posts: 3,048
Joined: Dec 2008
#1
21-09-2008, 11:37 AM


Definition

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. The common communication and data transfer mechanism for a given deployment is commonly known as the storage fabric. The purpose of the SAN is to allow multiple servers access to a pool of storage in which any server can potentially access any storage unit. Clearly in this environment, management plays a large role in providing security guarantees (who is authorized to access which devices) and sequencing or serialization guarantees (who can access which devices at what point in time).

SANs evolved to address the increasingly difficult job of managing storage at a time when the storage usage is growing explosively. With devices locally attached to a given server or in the server enclosure itself, performing day-to-day management tasks becomes extremely complex; backing up the data in the datacenter requires complex procedures as the data is distributed amongst the nodes and is accessible only through the server it is attached to. As a given server outgrows its current storage pool, storage specific to that server has to be acquired and attached, even if there are other servers with plenty of storage space available. Other benefits can be gained such as multiple servers can share data (sequentially or in some cases in parallel), backing up devices can be done by transferring data directly from device to device without first transferring it to a backup server.

So why use yet another set of interconnect technologies? A storage area network is a network like any other (for example a LAN infrastructure). A SAN is used to connect many different devices and hosts to provide access to any device from anywhere. Existing storage technologies such as SCSI are tuned to the specific requirements of connecting mass storage devices to host computers. In particular, they are low latency, high bandwidth connections with extremely high data integrity semantics. Network technology, on the other hand, is tuned more to providing application-to-application connectivity in increasingly complex and large-scale environments. Typical network infrastructures have high connectivity, can route data across many independent network segments, potentially over very large distances (consider the internet), and have many network management and troubleshooting tools.
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
Reply
computer science crazy
Super Moderator
******

Posts: 3,048
Joined: Dec 2008
#2
16-10-2009, 11:41 AM

A storage area network (SAN) is a architecture to attach remote computer storage devices (such as disk arrays, tape libraries, and optical jukeboxes) to servers in such a way that the devices appear as locally attached to the operating system. Although the cost and complexity of SANs are dropping, they are uncommon outside larger enterprises
Sharing storage usually simplifies storage administration and adds flexibility since cables and storage devices do not have to be physically moved to shift storage from one server to another.Other benefits include the ability to allow servers to boot from the SAN itself. This allows for a quick and easy replacement of faulty servers since the SAN can be reconfigured so that a replacement server can use the LUN of the faulty server. This process can take as little as half an hour and is a relatively new idea being pioneered in newer data centers. There are a number of emerging products designed to facilitate and speed this up still further. Brocade, for example, offers an Application Resource Manager product which automatically provisions servers to boot off a SAN, with typical-case load times measured in minutes. While this area of technology is still new many view it as being the future of the enterprise data center
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page

Quick Reply
Message
Type your reply to this message here.


Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  detection and localization of multiple spoofing attackers in wireless networks ppt jaseelati 0 279 17-01-2015, 02:52 PM
Last Post: jaseelati
  QoS in Cellular Networks Based on MPT computer science crazy 5 5,098 01-04-2014, 09:26 AM
Last Post: seminar project topic
  Grid Voltage Regulation Utilizing Storage Batteries in PV Solar seminar ideas 7 7,534 10-01-2014, 04:27 PM
Last Post: seminar project topic
  DEFENDING WIRELESS NETWORKS FROM RADIO INTERFERENCE ATTACKS pdf seminar projects maker 0 432 25-09-2013, 02:12 PM
Last Post: seminar projects maker
  FROM GSM TO LTE - AN INTRODUCTION TO MOBILE NETWORKS AND MOBILE BROADBAND seminar projects maker 0 437 23-09-2013, 04:56 PM
Last Post: seminar projects maker
  Wireless sensor networks… And zigbee PPT study tips 0 569 10-09-2013, 02:01 PM
Last Post: study tips
  Design and Verification of Area Efficient High-Speed Carry Select Adder pdf study tips 0 572 10-09-2013, 12:40 PM
Last Post: study tips
  Design of Area and Power Efficient Modified Carry Select Adder pdf study tips 0 462 29-08-2013, 04:34 PM
Last Post: study tips
  Autonomous Routing Algorithm for LEO/GEO Satellite Networks pdf study tips 0 413 20-07-2013, 04:57 PM
Last Post: study tips
  ATM Transport in Mobile Networks with Tellabs 8600 Managed Edge System pdf study tips 0 351 17-07-2013, 01:17 PM
Last Post: study tips