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Nt2580

In: Computers and Technology

Submitted By zaperoco
Words 7132
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NT 1210 M1
Case studies # 9
Dear Mr. Sheehan:
I would like to thank you for agreement regarding my recommendations to the company about deploying a SAN at each branch office, since each office uses data, audio, video and graphic files that are shared by staff at each location. The SAN may incorporate NAS devices which we have evaluated with different vendors. As we conducted a further research in order to provide you with more detail specifications on SAN and NAS solutions, we were able to come up with the following information design in a form of questions and answers.
What is required to implement a SAN and /or NAS? Storage-area networks (SANs) are composed of computers and remote storage devices. The computers are typically connected to the remote storage devices using SCSI over Fibre Channel (see Figure 1). Other implementations of SAN exist, but this is the most common. In a SAN, all the storage appears local, just as if the remote disk were directly connected to the computer and physically located inside the computer chassis. Network-attached storage (NAS) devices appear to the user as a remote drive letter or are named remote storage device. Typically, the operating system employs a protocol such as Network File System (NFS) or Common Internet File System (CIFS) to discover, log in, and transfer content to and from a storage device. NFS and CIFS both communicate over Ethernet. The user typically enters a username and password, and then is granted access to a particular device.

Figure 1. SAN and NAS use different protocols and transports. Click here to see an enlarged diagram.
Read more: http://broadcastengineering.com/mag/broadcasting_san_nas_practical/#ixzz1vw2GVkV9 The SAN and NAS storage schemes evolved to meet different needs. Some possible benefits of SAN include access to large amounts of data; sharing data among different applications on...

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