Posts Tagged ‘Network Attached Storage’

What is a Storage Area Network?

November 28th, 2009



Have you even tried to translate computer jargon into real language an ordinary person can
understand? It’s almost impossible! It is almost like computer junkies don’t want us commoners
know what they are discussing. Take, for instance, a storage area network. Since I don’t know
anything about this topic, I decide to search the Internet for information. My results include
mention of information likely written in a foreign language.

Not to pick on Wikipedia, but their definition was the first one I came across. All the others I
found were just about as bad when describing storage area networks. According to Wikipedia,
“In computing, a Storage Area Network (SAN) is an architecture to attach remote computer
storage devices such as disk array controllers, tape libraries and CD arrays to server in such a
way that to the operating system the devices appear as locally attached devices…By contrast to a
SAN, Network Attached Storage (NAS), uses file-based protocols such as NFS or SMB/CIFS
where it is clear that the storage is remote, and computers request a portion of an abstract file
rather than a disk block.”

What? I think I know less about what a SAN or storage area network is than before I read the
definition. I guess there needs to be a special dictionary published just for computer jargon.
Especially when they borrow another word commonly used to mean something else. This
definition calls a storage area network an architecture. When I think of architecture, I
automatically bring to mind a particular building style, like Tudor architecture. Who would have
ever guessed you could also use the term architecture to describe how you build a computer
system. Would you like your Apple Macbook Pro with Tudor architecture or Victorian
architecture? Sorry, but I had to look this term up to find what it meant in computer jargon.
Should you have to look up the definition of a definition?

The next thing that bothers me about computer definitions is the number of acronyms they use. If
I don’t know what something means and have to look up a definition, I probably also don’t know
what the acronyms stand for. Spell them out, please! For instance, what is NSF? How about
SMB/CIFS? For all I know, they’re contagious diseases.

I guess it just goes to show there is a part of the brain that thinks like a computer. Like most other
talents, you either have it or you don’t. While one person can read the definition of a storage area
network and come away with a clear idea of what the term means, some of us just can’t wrap our
brains around the idea.

What I gather from what I have read is that a Storage Area Network is the hardware and software
that makes the Storage Area Network architecture work. If you do not configure and connect the
SAN properly, there is no connectivity between other systems.

By: Marvin Cains

More Home Network Basics – Additional Home Networking Components

November 18th, 2009



We have discussed the most basic home networking components. Here is a brief overview of those most basic components:

A switch is a device which directs information within your set of connections to its intended destinations.

A Router is a device which allows the connection of several computers and devices to your network, allowing them to share and exchange information.

A modem is a device which decodes packets of information sent to and from the Internet, allowing Internet service to be provided to your computer.

Connecting your Internet modem to a router will allow all the devices connected to that router to access a shared Internet connection.

Now we will be introduced to another set of components used commonly in network setups. While these components are not necessary for basic system operation, they can increase the usefulness and efficiency of your home set of connections.

Print Server

A print server can be very useful in order to incorporate a permanent printer into your home network. It is a device which allows a single (or several) printer/s to be shared by the various computers on your set of connections. This means that you can access the printer form the computer in your office, as well as your laptop, with no problems. The value of a printer server is further increased by the fact that it does not require a specific computer to remain on in order to access the printer.

Network Attached Storage (NAS)

This is a device which provides hard drive space to be shared for the entire system of computers. This means that any information stored on the shared hard drive will be accessible from any computer on the network.

There is also a way to accomplish this without the use of an NAS, but it is less efficient. It is possible to store information in a shared folder saved onto one computer in the complex. However, in order to access this information from another connected device, the original computer must be on. Also, any information will take up space on the computers hard drive. The use of Network Attached Storage resolves these problems, by having information accessible at all times, as well as adding more hard drive space to the network.

There are two common types of Network Attached Storage. Some units are available with a built-in hard drive, while others use an external hard drive. In the latter scenario, the hard drive space is easily upgradeable, should more disk space be needed in the future.

These devices should be your first steps to creating a useful, efficient, and modern home computer network.

By: Budda Oliver