computer science

Nasan

Nasan is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Nasan rather than just read about it. In short: The Nasan Clustered File System is a shared disk file system created by the company DataPlow. Nasan software enables high-speed access to shared files located on shared, storage area network (SAN)-attached storage devices by utilizing the high-performance, scalable data transfers inherent to storage area networks and the manageability of network attached storage (NAS).

Key takeaways

Nasan belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Nasan to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Nasan from memory before moving on to harder problems.

Reference excerpt

The Nasan Clustered File System is a shared disk file system created by the company DataPlow. Nasan software enables high-speed access to shared files located on shared, storage area network (SAN)-attached storage devices by utilizing the high-performance, scalable data transfers inherent to storage area networks and the manageability of network attached storage (NAS). Nasan derives its name from the combination of network attached storage (NAS) and storage area network (SAN). Nasan clustered file sharing is an extension of traditional LAN file sharing yet utilizes storage area networks for data transfers. Deploying a Nasan cluster entails configuring LAN file sharing, installing Nasan file system software, and connecting computers and storage devices to the SAN.

Platforms Supports Linux and Solaris operating systems. Supports all SAN-based, block-level storage protocols including Fibre Channel and iSCSI.

References

External links "DataPlow Products". Web site. Archived from the original on September 14, 2013. Retrieved May 24, 2013.

Worked examples

Example 1 — a first encounter with Nasan

Start with the simplest possible case. Write down what Nasan claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Nasan before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Nasan ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Nasan

In research: Nasan appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Nasan in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Nasan is common in secondary-school and first-year university syllabi. It links to neighbouring topics Computer file systems, Computing stubs, Disk file systems, so understanding it makes those chapters shorter.
In everyday life: Look for Nasan outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Nasan in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Nasan means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Nasan out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Nasan in simple terms?

Why does Nasan matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Nasan?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Nasan.