Concepts inPhoenix: a low-power fault-tolerant real-time network-attached storage device
Network-attached storage
Network-attached storage (NAS) is file-level computer data storage connected to a computer network providing data access to heterogeneous clients. NAS not only operates as a file server, but is specialized for this task either by its hardware, software, or configuration of those elements. NAS is often made as a computer appliance ¿ a specialized computer built from the ground up for storing and serving files ¿ rather than simply a general purpose computer being used for the role.
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Fault-tolerant design
In engineering, fault-tolerant design is a design that enables a system to continue operation, possibly at a reduced level (also known as graceful degradation), rather than failing completely, when some part of the system fails. The term is most commonly used to describe computer-based systems designed to continue more or less fully operational with, perhaps, a reduction in throughput or an increase in response time in the event of some partial failure.
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Real-time computing
In computer science, real-time computing (RTC), or reactive computing, is the study of hardware and software systems that are subject to a "real-time constraint"¿ e.g. operational deadlines from event to system response. Real-time programs must guarantee response within strict time constraints. Often real-time response times are understood to be in the order of milliseconds and sometimes microseconds.
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Personal computer hardware
Personal computer hardware are the component devices that are the building blocks of personal computers. These are typically installed into a computer case, or attached to it by a cable or through a port. In the latter case, they are also referred to as peripherals.
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Phoenix (mythology)
The phoenix, or phenix, is a mythical sacred firebird that can be found in the mythologies of the Arabian, Persians, Greeks, Romans, Egyptians, Chinese, Indians and Phoenicians. It is described as a bird with a colorful plumage and a tail of gold and scarlet .
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Phoenix, Arizona
Phoenix is the capital, and largest city, of the U.S. state of Arizona, as well as the sixth most populous city in the United States. Phoenix is home to 1,445,632 people according to the official 2010 U.S. Census Bureau data. It is the anchor of the Phoenix metropolitan area (also known as the Valley of the Sun), and is the 12th largest metro area by population in the United States with about 4.2 million people in 2010.
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Low-power broadcasting
Low-power broadcasting is electronic broadcasting at very low power and low cost, to a small community area. The terms "low-power broadcasting" and "micropower broadcasting" should not be used interchangeably, because the markets are not the same. The former term is more often used to describe stations who have applied for and received official licenses. The relationship between broadcasting power and signal range is a function of many things, such as the frequency band it uses e.g.
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I/O scheduling
Input/output (I/O) scheduling is a term used to describe the method computer operating systems decide the order that block I/O operations will be submitted to storage volumes. I/O Scheduling is sometimes called 'disk scheduling'.
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