Explain redundant array of independent disks levels, Computer Engineering

Assignment Help:

Q. Explain Redundant Array of Independent Disks levels?

One such industrial standard that exists for multiple-disk database schemes is called as RAID which implies Redundant Array of Independent Disks. The fundamental aspects of RAID disks are:

  • Operating system considers physical disks as a single logical drive.
  • Data is distributed across physical disks.
  • In case of failure of a disk redundant information (E.g. parity bit) kept on redundant disks is used to recover data.

754_RAID levels.png

601_RAID levels1.png

Figure: The RAID levels

The term RAID was invented by researchers at University of Berkley. In their paper meaning of RAID was Redundant Array of Inexpensive Disks. But later the term Independent was adopted in place of Inexpensive to signify performance and reliability gains.

RAID has been proposed at different levels that are fundamentally aimed to cater for widening gap between processor and on-line secondary storage technology.


Related Discussions:- Explain redundant array of independent disks levels

Gantt chart and kiviat diagram, Q. What is Gantt chart and Kiviat diagram? ...

Q. What is Gantt chart and Kiviat diagram? Gantt chart: Gantt chart explains numerous activities of every processor with respect to progress in time in busy -overhead - id

Explain register marker, Explain Register marker. Register marker: St...

Explain Register marker. Register marker: Strowger selectors doing searching and counting. Conversely, the crossbar switch has no 'intelligence'. Something external to the

What are the various layers of a file system, What are the various layers o...

What are the various layers of a file system? The file system is composed of lots of dissimilar levels. Each level in the design uses the characteristic of the lower levels to

Stencil duplicating, Stencil Duplicating Equipment Required Stenci...

Stencil Duplicating Equipment Required Stencil Duplicator Thermal copier (optional) Electronic stencil cutter Materials Stencil COPY paper Ink Clean

What is processor time of a program, What is processor time of a program? ...

What is processor time of a program? The periods during which the processor is active is known as processor time of a program it depends on the hardware included in the executi

Poor technology or system requirements definition, Poor Technology or Syste...

Poor Technology or System Requirements Definition - Information System Previously we looked at product design and specifically the importance of requirements capture as part o

Define protocol, Define Protocol. It is a set of rules that are followe...

Define Protocol. It is a set of rules that are followed by interconnecting computers and terminals to make sure the orderly transfer of information

Determine flip flop the msi chip is dual edge triggered, The MSI chip 7474 ...

The MSI chip 7474 is ? Ans. MSI chip 7474 is TTL, dual edge triggered D Flip-Flop.

Define the term internet, Internet:  The Internet, an umbrella term cov...

Internet:  The Internet, an umbrella term cover countless network and services that comprise a super-network, is a global network of computer networks that was started in the 1

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd