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

Data packet from one network to another, A device that forwards data packet...

A device that forwards data packet from one network to another is known as a  Switch device.

Game playing - artificial intelligence, Game Playing: We have now disp...

Game Playing: We have now dispensed with the necessary background material for AI problem solving techniques, and we just considered to looking at particular types of problems

Medical diagnosis program, Diagnosis: Medical diagnosis program bases on p...

Diagnosis: Medical diagnosis program bases on probabilistic analysis have been able to perform at the level of an expert physician tin several areas of medicine. Heckerman(1981)

How to calculate register indirect addressing, Q. How to calculate register...

Q. How to calculate register indirect addressing? The effective address of operand in this technique is calculated as: EA= (R) and D = (EA)  Address capability of regi

Define the object orientation and its analysis, Object Orientation and Anal...

Object Orientation and Analysis An Object is anything that exists within the problem domain that can be recognized by data and/or behaviour. An example of an object is a bike.

Elaborate the memory devices - semiconductor memory, Elaborate the memory ...

Elaborate the memory devices  - Semiconductor memory All of the memory used as main store in a modern computer is applied as semiconductors fabricated on wafers of silicon. Sem

What are the aspects of security policy, What are the aspects of security p...

What are the aspects of security policy The security policy should cover aspects such as network service access, physical access, limits of acceptable behaviour, company's pro

Describe the lists used in html, Q. Describe the LISTS used in html? Li...

Q. Describe the LISTS used in html? Lists are used when data are to be mentioned in form of points such as: causes of a particular issue, list of items etc. Lists break up mono

How to modify or delete a custom class name, 1. Click Tools > General Optio...

1. Click Tools > General Options, and then click the Object Mapping tab. 2. From the Object type list, select the standard object type that is associated with the object class

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