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

Adbms, what are the different way of executing pipelines

what are the different way of executing pipelines

What is the difference between activity and sequence diagram, The following...

The following are the difference among Activity and Sequence Diagrams: A sequence diagram represents the way of processes implement in a sequence. For example, the order of op

Define parallel programming, Conventionally software has been written for s...

Conventionally software has been written for serial computation in that programs are written for computers which have a single Central Processing Unit (CPU). Here the problems are

Explain the differences between macros and subroutines, Explain the differe...

Explain the differences between macros and subroutines. Macros Vs Subroutines (i) Macros are pre-processor directives which are processed before the source program is pass

What is .net and .net framework, What is .NET / .NET Framework?  It i...

What is .NET / .NET Framework?  It is a Framework in which Windows applications might be developed and run. The Microsoft .NET Framework is a platform for building, deploying,

Qualitative independent variable, Let Consider a multiple regression model ...

Let Consider a multiple regression model for a response y, with one quantitative idividually variable x1, and one qualitative variable at three levels. a)    Write a first-order m

Define cloud computing with example, Define Cloud Computing with example. ...

Define Cloud Computing with example. Cloud computing is a model for enabling convenient, on-demand network access to a shared pool of configurable computing resources (e.g., se

Simulated annealing - artificial intelligence, Simulated Annealing: On...

Simulated Annealing: One way to get around the problem of local maxima, and related problems like ridges and plateaux in hill climbing is to allow the agent to go downhill to

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