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

Define the working of flip flops, Define the working of Flip Flops? Fli...

Define the working of Flip Flops? Flip flop is the basic unit of storage this is used to store one bit of information. Flip-flops are the synchronous bistable devices. The term

Explain types of assembly programs, Q. Explain types of assembly programs? ...

Q. Explain types of assembly programs? Assembly language programs can be written in two manners: COM Program: Having all segments as part of one segment EXE Program: that hav

Find how many bits of adc are required to get an resolution, Find how many ...

Find how many bits of ADC are required to get an resolution of 0.5 mV if the maximum full scale voltage is 10 V Ans. Given Resolution=.5mV Full scale output=+10v %resolut

Explain switching system of a finite state machine model, Show how finite s...

Show how finite state machine model helps in designing a switching system and give a typical example. Switching system fundamentally belongs to the class of finite state machi

Define functionality of application layer in tcp/ip protocol, Define the fu...

Define the functionality of application layer in TCP/IP protocol stack? Function of Application Layer: The top layer within the Internet reference model is the applicatio

What does a lock object involve, What does a lock object involve? The t...

What does a lock object involve? The tables. The lock argument.

What is an algorithm, What is an algorithm The solution to any problem ...

What is an algorithm The solution to any problem that is stated by an exact number of well-defined procedural steps is known as an algorithm.

What is an arithmetic processor, Q. What is an arithmetic processor? A ...

Q. What is an arithmetic processor? A distinctive CPU necessitates most of the control and data processing hardware for implementing non-arithmetic functions. As the hardware c

Software engineering - layered technology, S oftware Engineering - Layered...

S oftware Engineering - Layered Technology Although various authors have developed personal definitions of software engineering, a definition given by Fritz Bauer at the semin

Define the pulse-triggered (master-slave) flip-flops, Define the Pulse-Trig...

Define the Pulse-Triggered (Master-Slave) Flip-flops? The term pulse-triggered signify that data are entered into the flip-flop on the rising edge of the clock pulse, though th

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