Database System Concepts
7th Edition
ISBN: 9789332901384
Author: Henry F. Korth & S. Sudarshan Abraham Silberschatz
Publisher: MCGRAW-HILL HIGHER EDUCATION
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 12, Problem 6PE
Explanation of Solution
a.
Redundant Array of Independent Disks (RAID) level 1 scheme:
RAID’s are a number of hard disks which store exact same data. Different RAID levels are available from 1 to 10, each with different significance.
The scheme for getting the effect of atomic block writes with the RAID level 1 (mirroring) is shown below:
- A block write operation is performed as follows, to secure atomicity.
- Write the information onto the physical block which is located first.
- Write the similar information onto the physical block located at the second, when the first write accomplishes successfully.
- Only after the second write accomplishes successfully, the output is announced.
- Each set of “2” physical blocks is tested during recovery.
- Further process is not required if both are same and there is unnoticeable partial-write...
Explanation of Solution
b.
Redundant Array of Independent Disks (RAID) level 5 scheme:
RAID’s are a number of hard disks which store exact same data. Different RAID levels are available from 1 to 10, each with different significance.
The scheme for getting the effect of atomic block writes with the RAID level 5 (block interleaved, distributed parity) is shown below:
- Initially, the data is written in the information block.
- Once this write is successful, the same data is written into the related parity block.
- The write is considered successful only when both the writes are successfully completed...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
What are three examples each of closed-ended, open-ended, and range-of-response questions? thank you
Create 2 charts using this data. One without using wind speed and one including max speed in mph.
Write a Report and a short report explaining your visualizations and design decisions. Include the following:
Lead Story: Identify the key story or insight based on your visualizations.
Shaffer’s 4C Framework: Describe how you applied Shaffer’s 4C principles in the design of your charts.
External Data Integration: Explain the second data and how you integrated it with the Halloween dataset. Compare the two datasets.
Attach screenshots of the two charts (Bar graph or Line graph)
The Shaffer 4 C’s of Data Visualization
Clear - easily seen; sharply defined• who's the audience? what's the message? clarity more important than aestheticsClean - thorough; complete; unadulterated, labels, axis, gridlines, formatting, right chart type, colorchoice, etc.Concise - brief but comprehensive. not minimalist but not verboseCaptivating - to attract and hold by beauty or excellence does it capture…
How can I resolve the following issue?
Knowledge Booster
Similar questions
- I need help to resolve, thank you.arrow_forwardLet the user choose encryption or decryption. For encryption, let user input the key in Hexadecimal number, the plain text in Hexadecimal number, output the ciphertext (in hexadecimal numbers). For decryption, let user input the key in Hexadecimal number, the ciphertext (in hexadecimal numbers), output the decrypted message (Hexadecimal number). Both encryption and decryption should output the different operation results for each round like the following: For example: Round 1: E(R0) = ...... (Hex or Binary) K1 = …… E(Ro) xor K1 = S-box outputs = …… f(Ro1, K1) = ….. L2 =R1 =……. La = Ra Round 2: .....• No Encryption/Decryption libraries or functions provided by the third party are allowed. Submit your program codes to Moodle with the notes of how to compile and run your program.arrow_forwardWhen the given integer variable numberOfPackages is: greater than 12, output "Needs more than one box". between 5 inclusive and 12 inclusive, output "Large box". between 0 exclusive and 4 inclusive, output "Small box". less than or equal to 0, output "Invalid input". End with a newline.arrow_forward
- summarize in a short paragraph how to Advance Incident Response and Automation in ML home based security systemsarrow_forward1.[30 pts] Computers generate color pictures on a video screen or liquid crystal display by mixing three different colors of light: red, green, and blue. Imagine a simple scheme, with three different lights, each of which can be turned on or off, projecting onto a glass screen: We can create eight different colors based on the absence (0) or presence (1) of light sources R,G and B: R G B Color 0 0 0 Black 0 0 1 Blue 0 1 0 Green 0 1 1 Cyan 1 0 0 Red 1 0 1 Magenta 1 1 1 0 Yellow 1 White 1 Each of these colors can be represented as a bit vector of length 3, and we can apply Boolean operations to them. a. The complement of a color is formed by turning off the lights that are on and turning on the lights that are off. What would be the complement of each of the eight colors listed above? b. Describe the effect of applying Boolean operations on the following colors: Λ 1. Red(100) ^ Magenta(101)= Blue(001) 2. Bue(001) | Green(010)= 3. Yellow(100) & Cyan(011)= 2.[30 pts] Perform the following…arrow_forwardD. S. Malik, Data Structures Using C++, 2nd Edition, 2010arrow_forward
- Methods (Ch6) - Review 1. (The MyRoot method) Below is a manual implementation of the Math.sqrt() method in Java. There are two methods, method #1 which calculates the square root for positive integers, and method #2, which calculates the square root of positive doubles (also works for integers). public class SquareRoot { public static void main(String[] args) { } // implement a loop of your choice here // Method that calculates the square root of integer variables public static double myRoot(int number) { double root; root=number/2; double root old; do { root old root; root (root_old+number/root_old)/2; } while (Math.abs(root_old-root)>1.8E-6); return root; } // Method that calculates the square root of double variables public static double myRoot(double number) { double root; root number/2; double root_old; do { root old root; root (root_old+number/root_old)/2; while (Math.abs (root_old-root)>1.0E-6); return root; } } Program-it-Yourself: In the main method, create a program that…arrow_forwardI would like to know the main features about the following 3 key concepts:1. Backup Domain Controller (BDC)2. Access Control List (ACL)3. Dynamic Memoryarrow_forwardIn cell C21, enter a formula to calculate the number of miles you expect to drive each month. Divide the value of number of miles (cell A5 from the Data sheet) by the average MPG for the vehicle multiplied by the price of a gallon of gas (cell A6 from the Data sheet).arrow_forward
- Microsoft Excelarrow_forwardIn cell C16, enter a formula to calculate the price of the vehicle minus your available cash (from cell A3 in the Data worksheet). Use absolute references where appropriate—you will be copying this formula across the row what fomula would i use and how do i solve itarrow_forwardWhat types of data visualizations or tools based on data visualizations have you used professionally, whether in a current or past position? What types of data did they involve? What, in your experience, is the value these data views or tools added to your performance or productivity?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education