These cylinder requests come in to a disk driver. The disk driver code can only buffer five requests at once. Requests for tracks 13, 21, 11, 80, and 65 come in. The order of the requests be processed are 13, 21, 11, 80, and 65. This indicates the seek algorithm used is: O C-SCAN RAID O FIFO OSSF

These cylinder requests come in to a disk driver. The disk driver code can only buffer five requests at once. Requests for tracks 13, 21, 11, 80, and 65 come in. The order of the requests be processed are 13, 21, 11, 80, and 65. This indicates the seek algorithm used is: O C-SCAN RAID O FIFO OSSF

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Q: When a file is saved to disk, the operating system is responsible for making sure that the blocks…

A: Introduction: On a wide range of storage devices, file systems may be employed on a variety of…

Q: Based on your knowledge of IRQ levels

A: Explainations:-

Q: When a file is opened for the first time, it is the responsibility of the operating system to ensure…

A: SSDs are the storage devices of the most recent generation. Utilizing flash-based memory, SSDs are…

Q: A disk contains total 200 tracks and Request Queue contains tracks 80, 160, 41, 136, 22, 18, 192.…

Q: A block is a contiguous sequence of sectors from a single track of one platter. Each request…

A: Introduction: The given statement is about the Disc Block Access. Explanation in the next step.

Q: Operating systems make an effort to maintain the position of consecutive blocks on the disk in the…

A: Encryption: This topic asks if operating systems preserve sequential file blocks on the same disc…

Q: Based on your understanding of IRQ levels, do you feel that if a program is creating a disk file and…

A: Given: Based on your understanding of IRQ levels, do you feel that if a programmed is creating a…

Q: The partition table is located at what byte offsets? 546 thru 609 0 thru 63 446…

A: A partition table is a data structure that provides basic information for a computer's operating…

Q: A disk contains total 200 tracks and Request Queue contains tracks 80, 160, 41, 136, 22, 18, 192.…

Q: | 1. Save each code snippet in a QtSPIM readable file (save as *.asm). Name your file according the…

A: Given code is in c++ language. We need to convert this code into MIPS assembly language. 1. We need…

Q: When a file is written to disk, the operating system is responsible for arranging the data blocks in…

A: Introduction: On a broad variety of different media, file systems may be implemented on a number of…

Q: Which kind of file access is most appropriate for chained file allocation on disk?

A: Chained file allocation works well with sequential file access on disk. The chain, which is…

Q: Multi-Answer Question Figure below illustrates the block diagram of a Unix file system. Two…

A: ans is given below

Q: The answer to this question depends on your understanding of interrupt requests (IRQs) and whether…

A: Introduction: An Interrupt Request is a signal sent by a hardware device to the central processing…

Q: In MIPS assembly how do I open a file, write to the buffer, and write what is in the buffer to the…

A: MIPS assembly is a low-level programming language commonly used for programming MIPS…

Q: Do you believe that if a program is creating a disk file and you press a key on the keyboard, the…

A: A keyboard buffer is a tiny amount of memory (RAM) in a computer used to temporarily hold keystrokes…

Q: A CPU with interrupt-driven I/O is busy servicing a disk request. While the CPU is midway through…

A: Interrupts: These are considered as signals that some external devices (mainly I/O devices) transfer…

Q: Based on your understanding of IRQ levels, do you feel that if you press a key on the keyboard while…

A: Introduction: An IRQ (interrupt request) value is a spot on the computer where it may anticipate a…

Q: Based on your knowledge of IRQ levels, do you believe a software producing a disk file would insert…

A: Given: Based on your knowledge of IRQ levels, do you believe a software producing a disk file would…

Q: Operating systems use the same disc block to read successive blocks of a file. What's all the fuss…

A: Intro File systems, which may be seen as a hierarchical structure, organize storage on disc drives:…

Q: Knowing the IRQ levels, do you suppose a key hit when a program is creating a disk file will be…

A: Knowing the IRQ levels, do you suppose a key hit when a program is creating a disk file will be…

Q: The sum of the rotational delay and seek time is known as the time. search transfer O 1/0 аccess

A: The, answer has given below:

Q: Disk requests are received by a disk drive for cylinders 13 , 6 , 1 , 29 , 28 , 8 in that order and…

A: Given data:- Disk requests are received by a disk drive for cylinders 13 , 6 , 1 , 29 , 28 , 8 in…

Q: I was wondering what the pros and cons of caching disc write operations were.

A: Answer is

Q: There is sequence of disk track requests: 75, 62, 99, 144, 50, 162, 110, 26, 198. Assume that the…

A: In SCAN Algorithm, disk head scans back and forth across tracks like an elevator. The first disk…

Q: The average time necessary for the correct sector of a disk to arrive at the read write head A…

A: The correct answer for the above question is:-

Q: Index is used to mark the location of the first sector in a soft-sectored disk. explain?

A: There is one statement given and the explanation for it is asked. Statement given, Index is used to…

Q: Based on your understanding of IRQ levels, do you feel that if you press a key on the keyboard while…

A: Introduction: A keyboard buffer is a small amount of RAM in a computer that is used to temporarily…

Q: Consecutive blocks of a file are kept on the same disk block from which they are read by operating…

A: Storage on disc drives is structured by file systems, which may be seen as a hierarchical structure:…

Q: Do you think that, given your knowledge of IRQ levels, a key pressed on the keyboard when a program…

A: Answer: In computing, an IRQ (Interrupt Request) is a signal sent by a device to the CPU to request…

Question

These cylinder requests come in to a disk driver. The disk
driver code can only buffer five requests at once.
Requests for tracks 13, 21, 11, 80, and 65 come in. The
order of the requests be processed are 13, 21, 11, 80, and
65. This indicates the seek algorithm used is:
C-SCAN
RAID
FIFO
SSF

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Define as disk driving force

VIEW

Step 2: Define as correct option explanation

VIEW

Step 3: Define as incorrect option explanation

VIEW

Solution

VIEW

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

It is tried that concurrent parts of a file will be stored on subsequent devices in sequence. Is there a particular reason why carrying out these steps is absolutely necessary for magnetic disks? Should one continue make use of solid-state drives (SSDs), even if they are readily accessible, or is this an activity that should be avoided? Why does this hold true?
What are the benefits of caching write operations on a disk, and what are the potential drawbacks?
Q} Compute the capacity of the disk with the following parameters 256 bytes per sector,600 sectors per rack, 40,000 tracks per surface, 2 surfaces per platter and 6 platters per disk
Based on your understanding of IRQ levels, do you feel that if a program is creating a disk file and you press a key, the key will be placed in the keyboard buffer before or after the file is created?
A CPU with interrupt-driven I/O is busy servicing a disk request. While the CPU is midway through the disk- service routine, another I/O interrupt occurs. a) What happens next? b) Is it a problem?! c) If not, why not? If so, what can be done about it?
On succeeding drives, attempts are made to store concurrent sections of a file. Is there a justification for why this is so important for magnetic disks? If SSDs are accessible, is it still essential to use them, or is it a waste of time? What causes this?
Hello I am trying to perform the instruction shown in the picture. May someone please help me on getting this function to work?
Based on the fig below create RDD using sparkContext.parallelize() #Create RDD from parallelize Create RDD using sparkContext.textFile()
Please solve
Operating systems make an effort to save individual pieces of a file in a sequential fashion on disk. So what if we use magnetic disks for it?SSDs: necessary even if you don't use them? Is this anything that we can figure out?
CPU with interrupt-driven I/O is busy servicing a disk request. While the CPU is midway through the disk service routine, another I/O interrupt occurs. Q.) Is it a problem?
What is non-return-to-zero method and give reason why it avoids writing data to a magnetic disk.