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List and briefly define the different levels of schemes through which the OS views a set of physical disk drives as a single logical drive.

List and briefly define the different levels of schemes through which the OS views a set of physical disk drives as a single logical drive.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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List and briefly define the different levels of schemes through which the OS views a set of physical disk drives as a single logical drive. 

Disk Scheduling and RAID Disk scheduling is handled by operating systems for scheduling of input/output request for the disk in order to improve overall system performance. This is necessary because, for over four decades now, the increase in the speed of processor and main memory is incomparable with that of the disk. Apart from speed, disk storage space is another important factor in determining the level of performance of a system. Insufficient disk space can serve a bottleneck for system performance even when other resources are at high speeds. This have given rise to development of arrays of disks that operate independently and in parallel.
Transcribed Image Text:Disk Scheduling and RAID Disk scheduling is handled by operating systems for scheduling of input/output request for the disk in order to improve overall system performance. This is necessary because, for over four decades now, the increase in the speed of processor and main memory is incomparable with that of the disk. Apart from speed, disk storage space is another important factor in determining the level of performance of a system. Insufficient disk space can serve a bottleneck for system performance even when other resources are at high speeds. This have given rise to development of arrays of disks that operate independently and in parallel.
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