Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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If connected files are fragmented, how do they get fixed by defragmentation?
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- Operating systems take great care to ensure that each block of a file is written to a new, unwritten block of the storage medium in a sequential order. When working with magnetic disks, why is this step so crucial?arrow_forwardWhat are the pros and cons of caching disc write operations?arrow_forwardWhen saving a file, the operating system is responsible for arranging the blocks in the correct order. In terms of magnetic disks, what does this mean exactly? What would occur if an SSD wasn't used instead? Just what is happening?arrow_forward
- 1. Explain why must the number of I/O requests be minimized. 2. How can the total seek time be reduced? Explain in good detail, with great examplesarrow_forwardWhenever a file is saved to disk, the operating system is responsible for ensuring that the blocks are arranged in the correct order. Why is this so important in the context of magnetic disks? Would it make a difference if solid-state drives (SSDs) were utilized instead? What happened?arrow_forwardWhat are some potential benefits and drawbacks of caching disc write operations, and how do they compare to one another?arrow_forward
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