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Galvin Edition 9 Exercise 12 Question 11 (Page No. 582)

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What are the advantages of the variant of linked allocation that uses a
FAT to chain together the blocks of a file?
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Galvin Edition 9 Exercise 12 Question 17 (Page No. 582)
Fragmentation on a storage device can be eliminated by recompaction of the information. Typical disk devices do not have relocation or base registers (such as those used when memory is to be compacted), so how can we relocate files? Give three reasons why recompacting and relocation of files are often avoided.
Fragmentation on a storage device can be eliminated by recompaction of the information. Typical disk devices do not have relocation or base registers (such as those used when memory is to be compacted), so how can we relocate files? Give three reasons why recompacting and relocation of files are often avoided.
asked Mar 22, 2019 in Operating System ajaysoni1924 67 views
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Galvin Edition 9 Exercise 12 Question 14 (Page No. 582)
Discuss how performance optimizations for file systems might result in difficulties in maintaining the consistency of the systems in the event of computer crashes
Discuss how performance optimizations for file systems might result in difficulties in maintaining the consistency of the systems in the event of computer crashes
asked Mar 22, 2019 in Operating System ajaysoni1924 18 views
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Galvin Edition 9 Exercise 12 Question 13 (Page No. 582)
Some file systems allow disk storage to be allocated at different levels of granularity. For instance, a file system could allocate 4 KB of disk space as a single 4-KB block or as eight 512-byte blocks. How could we ... performance? What modifications would have to be made to the free-space management scheme in order to support this feature?
Some file systems allow disk storage to be allocated at different levels of granularity. For instance, a file system could allocate 4 KB of disk space as a single 4-KB block or as eight 512-byte blocks. How could we take advantage of this flexibility to improve performance? What modifications would have to be made to the free-space management scheme in order to support this feature?
asked Mar 22, 2019 in Operating System ajaysoni1924 22 views
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Galvin Edition 9 Exercise 12 Question 12 (Page No. 582)
Consider a system where free space is kept in a free-space list. a. Suppose that the pointer to the free-space list is lost. Can the system reconstruct the free-space list? Explain your answer. b. Consider a file system ... currently being cached. c. Suggest a scheme to ensure that the pointer is never lost as a result of memory failure.
Consider a system where free space is kept in a free-space list. a. Suppose that the pointer to the free-space list is lost. Can the system reconstruct the free-space list? Explain your answer. b. Consider a file system similar to the one used by UNIX with ... the disk blocks is currently being cached. c. Suggest a scheme to ensure that the pointer is never lost as a result of memory failure.
asked Mar 22, 2019 in Operating System ajaysoni1924 82 views
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