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Magazine Problem 3
Define the following terms: disk, disk pack, track, block, cylinder, sector, interblock gap, read/write head.
Problem 5
Discuss the mechanism used to read data from or write data to the disk.
Problem 6
What are the components of a disk block address?
Problem 7
Why is accessing a disk block expensive? Discuss the time components involved in accessing a disk block.
Problem 9
What are the main goals of the RAID technology? How does it achieve them?
Problem 10
How does disk mirroring help improve reliability? Give a quantitative example.
Problem 11
What are the techniques used to improve performance of disks in RAID?
Problem 12
What characterizes the levels in RAID organization?
Problem 13
How does double buffering improve block access time?
Problem 14
What are the reasons for having variable-length records? What types of separator characters are needed for each?
