Why ssds often use an fcfs disk-scheduling algorithm

Assignment Help Basic Computer Science

Reference no: EM131232009

1. Could a RAID level 1 organization achieve better performance for read requests than a RAID level 0 organization (with nonredundant striping of data)? If so, how?

2. None of the disk-scheduling disciplines, except FCFS, is truly fair (starvation may occur).

a. Explain why this assertion is true.

b. Describe a way to modify algorithms such as SCAN to ensure fairness.

c. Explain why fairness is an important goal in a time-sharing system.

d. Give three or more examples of circumstances in which it is important that the operating system be unfair in serving I/O requests.

3. Explain why SSDs often use an FCFS disk-scheduling algorithm.

Reference no: EM131232009

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