Answered: As we have seen, a potential drawback…

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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Question

As we have seen, a potential drawback of SSDs is that the underlying flash memory can wear out. For example, for the SSD in (Figure 1), Intel guarantees about 128 petabytes (128×1015128×1015 bytes) of writes before the drive wears out. Given this assumption, estimate the lifetime (in years) of this SSD for the following workloads:

Worst case for sequential writes: The SSD is written to continuously at a rate of 470 MB/sMB/s (the average sequential write throughput of the device).

Express your answer as an integer.

Worst case for random writes: The SSD is written to continuously at a rate of 303 MB/sMB/s (the average random write throughput of the device).

Express your answer as an integer.

Average case: The SSD is written to at a rate of 20 GB/dayGB/day (the average daily write rate assumed by some computer manufacturers in their mobile computer workload simulations).

Express your answer as an integer.