I have 3 questions here that require the use of formulas to answer questions about storage capacity, read times and serial access time. Please show your work.
I need these completed within the next 7 hours.
Please show work
Please show work!
Given: A magnetic disk drive has the following characteristics:
10,000 RPM spin rate
2ns head-to-head switching time
3 us average track-to-track seek time
5 platters, 1024 tracks per platter side recorded on both sides, 50 sectors per track on all
1) What is this drive?s storage capacity assuming 512 byte sector size?
2) How long will it take to read the drive?s entire contents sequentially, assuming the data is
organized for maximum read efficiency and the read occurs cylinder by cylinder?
3) What is this drive?s serial access time, recalling that serial access time is the time required to
read the second of two sequential sectors? HINTS: Question 2 is asking you to compute the time it would take to sequentially
read the entire disk. Remember, there would be no rotational delay when
reading sequentially, so the formula the total TTT seeks + HTH switches +
the time required to read all of the tracks (total number of tracks / rotation
Question 3 is asking you to compute the time it would take to read the
second of two sequential sectors, not the entire disk. There are a few ways
to do this, but the easiest is to simply take the time to read the entire disk
and divide it by the number of sectors on the disk. This would give you an
average time to read one sector.
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Sep 13, 2020EXPERT
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