OSChapter 7 #2Homework Assignment SPRING 2015

2.Given the following characteristics for a magnetic tape using linear recording as described in this chapter:

Density = 1600 bpi

Speed = 1500 inches/second

Size = 2400 feet

Start/stop time = 4 ms

Number of records to be stored = 200,000 records

Size of each record = 160 bytes

Block size = 10 logical records

IBG = 0.5 inch

Find the following:

a.Number of blocks needed

b.Size of the block in bytes

c.Time required to read one block

d.Time required to write all of the blocks.

e.Amount of tape used for data only, in inches

f.Total amount of tape used (data + IBGs), in inches