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# CS609: System Programming Assignment No. 06 Semester: Fall 2012 Due Date: 06/02/2013

Assalam-o-Alaikum

Assignment # 6 CS609 has been uploaded. Its due date is 06 -02- 2013. Please discuss here about the assignment

Thanks

Instructions

It should be clear that your assignment will not get any credit if:

• The assignment is submitted after due date.
• The submitted assignment does not open or file is corrupt.
• Solution is copied from any other source.

Objective

• File System
• Block size
• Internal Fragmentation

Assignment

Part a)

10 Marks

What advantage and disadvantage do we get if Bytes per Sector used in a file system is too small/large? Your answer shall be in the following tabular format.

 Scenario Advantage Disadvantage No. of Bytes per Sector is Small No. of Bytes per Sector is Large

Part b)

10 Marks

Let suppose we have to store files on a hard disk having sizes given as below.

840 Bytes, 1790 Bytes, 650 Bytes, 2470 Bytes and 2840 Bytes.

You have to choose an optimal size of sector on your disk which also referred as Bytes per Sector or Block Size. You have the choice to choose the Sector size only from typical values 512 Bytes, 1024 Bytes or 2048 Bytes. Do not make random guess, do some calculations and report them in your solution. Based on your calculations, answer the following questions with reasons stated briefly.

Question No.1: What Block size will you choose if the objective is to have optimal disk space utilization?

Question No.2: What Block size will you choose if the objective is to have reduced access time?

Submission

You are required to submit a single MS word file through LMS.

Fall%202012_CS609_6%20%281%29.doc

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