Programming
CS340 Grantham University I/O Performance Analysis Paper

CS340

Grantham University

Question Description

You may need to install the "sysstat" and "iotop" package for this exercise

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I/O Performance Analysis Part 1 Start your Linux Partition from a fresh boot and open the Terminal. Do not open any other applications at this time. NOTE: You may need to install the "sysstat" and "iotop" package for this exercise: Type command: apt-get install sysstat apt-get install iotop run the following command to a 50MB test file dd if=/dev/zero of=test.file bs=1024 count=50000 Now run this command to repeatedly show another file from the first file. This is creating I/O load on the system. while true; do dd if=/test.file of=test2.file bs=1024;rm test2.file; done Using iostat watch the I/O for your devices and all of its partitions over 30 second intervals. List the command used and record your findings. Do not display CPU statistics. Using iotop, report which three processes are the most I/O intensive. Part 2 Add 3 new 50 MB Fixed Size Virtual Disks to your linux Partition. This is done using the Virtual Box interface while your Linux Virtual Machine is shut down. Switch to the root user sudo su Using fdisk create 3 new "linux raid auto" partitions. One for each new drive added. Use the full space available on each disk. i.e. /dev/sdb1 /dev/sdc1 /dev/sdd1 install "mdadm" package apt-get install mdadm *If asked for a "mail server" choose "No Configuration" **This can take a few minutes to install. Show a striped array (RAID 0) using all three disks. Create Filesystem on New Raid 0 Array Mount your new striped filesystem What is the size of the filesystem? Why? Repeat Part 1 of this assignment but this time make sure you are using your new striped filesystem. To do that just change to that directory cd /stripefs Summarize your findings about your new RAID 0 filesystem and iostat output. Did you achieve desired results? If not, why not and what would need to be changed in a real world production server to achieve desired results? You will cra Word or Libre Writer Document which contains results from the above analysis and responses. Please insert your screenshots into your word document with supporting documentation. ...
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Final Answer

Hey therePlease check this.I put everything in your doc file. Please let men know if you want changes. I will be happy to help.

I/O Performance Analysis
Part 1
Start your Linux Partition from a fresh boot and open the Terminal. Do not open any other
applications at this time.
NOTE: You may need to install the "sysstat" and "iotop" package for this exercise:
Type command:
apt-get install sysstat
apt-get install iotop
run the following command to a 50MB test file
dd if=/dev/zero of=test.file bs=1024 count=50000
Now run this command to repeatedly show another file from the first file. This is creating I/O
load on the system.
while true; do dd if=/test.file of=test2.file bs=1024;rm test2.file; done
Using iostat watch the I/O for your devices and all of its partitions over 30 second intervals. List
the command used and record your findings. Do not di...

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UCLA

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