File: hw5.txt Name: Collaborators: Due date: Oct 2, 2012, 11:59pm To handin: Create a folder in your CS account called cs457. Inside of that directory create a directory called handin. Leave your completed hw2.txt in your handin directory. Make sure not to change it after the due date - I will check the "last modified" time on the file. File permissions: make sure that your handin directory is not publicly readable. Use "chmod og-rx handin" and "chomd og-rx handin/*" to make the directory and files so they are not readable by others. I can still read your files because I have admin/root access. Grading: 12 points. * Problem 1 * Suppose you have a budget to build a computer for about $2000. With this price point in mind, pick out memory, hard drive, USB flash drive, CPU with cache, and big-a** backup (tape maybe). Create a table listing for each type of storage the total size, total price, price/GB, speed, and price/speed. For the backup (tape maybe) if the drive is really expensive, then assume you already have one. For the CPU cache, get a guess on the price of the cache by comparing two CPUs that are as identical as possible except for a difference in their cache size. For each price quoted, provide a link to where you got it from. You can get it from anywhere you want. One place I use is newegg.com. * Problem 2 * Suppose you have $2000 just for the hard drives in your computer. Using quotes for real hard drives, answer the following (and explain). 2a: What is the largest total size you can get for this amount? For these drives, what is the mean time to failure? What is the bandwidth? 2b: If you are using RAID-5, what is the fastest bandwidth you can get for this amount? If you use n drives in RAID-5, assume the bandwidth is roughly (n-1) times the bandwidth for one drive. What is the mean time to failure for the RAID with these drives? What is the total storage? 2c: Can you find a solid state drive that is faster than what you found in 2b? How fast is it? How do they compare in price/GB?