From disk striping to distributed parity, RAID solutions can provide fault-tolerance and improve performance. But, how much do you really know about the different RAID levels? Take this short quiz and test your knowledge.
Note: Unfortunately, our poll tool, which I use to create each pop quiz, doesn’t let me indicate a correct answer after each question. To keep from giving away the answers before everyone has a chance to test his/her knowledge, and ruining all the fun, I’ve published the answers on the second page of this blog post. I encourage everyone to answer all the questions before looking at the second page.
The acronym RAID stands for:
Which of the following RAID levels provides no fault tolerance?
Which of the following RAID levels uses a fault-tolerance technique known as "disk mirroring"?
Which of the following RAID levels uses a fault-tolerance technique known as "distributed parity"?
Which of the following RAID levels uses a combination of disk striping and mirrored volumes?
What is the minimum number of disks required for RAID 0?
What is the minimum number of disks required for RAID 1?
What is the minimum number of disks required for RAID 5?
What is the minimum number of disks required for RAID 10?
Which of the following fault-tolerance techniques requires two separate disk controllers?
Answers are on the next page.
Edited 1/18/2011: Fixed an error in one of the answers to the first question and fixed a problem with the answers appearing on the first page.
