Nt 1230 Client Server Networking Unit 2 Assignment 1 Disk Redundancy Researc

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NT 1230 Client Server Networking Unit 2 Assignment 1 Disk Redundancy Research Unit 2 Assignment 1 Disk Redundancy Research 1. What does RAID stand for? Redundant array of independent disks 2. When would you use RAID? RAID’s are useful in large file servers, transaction of application servers, where data accessibility is critical, and fault tolerance is required. Nowadays, RAID is also being used in desktop systems for CAD, multimedia editing and playback where higher transfer rates are needed. 3. Define the following types of RAID: A. RAID 0 Blocks striped, no mirror, no parity. B. RAID 1 Blocks mirrored, no stripe, no parity. C. RAID 5 Blocks striped, distributed parity. D. RAID 6 Blocks striped, two distributed parity. 4. Why is RAID 0 of any use if it offers no redundancy? Fast performs and additional storage. 5. Why do you think that RAID 1 can be most expensive? Why would people utilize it .if it’s so costly? You will have to buy additional space. It has increase read performance. 6. If you, as a home user were to purchase a form of RAID, which would you choose and why? 0, because it has good file transfer speed and would be good for a home multimedia tool. 7. What is the difference between software RAID and hardware RAID? Hardware RAID offers better reliability compared to software RAID. A software RAID can be prone to data corruption, due to the fault of the RAID software or driver that is being used. A software RAID can also be affected if the host computer is heavily loaded. Heavy processing can cause some pieces of data to be delayed by a small amount of time. These delays can add up, and negate the benefits of the RAID array to some degree. NOTE: A good website to use for RAID illustration is – Http://www.lascon.co.uk/d008005.html References Knowledgebase. (n.d.). Retrieved January

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