Compare the concept of RAID and describe its various levels in a Table on the following...
Compare the concept of RAID and describe its various levels in a Table on the following parameters :
1. Cost
2. Availability
3. Response time
4. Reliability
Homework Answers
Redundant arrays of independent disks are used for connecting multiple disks into one big disk. This allows an organisation to create redundant data and store them into disks. These allows users to not loose their data when there is a disaster. RAID is used for higher reliability and higher performance.
The following is the type of RAID with their characteristics:
| RAID LEVEL | COST | AVAILABILITY | RESPONSE TIME | RELIABILITY |
| RAID 0 | LOWEST | Readily Available | HIGH response time | Not reliable |
| RAID 1 | Double cost then RAID 1 | Easily available | medium response time | Reliable |
| RAID 2 | High cost | Not easily available | Low response time | Reliable |
| RAID 3 | Lower cost then RAID 2 | Available | Medium Response time | not reliable |
| RAID 4 | High cost | Available | High response time | Reliable |
| RAID 5 | most costlier than RAID 4 | Easily available | High response time | Reliable |
| RAID 6 | Costly | Available | High response time | Reliable |
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Compare the concept of RAID and describe its various levels in a
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