Lab Manual For Comptia A+ Guide To It Technical Support
10th Edition
ISBN: 9780357440780
Author: Jean Andrews, Joy Dark, Jill West
Publisher: Cengage Learning
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Chapter 5, Problem 6TC
Explanation of Solution
Given:
RAID arrays.
To find: The RAID technique which does not lose data.
Solution:
RAID...
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Answer the following regarding RAID levels.a. Before adding the redundancy data, our RAID drive has 4 disk drives. If we choose RAID 1, how many extra drives do we need to add to store redundancy? RAID 5? RAID 6?b. We decide to use RAID 0 because we want our RAID drive to support multiple accesses as much as possible (that is, multiple different processes accessing disk simultaneously). Should we use small stripes or large stripes? Explain.c. RAID 4 is not used, why not? What RAID level would we use in place of RAID 4?
Which of the following is NOT true about RAID?
It is designed primarily to backup data.
The most common levels of RAID are Level 0, 1, 5, 6, and 10.
It can be implemented in hardware or software.
O Nested levels can combine other RAID levels.
Which of the following statements about RAID is correct?
Group of answer choices
a. All RAID configurations provide fault tolerance for up to one disk failure
b. A RAID 1 configuration of 4 disks has higher storage capacity than a RAID 0 configuration
c. RAID 5 allows up to two disk failures
d. During a RAID 5 disk failure, read performance is not impacted
e. A RAID 1 configuration of four 1TB disks has a storage capacity of 2TB
Chapter 5 Solutions
Lab Manual For Comptia A+ Guide To It Technical Support
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- Creating a RAID array is a way for producing live backups of physical hard drives; however, doing so willower the amount of available capacity on the physical hard drive. Alternatively, would you like to have backup at the cost of half of your available disc space? The ideal RAID configuration for a home computer system with frequent power outages that may result in hard disc failures is determined by the frequency of power outages.arrow_forwardCreating a RAID array is a way for producing live backups of physical hard drives; however, doing so will lower the amount of available capacity on the physical hard drive. Alternatively, would you like to have backup at the cost of half of your available disc space? The ideal RAID configuration for a home computer system with frequent power outages that may result in hard disc failures is determined by the frequency of power outages.arrow_forwardIt's possible that the use of RAID to do live backups of physical hard drives might have an effect on the amount of actual storage space that's accessible on a hard disc. Is it still desirable to create a backup if doing so involves using up 50 percent of the available space on the disc? In order to prevent the hard disks on a home computer from being corrupted as a result of the frequent loss of power, which RAID configuration is the most effective to use?arrow_forward
- Raid stands for Redundant Array of Independent Disks and there are 7 levels of RAID. Discuss any Three RAID level in detail?arrow_forward1. Raid Consider two implementations. Implementation A uses Raid Level 1 and B uses Raid Level 5. B places 5 disk drives into each parity group. How much disk space will be needed for each implementation if the intent is to provide 2 Terabytes of disk space to the application? What will the write time be for updating a block? Assume 10 millisecond read times and 10 millisecond write times on a disk drive.arrow_forwardHow much, if any, data can be recovered from a failed backup that was created with double parity in RAID systems?arrow_forward
- 6. The RAID level which mirroring is done along with stripping is a. RAID 1+0 b. RAID 0 c. RAID 2 d. Both a and barrow_forwardQuestion 32 4 Points What is RAID 50? How is it constructed? What is the minimum number of drives needed? Why would you use it over another RAID level? Use the editor to format your answer Question 33 4 Points When would fou use software RAID? When would you use hardware RAID? What are the advantages of one over the other? Use the editor to format your answerarrow_forwardA method for doing live backups of physical hard drives is to set up a RAID array, however doing so will diminish the hard drive's capacity. Would you rather have backup at the cost of using up half your disc space, as an alternative? Which kind of RAID is the best option for a home computer system that often experiences power outages that might lead to hard disc failures?arrow_forward
- Creating a RAID array is a technique for generating live backups of physical hard drives, however doing so will reduce the available capacity of the hard drive. Alternatively, would you like to have backup at the expense of half your available disk space? When it comes to a home computer system that has regular power outages that may result in hard disk failures, which kind of RAID is the best choice?arrow_forwardGive an example of an environment or application that best matches the characteristics of each of the following RAID levels. Cite your references. a. Level 0 b. Level 1 C. Level 3 d. Level 5 e. Level 6arrow_forwardCreating a RAID array is a technique for generating live backups of physical hard drives, although doing so will reduce the available capacity of the hard drive. Alternatively, would you want to have backup at the expense of half your available disc space? When it comes to a home computer system that has regular power outages that might result in hard disc failures, which form of RAID is the best choice?arrow_forward
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