Exam 220-1101 topic 1 question 180 discussion

In a RAID 5 configuration, data is striped across multiple disks with parity information distributed among the drives. RAID 5 can tolerate the failure of one disk without losing data, as it uses the parity information to rebuild the data onto a new or functioning disk.

The disk failure notice during startup indicates that one or more disks in the RAID array have failed. The machine still seems to startup into Windows but at a much slower speed because the RAID 5 configuration can tolerate one disk failure and still operate, but with reduced performance and reliability. The technician most likely needs to rebuild the RAID, which means replacing the failed disk(s) and restoring the data from the parity information. Reinstalling the HDD drivers will not fix the disk failure. Replacing the failed drivers is not a valid option, as drivers are software, not hardware. Restarting the system will not fix the disk failure either. References: https://www.comptia.org/blog/what-is-raid-0-1-5-6-10

You need to replace the failed drive (C) before you can rebuild the array (B). So the answer is most definitely 100% C

According to ChatGPT: "In a RAID 5 configuration, data is distributed across multiple disks with parity information to provide fault tolerance. If the technician is receiving a disk failure notice and the system is still able to start up, it suggests that the RAID array is currently operating in a degraded state, meaning one of the disks has failed. The MOST likely action the technician needs to perform is: C. Replace the failed drives. Rebuilding the RAID (option B) is a step taken after replacing the failed drives. Once the failed drive is replaced, the RAID controller can rebuild the data on the new drive, restoring the RAID array to a fault-tolerant state. It's crucial to replace the failed drive as soon as possible to avoid further risks and performance issues."

If a monitored server is receiving a disk failure notice during startup, and the machine still seems to startup into Windows but at a much slower speed, and the machine utilizes a RAID 5 configuration, the technician MOST likely needs to rebuild the RAID. RAID 5 is a type of RAID configuration that uses parity data to provide redundancy and can withstand the failure of a single drive without losing data. However, if a drive fails, the RAID 5 configuration will enter degraded mode, which can cause the computer to slow down. Rebuilding the RAID can help to restore the redundancy and improve performance. Reinstalling the HDD drivers is not the best option for this scenario, as the issue is related to the RAID configuration and not the HDD drivers. Replacing the failed drives is not the best option for this scenario, as the technician has not yet identified which drive has failed. Restarting the system is not the best option for this scenario, as it is unlikely to resolve the issue.

I believe the straightforward answer here is B. Rebuild the RAID based on the parity information. RAID 5 - Striping with parity. Uses an aditional disk that can be rebuilt based on the parity information in the case of disk failure. (Professor Messer)

You’re gonna need to replace those drives FIRST before you rebuild the array. There is a reason they failed. Toss them. This reminds me of Sec+, where there are 2 legitimate answers. Both are right but you might be getting more points for one over the other.

I believe the straightforward answer here is B. Rebuild the RAID based on the parity information. RAID 5 - Striping with parity. Uses an aditional disk that can be rebuilt based on the parity information in the case of disk failure. (Professor Messer)

Given this situation, the MOST likely action for the technician to perform would be to rebuild the RAID. Rebuilding the RAID involves replacing the failed disk with a new one and allowing the RAID controller to rebuild the data onto the new disk. This process restores redundancy and performance to the RAID array. Replacing the failed drives (option C) is also a valid solution, but it may not be necessary if only one drive has failed and the RAID array can still function in a degraded state. However, if multiple drives have failed or if there are concerns about the reliability of other drives, replacing them would be a prudent course of action. What ChatGPT had to say

The disk failure notice during startup indicates that one or more disks in the RAID array have failed. The machine still seems to startup into Windows but at a much slower speed because the RAID 5 configuration can tolerate one disk failure and still operate, but with reduced performance and reliability. The technician most likely needs to rebuild the RAID, which means replacing the failed disk(s) and restoring the data from the parity information. Reinstalling the HDD drivers will not fix the disk failure. Replacing the failed drivers is not a valid option, as drivers are software, not hardware. Restarting the system will not fix the disk failure either.

The technician most likely needs to replace the failed drives in the RAID 5 configuration. A disk failure notice during startup indicates that one or more drives in the RAID 5 array have failed. RAID 5 requires at least three drives, and if one of the drives fails, the RAID array becomes degraded. In a degraded state, the RAID 5 array can still function, but with reduced performance and data redundancy.