For maximum fault tolerance with six hard drives, which RAID configuration should be used?

For maximum fault tolerance with six hard drives, which RAID configuration should be used?

• A. RAID 3
• B. RAID 5
• C. RAID 10
• D. RAID 0

Answer: (C)

Choosing RAID 10 for maximum fault tolerance with six hard drives is a solid decision due to the dual nature of data protection and performance it provides. RAID 10, which combines mirroring and striping, offers redundancy by creating mirrored pairs of drives while also allowing for improved read and write speeds through striping. In a RAID 10 setup with six drives, three mirrored pairs are created. This means that if one drive from a mirrored pair fails, the data is still accessible from the other drive in that pair. This setup allows for the loss of multiple drives, as long as they do not belong to the same mirrored pair, without any data loss. Therefore, RAID 10 can sustain up to three drive failures in this scenario, significantly enhancing fault tolerance compared to other RAID levels. On the other hand, while RAID 5 also supports fault tolerance through parity distributed across all drives, it can only withstand the loss of a single drive without data loss. Additionally, RAID 5's performance can suffer during the rebuilding process after a drive failure due to the overhead of parity calculations, making RAID 10 more desirable for environments where reliability and performance are critical. RAID 3 and RAID 0 do not provide adequate fault tolerance. RAID 3 uses

Choosing RAID 10 for maximum fault tolerance with six hard drives is a solid decision due to the dual nature of data protection and performance it provides. RAID 10, which combines mirroring and striping, offers redundancy by creating mirrored pairs of drives while also allowing for improved read and write speeds through striping.

In a RAID 10 setup with six drives, three mirrored pairs are created. This means that if one drive from a mirrored pair fails, the data is still accessible from the other drive in that pair. This setup allows for the loss of multiple drives, as long as they do not belong to the same mirrored pair, without any data loss. Therefore, RAID 10 can sustain up to three drive failures in this scenario, significantly enhancing fault tolerance compared to other RAID levels.

On the other hand, while RAID 5 also supports fault tolerance through parity distributed across all drives, it can only withstand the loss of a single drive without data loss. Additionally, RAID 5's performance can suffer during the rebuilding process after a drive failure due to the overhead of parity calculations, making RAID 10 more desirable for environments where reliability and performance are critical.

RAID 3 and RAID 0 do not provide adequate fault tolerance. RAID 3 uses