RAID Configurations for Maximum Fault Tolerance

C.

The RAID configuration that provides maximum fault tolerance with six hard drives is RAID 10 (also known as RAID 1+0).

RAID stands for Redundant Array of Independent Disks. It is a method of combining multiple hard drives into a single logical unit to improve performance, reliability, and/or data protection.

RAID 3 uses byte-level striping with a dedicated parity disk. This means that data is divided into small chunks and distributed across multiple drives, and one drive is dedicated to storing parity information. RAID 3 is not suitable for maximum fault tolerance because it only allows for one drive to fail before data is lost.

RAID 5 uses block-level striping with distributed parity. This means that data is divided into blocks and distributed across multiple drives, with parity information also distributed across the drives. RAID 5 can tolerate one drive failure without losing data, but it has lower write performance due to the need to calculate parity information.

RAID 0 uses block-level striping without parity or redundancy. This means that data is divided into blocks and spread across multiple drives, but there is no redundancy or parity information. RAID 0 provides the best performance but no fault tolerance.

RAID 10 combines mirroring (RAID 1) and striping (RAID 0). This means that data is mirrored across pairs of drives, and then the mirrored pairs are striped across multiple drives. RAID 10 can tolerate up to two drive failures (as long as they are not in the same mirrored pair) without losing data, and it provides good read and write performance.

In summary, the technician should use RAID 10 to provide maximum fault tolerance with six hard drives.