SK0-003 · Question #461
A technician is installing a server with sixteen 1 TB drives. They want the benefit of both speed and redundancy. Which of the following RAID configurations should be used?
The correct answer is D. RAID 50. For a server with sixteen 1 TB drives needing both speed and redundancy, RAID 50 is the optimal configuration. It combines the performance benefits of striping with the fault tolerance of parity for large disk arrays.
Question
A technician is installing a server with sixteen 1 TB drives. They want the benefit of both speed and redundancy. Which of the following RAID configurations should be used?
Options
- ARAID 0
- BRAID 1
- CRAID 3
- DRAID 50
How the community answered
(45 responses)- A4% (2)
- B13% (6)
- C2% (1)
- D80% (36)
Why each option
For a server with sixteen 1 TB drives needing both speed and redundancy, RAID 50 is the optimal configuration. It combines the performance benefits of striping with the fault tolerance of parity for large disk arrays.
RAID 0 provides striping for speed but offers no redundancy, meaning a single drive failure results in data loss.
RAID 1 provides mirroring for redundancy but sacrifices 50% of storage capacity and does not offer significant speed improvement for writes compared to single disks, especially with many drives.
RAID 3 uses byte-level striping with a dedicated parity drive, offering good performance for large sequential reads but can be slow for random access and has a single point of failure for parity. It is less common than other RAID levels for general-purpose servers.
RAID 50, also known as RAID 5+0, stripes data across multiple RAID 5 arrays. This configuration provides the speed benefits of striping (RAID 0) and the redundancy and fault tolerance of parity (RAID 5), making it suitable for a large number of drives where both performance and protection are critical.
Concept tested: RAID levels for speed and redundancy
Source: https://learn.microsoft.com/en-us/windows-server/storage/disk-management/understanding-raid
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